Editor Profile

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Prof. Ir. Dr. Abdul Latif Ahmad, CEng., FIChemE, P.Eng

Professor

Present

School of Chemical Engineering, Universiti Sains Malaysia

Pulau Pinang

Malaysia

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Prof. Ir. Dr. Abdul Latif has served as the Dean of the School of Chemical Engineering (2005-2010), Research Dean (2010-2012), Director of Nexus Engineering (2017-2019) and Board of Governance (2022-2023) at Universiti Sains Malaysia. Virtually, he is the Head for Membrane Science and Technology Cluster at USM. He obtained his BEng, MSc and PhD from the University of Wales, Swansea, UK. Being a Chartered Engineer and a Fellow to The Institution of Chemical Engineers (IChemE) UK, he is frequently being appointed by IChemE to accredit Chemical Engineering Program in Europe, Australia, New Zealand, Sri Lanka, Indonesia, Singapore and Malaysia. He is also a Fellow of The World Academy of Sciences (TWAS), recognizing his exceptional contributions to science in developing countries. He also has served as an evaluator for numerous national and international research grants. He is an internationally renowned and acclaimed award-winning researcher in membrane science and technology. His enthusiasm and dedication towards his research works have been reflected in his achievements in winning numerous scientific invention awards, including Prince Sultan bin Abdulaziz International Prize for Water by the Kingdom of Saudi Arabia (2006), 20th Khwarizmi International Award by the Iranian Ministry of Science and Technology (2007), Novel Engineering Solution (NES) Award by the IChemE UK (2008), TWAS Prize in Engineering Sciences, Italy (2012), Rotary Research Gold Medal Award by the Rotary Club Kuala Lumpur (2012) and Merdeka Award by the Government of Malaysia (2014). To-date, a total of 60 personal achievement awards and 69 research product awards have been won. His active participation in scientific research has also been exhibited by being the recipient of multiple research grants in various disciplines sponsored by government and non-government bodies, with a cumulative value of more than RM 35 million. His capability in carrying out quality research work of international standard has been further supported by publication of almost 580 articles in indexed refereed journals. With current cumulative citation number of 28,374 and H-index of 77, he is one of the World’s Most Influential Scientific Mind and Highly Cited Researcher in 6 years in a row (2017-2022), a recognition given by Clarivate Analytics. As tenacious educator, he has successfully graduated 65 PhD and 84 MSc students and currently on-going 6 PhD and 2 MSc.

  • Membrane Science and Technology:
  • Development of polymeric, ceramic, and hybrid membranes for separation processes
  • Supported liquid membranes (SLM) and ionic liquid-based membranes for selective extraction
  • Nanostructured and nanosheet membranes for advanced filtration applications
  • Water and Wastewater Treatment:
  • Membrane processes for removal of emerging contaminants (e.g., pharmaceuticals, heavy metals)
  • Desalination and water reuse technologies
  • Hybrid membrane systems for sustainable water purification
  • Gas Separation and CO2 Capture:
  • Membrane-based carbon capture and storage (CCS)
  • Separation of industrial gases for energy and environmental applications
  • Green and Sustainable Engineering Solutions:
  • Bio-based and eco-friendly membrane materials
  • Process intensification for energy-efficient separations
  • Nanomaterials and Functional Coatings:
  • Surface modification of membranes for anti-fouling and high selectivity
  • Incorporation of nanomaterials (e.g., MOFs, COFs, graphene) into membranes
  • Industrial Process Applications:
  • Membrane applications in petrochemical, pharmaceutical, and food industries
  • Scale-up and commercialization of membrane technologies
  • Computational and Process Modeling:
  • Transport phenomena modeling in membrane systems
  • Simulation and optimization of membrane processes
  • Innovation and Technology Transfer:
  • Commercialization of patented membrane products
  • Collaboration with industry for real-world water and gas treatment challenges
  • Bowen, W.R and Ahmad A.L., Pulsed Electrophoretic Filtercake Release in Dead-End Membrane Processes, American Institute of Chemical Engineering Journal (AIChE), 43 (1997) pp 959-970.
  • A.L. Ahmad and M.R. Othman, Performance of Electrophoretic Membrane System in Ultrafiltration of Silica Colloids: Effect of Operating Parameters, IIUM- Engineering Journal, 1 (2000) pp 53-60.
  • A.L. Ahmad, T.S. Phang and V.R. Radhakrishnan, Comparison Studies of Control Schemes For pH Contol Processes, Journal of Physical Sciences, 11 (2000) pp 129-140.
  • M.R. Othman, H. Mukhtar and A.L. Ahmad, Permeabilities of Pure Gases in Porous Inorganic Membrane, Journal Of Physical Sciences, 11 (2000) pp 37 – 56.
  • M.R. Othman, H. Mukhtar, Y.W. Ring and A.L. Ahmad, Development of Zirconia-Alumina Composite Membrane by Using Sol-Gel Technique, Journal of Physical Sciences, 11 (2000) pp 27 – 36.
  • Abdul Latif Ahmad and Norliza Ibrahim, Pulsed Electrokinetics Membrane Cleaning For Dead End Microfiltration and Ultrafiltration, Institute Of Engineer‘s Malaysia (IEM) Journal, (2000) pp 24-30.
  • A.L. Ahmad, N.A. Ariffin and M.Z. Abu Bakar, Prediction Of Flux Using Force Balance Model For Electrophoretic Membrane Cleaning, International Journal Of Engineering Science And Technology, (2001) pp 103-119.
  • A.L. Ahmad and S. Ismail, Prevention Of Membrane Fouling Using Electric Pulse In Dead End Microfiltration Of Titanium Suspensions, Journal of Technology (Environmental and Technology Process), 34 (2001) pp 21-37.
  • A.L. Ahmad and A. Mariadas, Spray Drying As An Alternative Method for Production of Cocoa Powder with Prior Usage of SFE to Reduce the Cocoa Fat, Journal of Physical Sciences, 12 (2001) pp 105-115.
  • A.L. Ahmad and I.A. Azid, Membrane Cleaning Using Electric Pulse In Dead End Ultrafiltration of Proteneceous Solution, ASEAN Journal on Science & Technology for Development, 18 (2001) pp 45-58.
  • M.R. Othman, A.L. Ahmad and H. Mukhtar, Characteristics of Unsupported Alumina Membrane Prepared using Sol-Gel Technique, ASEAN Journal on Science & Technology for Development, 18 (2001) pp 59-70.
  • S.H. Tan, A.L. Ahmad, M.G. Mohd. Ghazali and H.Hassan, Separation of Aqueous Isopropanol through Chitosan/Poly (Vinyl Alcohol) Blended Membranes by Pervaporation, IIUM-Engineering Journal, 2 (2001) pp 7 – 12.
  • A.L. Ahmad, W.A. Harris and Syafie, Removal Of Dye From Wastewater Of Textile Industry Using Membrane Technology, Journal of Technology (Environmental and Technology Process), 36 (2002) pp 31-44.
  • A.L. Ahmad, W.R. Bowen and N. Ibrahim, Automated Electrophoretic Membrane Cleaning For Dead End Microfiltration and Ultrafiltration, Journal Of Separation and Purification Technology, 29 (2002) pp 105-112.
  • S.H. Tan, A.L. Ahmad, M.G. Mohd. Ghazali and H.Hassan, Performance of Chitosan Membranes Crosslinked with Gluteraldehyde in Pervaporation Separation, ASEAN Journal of Sciences and Technology for Development, 19 (2002) pp 69-83.
  • A.L.Ahmad, N.Ibrahim, S.Ismail and S.Bhatia, Coagulation-Sedimentation-Extraction Pretreatment Methods for the Removal of Suspended Solids and Residual Oil from Palm Oil Mill Effluent (POME), IIUM-Engineering Journal, 3(1) (2002) pp23-31.
  • A.L. Ahmad and N. Ibrahim, Pulsed Electrophoretic Membrane Cleaning for Dead-end Ultrafiltration Process, Jurnal Kejuruteraan, 11 (2002) pp 3-16.
  • A.L. Ahmad, W.K.Ng and S.H. Tan, Characterisation of Homogeneous and Crosslinked Chitosan Membranes Developed from Shrimp Shell Waste, Journal of Physical Science, 13 (2002) pp 9 – 20.
  • A.L.Ahmad, W.K.Ng and S.H. Tan, Synthesis and Evaluation of Homogeneous and Crosslinked Chitosan Based Membranes, Journal of Industrial Technology, 11(2) (2002) pp 57 – 66.
  • Ahmad, A. L., Ooi, B. S. & Choudhury, J. P. 2002. Preparation and characterization of interfacial 27ehavior27ed membrane from 3,5-diaminobenzoic acid. Songklanakarin Journal of Science and Technology, 24 (Supplementary), 807-814.
  • A.L. Ahmad, B.S. Ooi and J.P. Choudhury, Preparation and Characterisation of Co-Polyamide Thin Film Composite Membrane from Piperazine and 3,5-Diaminobenzoic Acid, Desalination Journal, 158 (2003) pp 101-108.
  • I.A. Azid, A.L. Ahmad, R.M. Yusoff and K. N. Seetharamu, Application of Back Propagation Neural Network in Predicting Palm Oil Mill Emmissions, ASEAN Journal of Sciences and Technology for Development, 20 (2003) pp 71 – 86.
  • A.L. Ahmad, S. Ismail and S. Bhatia, Water Recycling from Palm Oil Mill Effluent (POME) using Membrane Technology, Desalination Journal, 157 (2003) pp 87-95.
  • A.L. Ahmad, S.Ismail, N.Ibrahim and S.Bhatia, Removal of Suspended Solid and Residual Oil from Palm Oil Mill Effluent, Journal of Chemical Technology and Biotechnology, 78(9) (2003) pp 971 – 978.
  • A.L. Ahmad and A. Mariadas, Reduction of Membrane Fouling using A Helicle Baffle for Cross Flow Filtration: A Review, Journal Of Industrial Technology, 12(1) (2003) pp 9 – 26.
  • A.L. Ahmad, Y.H. Chong and B.S. Ooi, Separation 27ehavior of Phenol, p-Nirophenol and 3-Chlorophenol by using Cellulose Acetate Membrane, Jurnal Jurutera Kimia Malaysia, 3 (2003) pp 73 – 84.
  • H.I. Maarof, B.H. Hameed and A.L. Ahmad, Adsorption Equilibrium of Phenol from Aqueous Solution Using Modified Clay, Jurnal Jurutera Kimia Malaysia, 3 (2003) pp 85- 96.
  • A.L. Ahmad, B.S. Ooi, S.H. Tan and J.P. Choudhury, Preparation and Characterization of Interfacial Polymerised Membrane From 3,5-Diaminobenzoic Acid, Songklanakarin Journal of Science and Technology, 24 (2002) pp B-91 – B101.
  • A.L. Ahmad, K. Shitamparam, S. Ismail and M.M. D. Zulkali, Extraction of Residue Oil from palm Oil Mill Effluent (POME) using Organic Solvent, ASEAN Journal of Sciences and Technology for Development, 20 (3&4) (2003) pp 385-394.
  • S.H. Tan, A.L. Ahmad, M.G. Mohd. Nawawi, H. Hasan, Sorption and Swelling Characteristic of Chitosan Membrane in Isopropanol-water Mixtures, International Journal of Engineering Science & Technology, 3(1) (2003) pp 53 – 64.
  • A.L. Ahmad and K.Y. Tan, Reverse Osmosis of Binary Organic Solute Mixtures in the Presence of Strong Solute-Membrane Affinity,Desalination Journal, 165 (2004) pp 193 –199.
  • A.Wahab Mohammad, Nora’aini Ali, A.L. Ahmad and Nidal Hilal, Optimized Nanofiltration Membranes: Relevance to Economic Assessment and Process Performance,Desalination Journal, 165 (2004) pp 243 – 250.
  • A.L. Ahmad, B.S. Ooi, A.Wahab Mohammad and J.P. Choudhury, Development of a Highly Hydrophilic Nanofiltration Membrane for Desalination and Water Treatment, Desalination Journal, 168 (2004) pp 215 – 221.
  • A.L. Ahmad and A. Mariadas (2004). Baffled Microfiltration Membrane and Its Fouling Control for Feed Water of Desalination, Desalination Journal, 168, (2004) pp 223-230.
  • A.L. Ahmad, S. Sumathi &B. Hameed, Chitosan:A Natural Biopolymer for the Adsorption of Residue Oil from Oily Wastewater, Adsorption Science and Technology Journal, 22(1) (2004) pp 75 – 88.
  • A.L. Ahmad, M.R. Othman and H. Mukhtar, H2 Separation from Binary Gas Mixture using Coated Alumina-Titania Membrane by Sol Gel Technique at High Temperature Region, International Journal of Hydrogen Energy, 29(8) (2004) pp 817-828.
  • A.L. Ahmad, B.S. Ooi and J. Choudhary, Effect of Hydrophilization Additive and Reaction Time on Separation Properties of Polyamide Nanofiltration Membrane, Journal of Separation Science and Technology, 39(8) (2004), pp 1815 – 1831.
  • H.I. Maarof, B.H. Hameed and A.L. Ahmad, Adsorption Isotherm for Phenol onto Activated Carbon, Asean Journal of Chemical Engineering, 4(1) (2004) pp 70 – 76.
  • A.L. Ahmad, B.S Ooi, J.P. Choudhury and A.W. Mohammad, Effect of Constricted Polymerization Time on nanofiltration Membrane Characteristics and Performance: A study Using Donnan Steric Pore Flow Model,Journal of Applied Polymer Science, 94 (2004) pp 394 – 399.
  • H.I. Maarof, B.H. Hameed, A.L.Ahmad, Adsorption Kinetics of Phenolic Compoundes onto Activated Carbon, Engineering Journal of the University of Qatar, 17 (2004) pp 29-38.
  • A.L. Ahmad, B.S. Ooi, A. W. Mohammad, J. P. Choudhury, Composite Nanofiltration Polyamide Membrane: A Study on the Diamine Ratio and Its Performance Evaluation, Industry & Engineering Chemistry Research, 43 (2004) pp 8074 – 8082.
  • A.L. Ahmad, I.A. Azid, A.R. Yusof, K.N. Seetharamu, Emission Control in Palm Oil Mills Using Artificial Neural Network and Genetic Algorithm, Computers and Chemical Engineering, 28(12) (2004) pp 2709 -2715.
  • Y.B.C. Ani, B.H. Hameed and A.L. Ahmad,Basic dye Adsorption on Modified Montmorillonite, Asean Journal on Science and Technology for Development, 21(2&3) (2004) pp 93-102.
  • A.L. Ahmad, B.S. Ooi and J.P. Choudhury, Characteristic Of Co-Polyamide Nanofiltration Membrane: Effect Of Reaction Time, Journal of Technology, 41 (2004) pp 49 -60.
  • M.R. Othman, H. Mukhtar and A.L. Ahmad, Gas Permeation Characteristic Across Nano-Porous Inorganic Membranes, IIUM Engineering Journal, 5(2) (2004) pp 17 – 33.
  • A.L. Ahmad, S. Sumathi and Bassim H. Hameed, Coagulation-Adsorption of Suspended Solids and Residual Oil from Palm Oil Mill Effluent using Chitosan, ASEAN Journal of Chemical Engineering, 4(2) (2004) pp. 48-57.
  • A.W. Mohamad, N. Ali and A. L. Ahmad, Use of Nanofiltration Predictive Model for Membrane Selection and System Cost Assessment, Journal of Separation and Purification Technology, 41 (2005) pp. 29-37.
  • A.L. Ahmad, S. Bhatia, N.Ibrahim and S.Sumathi, Adsorption of Residual Oil from Palm Oil Mill Effluent using Rubber Powder,Brazilian Journal of Chemical Engineering, 22(3) (2005) pp 371 – 379.
  • A.L. Ahmad, M.F. Chong and S. Bhatia, Mathematical Modelling and Simulation of Multiple Solutes System for Nanofiltration Process,Journal of Membrane Science, 253(1-2) (2005) pp 103-115.
  • A.L. Ahmad and B.S. Ooi, Properties-performance of Thin Film Composites Membrane: Study on Trimesoyl Chloride Content and Polymerization Time,Journal of Membrane Science, 255(1-2) (2005), pp 67-77.
  • A.L. Ahmad, S. Sumathi and B.H. Hameed, Residue Oil and Suspended Solids Removal using Natural Adsorbents Chitosan, Bentonite and Activated Carbon: A Comparative Study. Chemical Engineering Journal, 108(1-2) (2005) pp 179-185.
  • A.L. Ahmad, A. Mariadas and K.K. Lau, Flux Enhancement by Introducing Turbulence Effect for Microfiltration of Saccharamyces Cerevisiae, Journal of Separation Science and Technology, 40 (2005) pp 1213-1225.
  • A.L. Ahmad, S. Sumathi and B.H. Hameed, Adsorption of Residue Oil from Palm Oil Mill Effluent using Powder and Flake Chitosan: Equilibrium and Kinetics Studies, Water Research Journal, 39(12) (2005) pp 2483-2494.
  • A.L. Ahmad, M. Sarif and S. Ismail, Development of Integrally Skinned Ultrafiltration Membrane for Wastewater Treatment: Effect of Different Formulation of PSf/NMP/PVP on Flux and Rejection, Desalination Journal, 179(1-3) (2005) pp 257-26.
  • M.M.D. Zulkali, A.L. Ahmad and C.J.C. Derek, Membrane Application in Proteomic Studies: Preliminary Studies on the Effect of pH, Ionic Strength and Pressure on Protein Fractionation, Desalination Journal, 179(1-3) (2005) pp 381-390.
  • Azam T.Mohd Din, Bassim H. Hameed, A.L. Ahmad, Pyrolysis Kinetics Of Oil-Palm Solid Waste”, Engineering Journal of the University of Qatar, 18 (2005) pp 57-66.
  • A.L. Ahmad, S. Ismail and S. Bhatia, Ultrafiltration Behavior In The Treatment Of Agro-Industry Effluent: Pilot Scale Studies, Journal Of Chemical Engineering Science, 60(19) (2005) pp 5385-5394.
  • A.L. Ahmad, N.F. Idrus and M.R.Othman, Preparation of Perovskite Alumina Ceramic Membrane using Sol-Gel Method, Journal of Membrane Science, 262(1-2) (2005) pp 129-137.
  • A.L. Ahmad, K.K. Lau and M.Z. Abu Bakar, Impact Of Different Spacer Filament Geometries On Concentration Polarization Control In Narrow Membrane Channel, Journal Of Membrane Science, 262(1-2) (2005) pp 138-152.
  • A.L. Ahmad, S. Ismail and S. Bhatia, Membrane Treatment For Palm Oil Mill Effluent: Effect of Transmembrane Pressure And Crossflow Velocity, Desalination Journal, 179(1-3) (2005) pp 245-255.
  • A.L. Ahmad, K.K. Lau, M.Z. Abu Bakar and S.R. Abd. Shukor, Integrated CFD Simulation Of Concentration Polarization In Narrow Membrane Channel, Computers and Chemical Engineering Journal, 29(10) (2005) pp 2087-2095.
  • A.L. Ahmad, S. Ismail And S. Bhatia, Optimization Of Coagulation-Flocculation Process For Palm Oil Mill Effluent Using Response Surface Methodology, Journal of Environmental Science and Technology, 39(8) (2005) pp 2828-2834.
  • A.L. Ahmad, K.K. Lau, M.Z. Abu Bakar and S.R. Abd. Shukor, Modified Boundary Condition for Membrane Wall Concentration Prediction in Narrow Membrane Channel, Journal of Applied Membrane Sciences & Technology, 1 (2005) pp 87-101.
  • A.L. Ahmad and B.S. Ooi, Optimization Of Composite Nanofiltration Membrane Through pH Control: Application In CuSo4 Removal, Journal of Separation and Purification Technology, 47 (2006) pp. 162-172.
  • A.L. Ahmad, M.G Mohd. Nawawi, L.K. So, Development of Novel NH4 Zeolite-Filled Chitosan Membranes for the Dehydration of Water-Isopropanol Mixture using Pervaporation, Journal of Separation Science and Technology, 40(15) (2005) pp. 3071 -3091.
  • A.L. Ahmad, M.G Mohd. Nawawi, L.K. So, Characterization and Performance Evaluation of Sodium Zeolite-Y- Filled Chitosan Polymeric Membrane: Effect of Sodium Zeolite –Y Concentration, Journal of Applied Polymer Science, 99(4) (2006) pp. 1740 – 1751.
  • S.Y.Chin, A.L. Ahmad, A.R. Mohamed and S. Bhatia, Characterization and Activity of Zinc Acetate Complex Supported over Functionalized Silica as a Catalyst for the Production of Isopropyll Palmitate, Applied Catalysis A, 297(1) (2006) pp 8 – 17.
  • M.M.D. Zulkali, A.L.Ahmad and N.H. Norulakmal, Oryza Sativa L.Husk As Heavy Metal Adsorbent: Optimization With Lead As Model Solution, Journal of Bioresource Technology, 97(1) (2006) pp 21-25.
  • A.L. Ahmad, S. Sumathi and B.H. Hameed, Coagulation of Residue Oil and Suspended Solid in Palm Oil Mill Effluent by Chitosan, Alum and PAC, Chemical Engineering Journal, 118(1-2) (2006) pp 99-105.
  • A.L. Ahmad, S.W. Puasa and M.M.D. Zulkali, Micellar-Enhanced Ultrafiltration for Removal of Reactive Dyes from an Aqueous Solution, Desalination, 191(1-3) (2006) pp 153-161.
  • A.L. Ahmad, M.F. Chong and S. Bhatia, Drinking Water Reclamation From Palm Oil Mill Effluent (POME) Using Membrane Technology, Desalination, 191(1-3) (2006) pp 35-44.
  • S.H. A. Rahman, J.P. Choudhury and A.L. Ahmad, Production of Xylose From Oil Palm Empty Fruit Bunch Using Sulfuric Acid, Biochemical Engineering Journal, 30(1) (2006) pp 97-103.
  • A.L. Ahmad and B.S. Ooi, Characterization of Composite Nanofiltration Membrane Using Two-Parameters Model of Extended Nernst-Planck Equation, Journal Of Separation And Purification Technology, 50(3) (2006) pp. 300-309.
  • A.L. Ahmad, Chong Mei Fong and Subhash Bhatia, Ultrafiltration Modeling of Multiple Solutes System for Continuous Cross-Flow Process, Chemical Engineering Science, 61(15) (2006) pp. 5057-5069.
  • A. L. Ahmad and N.N.N. Mustafa, Pore surface fractal analysis of palladium-alumina ceramic membrane using Frenkel-Halsey-Hill (FHH) model, Journal of Colloid and Interface Science, 301(2) (2006) pp. 575-584.
  • M.R. Othman, N.N.N. Mustafa and A.L. Ahmad, Effect of thermal treatment on the microstructure of sol-gel derived porous alumina modified platinum,Microporous and Mesoporous Materials, 91(1-3) (2006) pp 268-275.
  • S.S. Wong, T.T. Teng, A. L. Ahmad, A. Zuhairi and G. Najafpour, Treatment of pulp and paper mill wastewater by polyacrylamide (PAM) in polymer induced flocculation, Journal of Hazardous Materials, 135(1-3) (2006) pp. 378-388.
  • A. L. Ahmad, N. F. Idrus and S. R. Abd Shukor, Surface Fractal Dimension of Perovskite-Doped Alumina Membrane: Influence of Calcining Temperature, Journal of the American Ceramic Society, 89(5) (2006) pp. 1694.
  • A. L. Ahmad, M. R. Othman andN. F. Idrus, Synthesis and Characterization of Nano-Composite Alumina-Titania Ceramic Membrane for Gas Separation, Journal of the American Ceramic Society, 89(10) (2006) pp. 3187-3193.
  • Ahmad, A.L., Chong, M.F. and Bhatia, S., Prediction of Breakthrough Curves for Adsorption of Complex Organic Solutes Present in Palm Oil Mill Effluent (POME) On Granular Activated Carbon, Industrial and Engineering Chemistry Research, 45(20) (2006) pp. 6793-6802.
  • Ahmad, A.L. and Lau, K.K., Impact of Different Spacer Filaments Geometries On 2D Unsteady Hydrodynamics And Concentration Polarization in Spiral Wound Membrane Channel, Journal of Membrane Science, 286(1-2) (2006) pp. 77-92.
  • Ahmad, A.L., Mohd Nawawi, M.G. and So, L.K., Characterization and performance evaluations of sodium zeolite-Y filled chitosan polymeric membrane: Effect of sodium zeolite-Y concentration, Journal of Applied Polymer Science, 99(4) (2006) pp. 1740-1751.
  • Bhatia, S., Ahmad, A.L., Mohamed, A.R. & Chin, S.Y., Production of isopropyl palmitate in a catalytic distillation column: Experimental studies,Chemical Engineering Science, 61(22) (2006) pp. 7436-7447.
  • Chin, S.Y., Ahmad, A.L., Mohamed, A.R. & Bhatia, S., Esterification of palmitic acid with iso-propanol in a catalytic distillation column: Modeling and simulation studies, International Journal of Chemical Reactor Engineering, 4 (2006) pp. 1-17.
  • Chin, S.Y., Ahmad, A.L., Mohamed, A.R. & Bhatia, S., Characterization and activity of zinc acetate complex supported over functionalized silica as a catalyst for the production of isopropyl palmitate, Applied Catalysis A: General, 297(1) (2006) pp. 8-17.
  • Zulkali, M.M.D., Ahmad, A.L. and Norulakmal, N.H., Oryza sativa L. husk as heavy metal adsorbent: Optimization with lead as model solution, Bioresource Technology, 97(1) (2006) pp. 21-25.
  • Rahman, S.H. A., Choudhury, J.P., Ahmad, A.L. and A.H. Kamaruddin, Optimization studies on acid hydrolysis of oil palm empty fruit brunch fiber for production of Xylose, Bioresource Technology, 98 (2006) pp. 554-559.
  • A.L. Ahmad, S. R. Abd Shukor and C. P. Leo, Synthesis and Characterization of Polymeric V2O5/AlO (OH) with Nanopores on Alumina Support, Journal of Nanoscience and Nanotechnology, 6(12) (2006) pp. 3910-3914.
  • A. L. Ahmad, M.M. Loh and J.A. Aziz, Preparation and Characterization of Activated Carbon from Oil Palm Wood and Its Evaluation On Methylene Blue Adsorption, Dyes and Pigments, 75 (2007) pp. 263-272.
  • Hameed, B.H., Din, A.T.M. and Ahmad, A.L., Adsorption of methylene blue onto bamboo-based activated carbon: Kinetics and equilibrium studies, Journal of Hazardous Materials, 141 (2007) pp. 819-825.
  • Tan, I.A.W., Hameed, B.H. and Ahmad, A.L., Equilibrium and kinetic studies on basic dye adsorption by oil palm fibre activated carbon, Chemical Engineering Journal, 127 (2007) pp. 111-119.
  • S.H.A. Rahman, J.P. Choudhury, A.L. Ahmad and A. H. Kamaruddin, Optimization studies on acid hydrolysis of oil palm empty fruit bunch fiber for production of xylose, Bioresource Technology, 98 (2007) pp. 554-559.
  • Hameed, B.H., Ahmad, A.L. and Latiff, K.N.A., Adsorption of basic dye (methylene blue) onto activated carbon prepared from rattan sawdust, Dyes and Pigments, 75 (2007) pp. 143-149.
  • M.M.D Zulkali, A.L. Ahmad, N.H. Norulakma and NS Sharifah, Comparative Studies of Oryza Sativa L.Husk and Chitosan As Lead Adsorbent, Journal of Chemical Technology and Biotechnology, 81 (2006) 1324-1327.
  • Ahmad, A.L., Wong, S.S., Teng, T.T. and Zuhairi, A., Optimization of Coagulation-Flocculation Process for Pulp and Paper Mill Effluent by Response Surface Methodological Analysis, Journal of Hazardous Materials, 145 (2007) pp. 162-168.
  • Ahmad, A.L. and Mustafa, N.N.N., Sol–gel synthesized of nanocomposite palladium–alumina ceramic membrane for H2 permeability: Preparation and characterization, International Journal of Hydrogen Energy, 32 (2007) pp. 2010-2021.
  • Ahmad, A.L., Chong, M.F. and Bhatia, S., Mathematical modeling of multiple solutes system for reverse osmosis process in palm oil mill effluent (POME) treatment, Chemical Engineering Journal, 132 (2007) pp. 183-193.
  • A.L. Ahmad and K.K. Lau, Modeling, simulation and experimental validation for aqueous solutions flowing in nanofiltration membrane channel,Industrial & Engineering Chemistry Research, 46 (4) (2007) pp. 1316-1325.
  • S. Bhatia, Z. Othman and A.L. Ahmad, Pretreatment of palm oil mill effluent (POME) using Moringa oleifera seeds as natural coagulant,Journal of Hazardous Material, 145 (1-2) (2007) pp. 120-126.
  • A.L. Ahmad, S.W.Puasa, Reactive dyes decolourization from an aqueous solution by combined coagulation/micellar Enhanced Ultrafitration Process, Chemical Engineering Journal, 132 (2007) pp. 257-265.
  • S. Bhatia, Z. Othman and A.L. Ahmad, Coagulation – Flocculation Process for POME Treatment using Moringa oleiferaSeeds Extract: Optimization Studies, Chemical Engineering Journal, 133 (2007) pp. 205-212.
  • A.L. Ahmad, S.S. Wong, T.T. Teng and A. Zuhairi, Improvement of Alum and PAC Coagulation by Polyacrylamids (PAMs) for the Treatment of Pulp and Paper Mill Wastewater, Chemical Engineering Journal, 137 (3) (2008) pp. 510-517.
  • I.A.W. Tan, A.L. Ahmad and B.H. Hameed, Optimization of Preparation Conditions for Activated Carbons from Coconut Husk Using Response Surface Methodology, Chemical Engineering Journal, 137 (3) (2008) pp. 462-470.
  • M. Hasan, A.L. Ahmad and B.H. Hameed, Adsorption of Reactive Dye onto Cross-Linked Chitosan/Oil Palm Ash Composite Beads, Chemical Engineering Journal, 136 (2-3) (2008) pp. 164-172.
  • A.L. Ahmad, L.S. Tan, and S.R. Abd. Shukor, Dimethoate and Atrazine Retention from Aqueous Solution by Nanofiltration Membranes, Journal of Hazardous Material,151 (1) (2008) pp. 71-77.
  • A. L. Ahmad, S. C. Low and S.R. Abd. Shukor, Effects of Membrane Cast Thickness on Controlling the Macrovoid Structure in Lateral Flow Nitrocellulose Membrane and Determination of Its Characteristics,Scripta Materialia, 57 (2007) pp. 743-746.
  • A.L. Ahmad, M.F. Chong and S. Bhatia, Population Balance Model (PBM) for Flocculation Process: Simulation and Experimental Studies of Palm Oil Mill Effluent (POME) Pretreatment, Chemical Engineering Journal , 140(2008) pp. 86-100.
  • I.A.W. Tan, A.L. Ahmad and B.H. Hameed, Preparation of activated carbon from coconut husk: Optimization study on removal of 2,4,6-trichlorophenol using response surface methodology, Journal of Hazardous Materials, 153 (2008) pp. 709-717.
  • B.H. Hameed, D.K. Mahmoud and A.L. Ahmad, Sorption of basic dye from aqueous solution by pomelo (Citrus grandis) peel in a batch system,Colloids and Surfaces A: Physicochemical and Engineering Aspects, 316 (1-3) (2008) pp. 77-84.
  • Ahmad, A. L.; Tan, L. S.; Abd. Shukor, S. R., The role of pH in nanofiltration of atrazine and dimethoate from aqueous solution, Journal of Hazardous Materials, 154 (2008) pp. 633-638.
  • Bhatia, S.; Mohamed, A. R.; Ahmad, A. L.; Chin, S. Y., Production of isopropyl palmitate in a catalytic distillation column: Comparison between experimental and simulation studies, Computers & Chemical Engineering,31(10) (2007) pp. 1187-1198.
  • Tan, I. A. W.; Ahmad, A. L.; Hameed, B. H., Adsorption of basic dye on high-surface-area activated carbon prepared from coconut husk: Equilibrium, kinetic and thermodynamic studies, Journal of Hazardous Materials, 154 (2008) pp. 337-346.
  • Fong,Y.Y.;Abdullah, A.Z.;Ahmad, A.L.;Bhatia,S.,Zeolite membrane based selective gas sensors for monitoring and control of gas emissions:Development and their performance,Sensor Letters,5(2007) 485-499.
  • A.L. Ahmad, C. P. Leo and S. R. Abd Shukor, Tailoring of a γ-alumina membrane with a bimodal pore size distribution for improved permeability, Journal of the American Ceramic Society, 91(1) (2008) pp. 246-251.
  • A.L. Ahmad, N. A. H. Hairul, The effect of protein-membrane interactions on filtration behavior in Forced-Flow Electrophoresis of protein solutions, Separation and Purification Technology, 61 (2008) pp. 384-390.
  • A.L. Ahmad, C. P. Leo and S. R. Abd Shukor, Preparation of γ-alumina thin layer with bimodal pore size distribution for diminution of transport resistance in bi-layered membrane, Thin Solid Films, 516(12) (2008) pp. 4319-4324.
  • Tan, I. A. W.; Ahmad, A. L.; Hameed, B. H., Equilibrium and kinetic studies of methylene blue adsorption on activated carbon prepared from oil palm empty fruit bunch,Journal of Industrial Technology,16 (2007)pp.63-79.
  • I.A.W. Tan, A.L. Ahmad and B.H. Hameed, Adsorption of basic dye using activated carbon prepared from oil palm shell: Batch and fixed bed studies, Desalination, 225(2008), pp. 13-28.
  • A.L. Ahmad; S. C. Low; S.R. Abd. Shukor; A. Ismail, Synthesis and Characterization of Polymeric Nitrocellulose Membrane: Influence of Additives and Pore Former on Membrane Morphology, Journal of Applied Polymer Science, 108 (2008) pp. 2550–2557.
  • I.A.W. Tan, A.L. Ahmad and B.H. Hameed, Enhancement of basic dye adsorption uptake from aqueous solutions using chemically modified oil palm shell activated carbon,Colloids and Surfaces A: Physicochemical and Engineering Aspects,318 (2008) pp. 88-96.
  • A.L. Ahmad, C. Y. Chan, S. R. Abd Shukor and M. D. Mashitah, Recovery of oil and carotenes from palm oil mill effluent (POME),Chemical Engineering Journal,141 (2008) pp. 383-386.
  • W.J.N. Fernando, A.L. Ahmad, S.R. Abd. Shukor and Y.H. Lok, A model for constant temperature drying rates of case hardened slices of papaya and garlic, Journal of Food Engineering, 88 (2008) pp. 229-23.
  • B.H. Hameed, D.K. Mahmoud and A.L. Ahmad, Sorption equilibrium and kinetics of basic dye from aqueous solution using banana stalk waste, Journal of Hazardous Materials, 158 (2008) pp. 499-506.
  • B.H. Hameed, I.A.W. Tan and A.L.Ahmad, Optimization of basic dye removal by oil palm fibre-based activated carbon using response surface methodology, Journal of Hazardous Materials, 158 (2008) pp. 324-332.
  • B.H. Hameed, D.K. Mahmoud and A.L.Ahmad, Equilibrium modeling and kinetic studies on the adsorption of basic dye by a low-cost adsorbent: Coconut (Cocos nucifera) bunch waste, Journal of Hazardous Materials, 158 (2008) pp. 65-72.
  • A.L. Ahmad, C.J.C. Derek, M.M.D. Zulkali and Chan Lai Keng, Optimization of thaumatin extraction by aqueous two phase system (ATPS) using response surface methodology (RSM), Separation and Purification Technology,62 (2008) pp. 702-708.
  • Ahmad, A.L., Leo, C.P. & Abd. Shukor, S.R., Preparation of silica/-alumina membrane with bimodal porous layer for improved permeation in ions separation. Journal of the American Ceramic Society,91 (2008) pp. 2009-2014.
  • Fong, Y.Y.; Abdullah, A.Z.; Ahmad, A.L.; Bhatia, S., Development of functionalized zeolite membrane and its potential role as reactor combined separator for para-xylene production from xylene isomers, Chemical Engineering Journal, 139 (2008) pp. 172-193.
  • Y.F. Yeong, A.Z. Abdullah, Ahmad, A.L, S. Bhatia, Synthesis, characterization of phenethyltrimethoxysilane (PE) modified organic-inorganic hybrid silicalite-1 molecular sieves and its transformation into solid acid materials, Advanced Materials Research, 47-50 PART 1 (2008) pp. 238-241.
  • Azam T. Mohd Din, B.H. Hameed, Abdul L. Ahmad, Batch adsorption of phenol onto physiochemical-activated coconut shell, Journal of Hazardous Materials,161 (2009) pp. 1522–1529.
  • I.A.W. Tan, A.L. Ahmad, B.H. Hameed, Fixed-bed adsorption performance of oil palm shell-based activated carbon for removal of 2,4,6-trichlorophenol, Bioresource Technology, 100 (2009) pp. 1494–1496.
  • B.H. Hameed, I.A.W. Tan and A.L. Ahmad, Adsorption isotherm, kinetic modeling and mechanism of 2,4,6-trichlorophenol on coconut husk-based activated carbon,Chemical Engineering Journal,144(2008) pp. 235-244.
  • Y.F. Yeong, A.Z. bin Abdullah, A.L. Ahmad, S. Bhatia, Synthesis and Characterization of Sulphonic Acid 3-Mercaptopropyltrimethoxysilane Functionalized Silicalite-1 Membrane, Journal of Engineering Science and Technology (JESTEC), 3 (2008) pp. 87-96.
  • Y.F. Yeong, A.Z. Abdullah, A.L. Ahmad, S. Bhatia, Synthesis, structure and acid characteristics of partially crystalline silicalite-1 based materials,Microporous and Mesoporous Materials, 123(1-3) (2009) pp. 129-139.
  • A.L. Ahmad, C. Y. Chan, S. R. Abd Shukor and M. D. Mashitah, Adsorption kinetics and thermodynamics of beta-carotene on silica based adsorbent,Chemical Engineering Journal, 148(2-3) (2009) pp. 378-384.
  • A.L. Ahmad, C. P. Leo and S. R. Abd Shukor, Vanadium oxide supported γ-alumina with bimodal porous structure for intra-particle diffusion enhancement in styrene oxidation reaction, Journal Porous Material, 16 (2009) pp. 33-40.
  • A.L. Ahmad, L.S. Tan, and S.R. Abd. Shukor, Modeling of the retention of atrazine and dimethoate with nanofiltration, Chemical Engineering Journal,147 (2009) pp. 280-286.
  • Hameed, B.H., Salman, J.M., Ahmad, A.L.,Adsorption isotherm and kinetic modeling of 2,4-D pesticide on activated carbon derived from date stones, Journal of Hazardous Materials, 163(1) (2009) pp. 121-126.
  • A. L. Ahmad; S. C. Low; S.R. Abd. Shukor; A. Ismail, Optimization of Membrane Performance by Thermal-Mechanical Stretching Process using Responses Surface Methodology (RSM), Separation and Purification Technology, 66 (2009) pp. 177-186.
  • L.H.Chin, B.H.Hameed,A.L.Ahmad,Process Optimization for Biodiesel Production from Waste Cooking Palm Oil (Elaeis guineensis) Using Response Surface Methodology,Energy and Fuels,23(2)(2009) pp. 1040-1044.
  • B.H. Hameed, I.A.W. Tan, A.L. Ahmad, Preparation of oil palm empty fruit bunch-based activated carbon for removal of 2,4,6-trichlorophenol: Optimization using response surface methodology, Journal of Hazardous Materials, 164(2-3) (2009) pp. 1316-1324.
  • I.A.W. Tan, A.L. Ahmad, B.H. Hameed, Adsorption isotherms, kinetics, thermodynamics and desorption studies of 2,4,6-trichlorophenol on oil palm empty fruit bunch-based activated carbon, Journal of Hazardous Materials, 164(2-3) (2009) pp. 473-482.
  • A.L. Ahmad, N.A.H. Hairul, Protein-membrane interactions in Forced-Flow Electrophoresis of protein solutions: effect of initial pH and initial ionic strength, Separation and Purification Technology, 66 (2009) pp. 286-296.
  • M.F. Chong, A.L. Ahmad, S. Bhatia, P.E. Poh, Palm oil mill effluent (POME) treatment using membrane technology, The Chemical Engineer, 814 (2009) pp. 31-33.
  • A. L. Ahmad, C. Y. Chan, S. R. Abd Shukor and M. D. Mashitah, Optimization of oil and carotenes recoveries from palm oil mill effluent using response surface methodology, Journal of Chemical Technology and Biotechnology, 84 (2009) pp. 1063-1069.
  • A.L. Ahmad, P.C. Oh, S.R. Abd Shukor, Sustainable Biocatalytic Synthesis of L-homophenylalanine as Pharmaceutical Drug Precursor, Biotechnology Advances, 27 (2009) pp. 378-384.
  • A. L. Ahmad, S. C. Low, S. R. Abd. Shukor and A. Ismail, Morphological and Thermal-Mechanical Stretching Properties on Polymeric Lateral Flow Membrane, Industrial & Engineering Chemistry Research, 48 (2009) pp. 3417–3424.
  • A.L. Ahmad, M.F. Chong, S. Bhatia, A comparative study on the membrane based palm oil mill effluent (POME) treatment plant, Journal of Hazardous Materials,171 (2009) pp. 166-174.
  • A.L. Ahmad, S.C. Low, S.R. Abd. Shukor and A. Ismail, Optimization of Membrane Formulation and Process Variables via Crossed-Design Concept in Desigin of Experimental (DOE), Separation Science and Technology,44(12), (2009) pp. 2870-2893.
  • A. L. Ahmad, C. Y. Chan, S. R. Abd Shukor and M. D. Mashitah, Separation of oil and carotenes from palm oil mill effluent by adsorption chromatography with silica based adsorbent, Asia-Pacific Journal of Chemical Engineering, 4(5) (2009) pp. 717-722.
  • Ahmad A. L., Low S. C., Abd Shukor S. R. and Ismail, A., Preparation and Characterization of Various Membrane Morphologies for Lateral Flow Immunoassay Development, Journal of Applied Membrane Science and Technology, 5 (2007) pp. 23-29.
  • Ahmad A. L., Low S. C., Abd Shukor S. R., Ismail, A. and A.R. Sunarti, Development of Lateral Flow Membrane for Immunoassay Separation, Desalination and water treatment, 5 (2009) pp. 99-105.
  • A.L. Ahmad, C.Y. Chan, S.R. Abd Shukor, M.D. Mashitah and A.R. Sunarti, Isolation of carotenes from palm oil mill effluent and its use as a source of carotenes, Desalination and water treatment, 7 (2009) pp. 251-256.
  • A.A. Ahmad, B.H. Hameed and A.L. Ahmad, Removal of disperse dye from aqueous solution using waste-derived activated carbon: Optimization study, Journal of Hazardous Materials, 170 (2009) pp. 612-619.
  • A.L. Ahmad and C.Y. Chan, Sustainability of palm oil industries: An innovative treatment via membrane technology, Journal of Applied Sciences, 9(17) (2009) pp. 3074-3079.
  • K.K.Lau, M.Z. Abu Bakar, A.L. Ahmad and T.Murugesan, Feed spacer mesh angle : 3D modeling, simulation and optimization based on unsteady hydrodynamic in spiral wound membrane channel, Journal of Membrane Science, 343 (2009) pp. 16-33.
  • S.I.A. Razak, A.L. Ahmad, S.H.S. Zein, A.R. Boccaccini, MnO2-filled multiwalled carbon nanotube/polyaniline nanocomposites with enhanced interfacial interaction and electronic properties, Scripta MATERIALIA, 61 (2009) pp. 592-595.
  • Y.F. Yeong, A.Z. Abdullah, A.L. Ahmad, S. Bhatia, Process optimization studies of p-xylene separation from binary xylene mixture over silicalite-1 membrane using response surface methodology, Journal of Membrane Science, 341 (2009) pp. 96-108.
  • A.L. Ahmad, A.R. Sunarti, L.K. Teong, W.J.N. Fernando, Development of thin film composite for CO2 separation in membrane gas absorption application, Asia-Pacific Journal of Chemical Engineering, 4(2009) pp. 787–792.
  • A.L. Ahmad, C.P. Leo, S.R. Abd. Shukor, Statistical design of experiments for dye-salt-water separation study using bimodal porous silica/(-alumina membrane, Desalination and Water Treatment, 5 (2009) 80-90.
  • A.L. Ahmad, C.Y. Chan, S.R. Abd Shukor and M.D. Mashitah, Adsorption chromatography of carotenes from extracted oil of palm oil mill effluent, Journal of Applied Sciences, 10(21) (2010) pp. 2623 – 2627.
  • A.L. Ahmad and B.S. Ooi, A study on acid reclamation and copper recovery using low pressure nanofiltration membrane, Chemical Engineering Journal, 156(2) (2010) pp. 257-263.
  • Chew, T.L., Ahmad, A.L. and Bhatia, S.,Ordered mesoporous silica (OMS) as an adsorbent and membrane for separation of carbon dioxide (CO2),Advances in Colloid and Interface Science, 153 (2010) pp. 43-57.
  • Yeong, Y.F., Abdullah, A.Z., Ahmad, A.L. and Bhatia, S., Separation of p-xylene from ternary xylene mixture using silicalite-1membrane: Process optimization studies, Journal of Chemical Technology and Biotechnology, 85 (2) (2010) pp. 216-225.
  • Yeong, Y.F., Abdullah, A.Z., Ahmad, A.L. and Bhatia, S., Xylene isomerization kinetic over acid-functionalized silicalite-1 catalytic membranes: Experimental and modeling studies, Chemical Engineering Journal, 157(2-3) (2010) pp. 579-589.
  • Yeong, Y.F., Abdullah, A.Z., Ahmad, A.L. and Bhatia, S., Synthesis, characterization and reactive separation activity of acid-functionalized silicate-1 catalytic membrane in m-xylene isomerization, Journal of Membrane Science, 360 (1-2) (2010) pp. 109 – 122.
  • Ahmad A.L., Low S.C., Abd. Shukor S.R., Fernando, W.J.N. and Ismail, A., Hindered diffusion in lateral flow nitrocellulose membrane: Experimental and modeling studies, Journal of Membrane Science, 357 (1-2) (2010) pp. 178 – 184.
  • Sajuni, N.R., Ahmad A. L. and Vadivelu, V.M., Effect of filter media characteristics, pH and temperature on the ammonia removal in the wasterwater, Journal of Applied Sciences, 10 (12) (2010) pp. 1146 – 1150.
  • Sani, N.A.A., Ahmad A. L. and Zein, S.H.S., Preparation and properties of perovskite-dispersed titania membranes, Journal of Applied Sciences, 10 (12) (2010) pp. 1097 – 1103.
  • Lau K.K., Abu Bakar M.Z. and Ahmad A.L., Murugesan T., Effect of spacer mesh length ratio on unsteady hydrodynamics in 2D spiral wound membrane (SWM) channel, Industrial and Engineering Chemistry Research, 49 (12) (2010) pp. 5834 – 5845.
  • Chew, T.L., Ahmad A.L. and Bhatia, S., Rapid synthesis of thin SAPO-34 membranes using microwave heating, Journal of Porous Materials, 18 (2011) pp. 355-360.
  • Chan, D.J.C., Ahmad, A.L. and Chan, L.K., Improvement of biomass and juvenile hormone III (JH III) production from Cyperus aromatics cell suspension culture via in situ membrane filtration technology, Acta Physiologiae Plantarum, Vol. 32(6) (2010) pp. 1153-1159..
  • Ahmad, A.L., Chan, C.Y., Abd Shukor, S.R. and Mashitah, M.D., Optimization of carotene recovery from extracted oil of POME by adsorption chromatography using response surface methodology, Separation and Purification Technology, 73 (2) (2010) pp. 279 – 285.
  • Barzin, R., Shukor, S.R.A. and Ahmad, A.L., New spectrophotometric measurement method for process control of miniaturized intensified systems, Sensors and Actuators, B: Chemical, 146 (1) (2010) pp. 403 – 409.
  • Y.T. Ong, A.L. Ahmad, S.H.S. Zein and S.H. Tan, A review on carbon nanotubes in an environmental protection and green engineering perspective, Brazilian Journal of Chemical Engineering, 27(2) (2010), pp. 227-242.
  • A.L. Ahmad, A.R. Sunarti, K.T. Lee and W.J.N. Fernando, CO2 removal using membrane gas absorption, International Journal of Greenhouse Gas Control, 4 (3) (2010) pp. 495 – 498.
  • A.L.Ahmad, Low, E.M. and Abd Shukor, S.R., Safety Improvement and operational enhancement via dynamic process simulator: A Review, Chemical Product and Process Modeling, 5(1) (2010), Article 25.
  • W.J.N. Fernando, A.L.Ahmad and M.R. Othman, Convective drying rates of thermally blanched slices of potato (Solamum tuberosum) : Parameters for the estimation of drying rates, Food and Bioproducts Processing,89 (2010), pp. 514-519.
  • W.J.Fernando, H.C.Low and A.L.Ahmad, Dependence of the effective diffusion coefficient of moisture with thickness and temperature in convective drying of sliced materials. A study on slices of banana, cassava and pumpkin,Journal of Food Engineering, 102 (4) (2011) pp. 310 -316.
  • A.L. Ahmad, P.C. Oh and S.R.A. Shukor, Synthesis of L-homophenylalanine via integrated membrane bioreactor : Influence of pH on yield, Biochemical Engineering Journal,52 (2-3) (2010) pp. 296 – 300.
  • A.L. Ahmad, B. Koohestani and S. Bhatia and B.S. Ooi, Synthesis of vanadium oxide nanotubes via an ultrasonic method, Journal of Sol-Gel Science and Technology, 56(2010) pp. 327 – 332.
  • A.L. Ahmad, M.A.T. Jaya and C.J.C. Derek, The effects of organic binders on palladium impregnated in TiO2 membrane synthesis:X-Ray diffraction analysis, Journal of the American Ceramic Society,93(1),(2010) pp. 3595 – 3599.
  • A.L. Ahmad, Z.H. Ban and B.S. Ooi, A three-dimensional unsteady hydrodynamic profile of a reciprocating membrane channel, Journal of Membrane Science, 365(1-2) , (2010) pp. 426-437.
  • Yeong, Y.F., Abdullah, A.Z. and Ahmad, A.L. and Bhatia, S., Modeling and simulation of an acid-functionalized silicalite-1 membrane reactor for xylene isomerization, Separation and Purification Technology, 75(2), (2010), pp. 183-192.
  • S.I.A. Razak, S.H.S. Zein and A.L. Ahmad, Effect of para-hydroxybenzene sulfonic acid on the properties of ex site prepared polyaniline/multiwalled carbon nanotubes-MnO2, Nano : Brief Reports and Reviews,5(6) (2010), pp. 369-373.
  • A.L. Ahmad, B.Z. Hong and O.B. Seng, CFD modeling of rotating spiral wound membrane with corrugated spacer : Shear rate effect, Journal of Materials Science and Engineering,5(2) (2011), pp. 1-5.
  • A.L. Ahmad, N.H. Mat Yasin, C.J.C. Derek and J.K. Lim, Microalgae as a sustainable energy source for biodiesel production : A review, Renewable and Sustainable Energy Reviews, 15(1) (2011) pp. 584 – 593.
  • Ahmad, A.L., M.A. Majid, and B.S. Ooi, Functionalized PSf/SiO2 nanocomposite membrane for oil-in-water emulsion separation, Desalination, 268(1-3) (2011) pp. 266-269.
  • Ahmad, A.L., Oh, P.C. and Abd Shukor, S.R., L-homophenylalanine production by reductive amination of 2-oxo-4-phenylbutanoic acid via integrated membrane bioreactor, Journal of Materials Science and Engineering, A, 1 (2011) pp. 139-145.
  • Ahmad, A.L., Jaya, M.A.T., Derek, C.J.C. and Ahmad, M.A., Synthesis and characterization of TiO2 membrane with palladium impregnation for hydrogen separation, Journalof Membrane Science, 366(1-2) (2011), pp. 166 – 175.
  • Ong, Y.T., Ahmad, A.L., Zein, S.H.S., Sudesh, K. And Tan, S.H., Poly(3-hydroxybutyrate)-functionalised multi-walled carbon nanotubes/chitosan green nanocomposite membranes and their application in pervaporation, Separation and Purification Technology,76(3) (2011) pp. 419-427.
  • Yeong, Y.F., Abdullah, A.Z., Ahmad, A.L. and Bhatia, S., Separation of p-xylene from binary xylene mixture over silicalite-1 membrane : Experimental and modelling studies, Chemical Engineering Science, 65(5) (2011), pp. 897-906.
  • Mohan.J. and A.L. Ahmad, Synthesis and kinetic study of thermal cycloimidization of novel poly(amide amic acid) to poly(amide imide) by thermogravimetric analysis, Journal of Macromolecular Science: Part B,50(2011) pp. 1388-1401.
  • A.L. Ahmad, P.C. Oh and S.R. Abd Shukor, Synthesis of 2-oxo-4-phenylbutanoic acid: Parameter Optimization using Response Surface Methodology, Chemical Engineering Journal, 171(2) (2011) pp. 640-645.
  • A.L. Ahmad, N.A.A. Sani and S.H.S. Zein, Synthesis of a TiO2 ceramic membrane containing SrCo0.8Fe0.2O3 by the sol-gel method with a wet impregnation process for O2 and N2 permeation, Ceramics International, 37(8) (2011) pp. 2981-2989.
  • A.L. Ahmad, N.A. Abdullah Sani and S.H.S. Zein, Influence of calcinations temperature and perovskite concentration on the morphology, gas permeance and selectivity of perovskite-titania membranes, Journal of Ceramic Science and Technology, 02(01) (2011) pp. 9-14.
  • Yeong, Y.F., Abdullah, A.Z., Ahmad, A.L. andBhatia, S., Propylsulfonic acid-functionalized partially crystalline silicate-1 materials: Synthesis and characterization, Journal of Porous Materials, 18(2) (2011) pp. 147-157.
  • Chew, T.L., Ahmad, A.L. andBhatia, S., Ba-SAPO-34 membrane synthesized from microwave heating and its performance for CO2/CH4 gas separation, Chemical Engineering Journal,171(3) (2011) pp. 1053-1059.
  • Adeli, H., Zein, S.H.S., Tan, S.H., Akil, H.M. and Ahmad, A.L., Synthesis, characterization and biodegradation of novel poly(L-lactide)/multi- walled carbon nanotube porous scaffolds for tissue engineering applications, Current Nanoscience,7(3) (2011) pp. 323-332.
  • Adeli, H., Sharif Zein, S.H., Tan, S.H. and Ahmad, A.L., Optimization of the mechanical strength properties of poly(L-lactide)/ multi-walled carbon nanotube scaffolds using response surface methodology, Nano : Brief Reports and Reviews,6(2) (2011) pp. 113-122.
  • Abd Razak, S.I., Zein, S.H.S. and Ahmad, A.L., MnO2-filled multiwalled carbon nanotube/polyaniline nanocomposites: Effect of loading on the conduction properties and its percolation threshold,Nano : Brief Reports and Reviews,6(1) (2011) pp. 81-91.
  • A.L. Ahmad, B. Koohestani, S. Bhatia and B.S. Ooi, Vanadium Oxide-Based Composite Catalysts for the Oxidation of Styrene: A Comparative Study, Current Nanoscience, 7 (2011) pp. 781-789.
  • A.L. Ahmad, N.Ideris, B.S. Ooi, S.C. Low and A. Ismail, Morphology and polymorph study of a polyvinylidene fluoride (PVDF) membrane for protein binding: Effect of the dissolving temperature, Desalination,278 (2011) pp. 318-324.
  • A.L. Ahmad, A. Kusumastuti, C.J.C. Derek and B.S. Ooi, Emulsion liquid membrane for heavy metal removal: An overview on emulsion stabilization and destabilization, Chemical Engineering Journal, 171 (2011) pp. 870-882.
  • A.L. Ahmad, N.H. Mat Yasin, C.J.C. Derek and J.K. Lim, Optimization of microalgae coagulation process using chitosan, Chemical Engineering Journal,173(3) (2011) pp.879-882.
  • K.-K. Chew,S.H.S. Zein and A.L. Ahmad, Aqueous electrophoretic deposition of hydroxyapatite coatings, Journal of Science and Technology, 49(5A) (2011 ) pp. 199-207.
  • Fernando W.J.N., Low H.C. and Ahmad A.L., The effect of infrared on diffusion coefficients and activation energies in convective drying: A case study for banana, cassava and pumpkin, Journal of Applied Science, 11(21) (2011) pp. 3635-3639.
  • Low, S.C., Ahmad, A.L., Ideris, N. and Ng, Q.H., Interaction of isothermal phase inversion and membrane formulation for pathogens detection in water,Bioresource Technology, 113 (2012) pp. 219-224.
  • Yeo, C.-H., Zein, S.H.S., Ahmad, A.L. and Mcphail, D.S., Comparison of DOPA and DPPA liposome templates for the synthesis of calcium phosphate nanoshells, Ceramics International, 38 (2012) pp. 561-570.
  • Chew, K.K., Zein, S.H.S., Ahmad, A.L., McPhail, D.S. and Boccaccini, A.R., Corrosion resistance study of electrophoretic deposited hydroxyapatite on stainless steel for implant applications, Key Engineering Materials, 507 (2012) pp. 141-146.
  • Yeo, C.H., Zein, S.H.S., Ahmad, A.L. and McPhail, D.S., Investigation into the role of NaOH and calcium ion in the synthesis of calcium phosphate nanoshells, Brazilian Journal of Chemical Engineering, 29 (2012) pp. 147-158.
  • Ahmad, A.L., Ramli, W.K.W., Fernando, W.J.N. and Daud, W.R.W., Effect of ethanol concentration in water coagulation bath on pore geometry of PVDF membrane for membrane gas absorption application in CO2 removal,Separation and Purification Technology, 88 (2012) pp. 11-18.
  • Ahmad, A.L., Kusumastuti, A., Derek, C.J.C. and Ooi, B.S., Emulsion liquid membrane for cadmium removal: Studies on emulsion diameter and stability, Desalination, 287 (2012) pp. 30-34.
  • Ahmad, A.L., Yusuf, N.M. and Ooi, B.S., Preparation and modification of poly (vinyl) alcohol membrane: Effect of crosslinking time towards its morphology, Desalination, 287 (2012) pp. 35-40.
  • K.-K. Chew, S.H.S. Zein and A.L. Ahmad, The corrosion scenario in human body: Stainless steel 316L orthopaedic implants, Natural Science, 4 (2012) pp. 184-188.
  • A.L. Ahmad, B. Koohestani, S. Bhatia and B.S. Ooi,Oxidation of styrene to benzaldehyde by anhydrous hydrogen peroxide on γ-alumina-supported V2O5 nanoparticle catalysts: Optimization studies using RSM, International Journal of Applied Ceramic Technology, (2012) pp. 1-11.
  • Ahmad, A.L., Low S.C., Abd. Shukor S.R., and Ismail A., Investigating membrane morphology and quantity of immobilized protein for the development of lateral flow immunoassay, Journal of Immunoassay and Immunochemistry, 33 (2012) pp. 48-58.
  • Ooi, B.S., Yatim, N.S.M., Ahmad, A.L. and Lai, S.O., Preparation of polyvinylidene fluoride membrane via dual coagulation bath system and its wettability study, Journal of Applied Polymer Science, 124 (2012) pp. E225–E232.
  • A.L.Ahmad, N.F. Che Lah, S. Ismail and B.S. Ooi, Membrane antifouling methods and alternatives: ultrasound approach, Separation & Purification Reviews, 41 (2012) pp. 318–346.
  • Y.H. Teow, A.L. Ahmad, J.K. Lim and B.S. Ooi, Preparation and characterization of PVDF/TiO2 mixed matrix membrane via in situ colloidal precipitation method, Desalination, 295 (2012) pp. 61–69.
  • A.L. Ahmad, B. Koohestani, S. Bhatia and B.S. Ooi, An environmental friendly oxidation of styrene by anhydrous hydrogen peroxide on  -alumina-supported Vx Oy nanoparticle catalysts with the adsorption of reaction water by anhydrous MgSO4: Optimization studies using RSM, Current Nanoscience, 8 (2012) pp. 441-450.
  • J.K. Lim, Derek C.J. Chieh, S.A. Jalak, P.Y. Toh, N.H.M. Yasin, B.W. Ng and A.L. Ahmad, Rapid Magnetophoretic Separation of Microalgae, Small, 8 (2012) pp. 1683–1692.
  • N.A. Oladoja, A.L. Ahmad, O.A. Adesina and R.O.A. Adelagun, Low-cost biogenic waste for phosphate capture from aqueous system, Chemical Engineering Journal, 209 (2012) , pp. 170 – 179.
  • A.L. Ahmad, N.H. Mat Yasin, C.J.C. Derek and J.K. Lim, Crossflow microfiltration of microalgae biomass for biofuel production, Desalination, 302 (2012), pp. 65-70.
  • Leo C.P., Cathie Lee W.P., A.L. Ahmad and A.W. Wahab, Polysulfone membranes blended with ZnO nanoparticles for reducing fouling by oleic acid, Separation and Purification Technology, 89 (2012), pp. 51-56.
  • Ngang H.P., A.L. Ahmad, Low S.C. and Ooi B.S., Preparation of mixed-matrix membranes for micellar enhanced ultrafiltration based on response surface methodology, Desalination, 293 (2012), pp. 7-20.
  • Ngang H.P., Ooi B.S., A.L. Ahmad and Lai S.O., Preparation of PVDF–TiO2 mixed-matrix membrane and its evaluation on dye adsorption and UV-cleaning properties, Chemical Engineering Journal,197(2012), 359-367.
  • A.L. Ahmad, Z.A. Jawad, S.C. Low and S.H.S. Zein, Prospect of Mixed Matrix Membrane towards CO2 Separation, Journal of Membrane Science & Technology (2012) 2:3.
  • Thiam Leng Chew, Abdul Latif Ahmad& Subhash Bhatia, Microwave heating-synthesized zeolite membrane for CO2/CH4 separation, Desalination and Water Treatment, 47:1-3 (2012), pp. 139 -149.
  • Toh, Pey Yi; Yeap, Swee Pin; Kong, Li Peng; Ng, Bee Wah; Derek, Chan Juinn Chieh; Ahmad, Abdul Latif& Lim, JitKang, Magnetophoretic removal of microalgae from fishpond water: Feasibility of high gradient and low gradient magnetic separation, Chemical Engineering Journal, 211-212 (2012) pp. 22-30.
  • Yeap, Swee Pin; Ahmad, Abdul Latif; Ooi, Boon Seng & Lim, JitKang, Electrosteric Stabilization and Its Role on Cooperative Magnetophoresis of Colloidal Magnetic Nanoparticles, Langmuir, (2012) 28 (42) , pp. 14878-14891.
  • LiPeng Kong, XueJing Gan, Abdul Latif bin Ahmad, Bassim H. Hamed, Eric R. Evarts, BoonSeng Ooi, JitKang Lim, Design and synthesis of magnetic nanoparticles augmented microcapsule with catalytic and magnetic bifunctionalities for dye removal, Chemical Engineering Journal, 197 (2012), pp. 350-358.
  • Teow, Y. H., Ahmad, A. L., Lim,J.K. & Ooi,B.S.,Studies on the surface properties of mixed-matrix membrane and its antifouling properties for humic acid removal.Journal of Applied Polymer Science,(2012),1-9.
  • Teow Y.H., B.S. Ooi, A.L. Ahmad, J.K. Lim Mixed-matrix membrane for humic acid removal : Influence of different types of TiO2 on Membrane Morphology and Performance, International Journal of Chemical Engineering and Applications, (2012) 3(6) pp. 374-379.
  • A.L. Ahmad, W.K.W. Ramli, W.J.N. Fernando, W.R.W. Daud, Effect of ethanol concentration in water coagulation bath on pore geometry of PVDF membrane for Membrane Gas Absorption application in CO2 removal, Separation and Purification Technology,( 2012), (88), pp. 11-18.
  • Yeap, S.P., Toh, P.Y., Ahmad, A.L., Low, S.C., Majetich, S.A., Lim, J., Colloidal stability and magnetophoresis of gold-coated iron oxide nanorods in biological media, Journal of Physical Chemistry C, (2012), 116 (42) , pp. 22561-22569.
  • Chew KK, Zein SHS, Ahmad A. L., McPhail DS, Abdullah MF The Electrochemical Studies of the Corrosion Resistance Behaviour of Hydroxyapatite Coatings on Stainless Steel Fabricated by Electrophoretic Deposition. Journal of Industrial and Engineering Chemistry, (2012).
  • Ahmad A.L, Ramli WKW. Hydrophobic PVDF membrane via two-stage soft coagulation bath system for Membrane Gas Absorption of CO2. Separation and Purification Technology, (2013)103 pp. 230-240.
  • Ahmad A.L., E.M. Low, Abd Shukor S.R., Immobilization of phenylalanine dehydrogenase onto Eupergit CM for the synthesis of (S)-2-amino-4-phenylbutyric acid, Journal of Molecular Catalysis. B: Enzymatic, (2013), 88 pp26-31.
  • Leo CP, Ahmad Kamil NH, Junaidi MUM, Kamal SNM, Ahmad A.L. The potential of SAPO-44 zeolite filler in fouling mitigation of polysulfone ultrafiltration membrane. Separation and Purification Technology (2013), 103, pp.84-91.
  • N.A. Ahmad, C.P.Leo, Ahmad A.L. Superhydrophobic alumina membrane by steam impingement: minimum resistance in microfiltration, Separation and Purification Technology (2013) 107, pp 186-194.
  • Ahmad A.L., Adewole J.K., Ismail S., C.P. Leo, Membrane separation from natural gas: A state-of-the-art review on material development. Defect and Diffusion Forum, (2013) (333) pp 135-147.
  • C.P. Leo, M.Z. Yahya, S.N.M. Kamal, A.L. Ahmad, A.W. Mohammad, Potential of nanofiltration and low pressure reverse osmosis in the removal of phosphorus for aquaculture. Water Science and Technology (2013) 67(4) pp 831-837.
  • Junaidi, M. U. M., C. P. Leo, Kamal, S.N.M., Ahmad, A.L. & Chew, T.L. “Carbon dioxide removal from methane by using polysulfone/SAPO-44 mixed matrix membranes.Fuel Processing Technology (2013)112: 1-6.
  • Ahmad, A. L., Koohestani, B., Bhatia, S. & Ooi, B. S. Mixed matrix vanadium oxide catalytic nanocomposite membrane for styrene oxidation. Journal of Sol-Gel Science and Technology,(2013)pp. 1-15.
  • Ahmad, A. L., Ideris, N., Ooi, B. S., Low, S. C. & Ismail, A. Synthesis of polyvinylidene fluoride (PVDF) membranes for protein binding: Effect of casting thickness. Journal of Applied Polymer Science,(2013) 128, pp. 3438-3445.
  • Ahmad, A. L., Abdulkarim, A. A., Ooi, B. S. & Ismail, S. Recent Development in Additives Modifications of Polyethersulfone Membrane for Flux Enhancement. Chemical Engineering Journal, (2013) 223, pp. 246-267.
  • Ahmad, A.L., Harith N.M., Ooi B.S. & Leo C.P., Fabrication and characterization of superhydrophoic layer of low density polyethylene on polypropylene hollow fiber membrane. Caspian Journal of Applied Sciences Research, (2013) 2(4), pp.01-07.
  • Ahmad, A.L., Zeinab, A.J., S.C.Low & Sharif H.S.Z., The functionalization of beta-cyclodextrins on multi walled carbon nanotubes: Effects of the dispersant and non aqueous media. Current Nanoscience (2013), 9, pp. 93-102.
  • M.U.M.Junaidi, C.P.Leo, S.N.M.Kamal &A.L.Ahmad, Fouling mitigation in humic acid ultrafiltration using polysulfune/SAPO-34 mixed matrix membrane. Water Science & Technology (2013), 67(9) pp. 2102-2109.
  • A.L. Ahmad, Jimoh A., Leo C.P. & Suzy I., Current challenges in membrane separation of CO2 from natural gas: A Review, International Journal of Greenhouse Gas Control (2013), 17, pp.46-65.
  • S.C. Low, S. Roswani, Y. Thandaithabany, J.K. Lim, A.L. Ahmad, A. Ismail, Electrophoretic Interactions between Nitrocellulose Membranes and Proteins: Biointerface Analysis and Protein Adhesion Properties,Colloids and Surfaces B: Biointerfaces,(2013), 110, pp.248-253.
  • Abdulkarin,A.A,, Ahmad, A.L., Ismail, S., Ooi, B.S., Preparation and characterization of polyethersulfone membrane containing zinc oxide nanoparticles and polyvinylpyrrolidone. Jurnal Teknologi (Sciences and Engineering), 2013, 65 (4), pp.. 13-16.
  • Ahmad, A.L., N.H. Mat Yasin, C.J.C. Derek, and J.K. Lim, Harvesting of microalgal biomass using MF membrane: Kinetic model, CDE model and extended DLVO theory. Journal of Membrane Science, 2013. 446(0): p. 341-349.
  • Ahmad, A.L., N.H. Mat Yasin, C.J.C. Derek, and J.K. Lim, Chemical cleaning of a cross-flow microfiltration membrane fouled by microalgal biomass. Journal of the Taiwan Institute of Chemical Engineers (2014). 45(1): p. 233-241.
  • Ahmad, N.A., Leo, C.P., Ahmad, A.L. Synthesis of superhydrophobic alumina membrane: Effects of sol-gel coating, steam impingement and water treatment. Applied Surface Science (2013) 284, pp. 556-564.
  • S.N.M. Kamal, C.P. Leo, A.L. Ahmad, and M.U.M. Junaidi, Effects of THF as cosolvent in the preparation of polydimethylsiloxane/polyethersulfone membrane for gas separation. Polymer Engineering & Science (2014), 54(9): p. 2177-2186.
  • Chen,J.J., Ahmad, A.L., Ooi, B.S. Poly(N-isopropylacrylamide-co-acrylic acid) hydrogels for copper ion adsorption: Equilibrium isotherms, kinetic and thermodynamic studies. Journal of Environmental Chemical Engineering (2013), 1(3), pp. 339-348.
  • Ahmad, A.L., Z.A.Jawad, S.C.Low & S.H.S.Zein, A cellulose acetate/multi-walled carbon nanotube mixed matrix membrane for CO2/N2 separation. Journal of Membrane Science, 451 (2014), 451(0), pp 55-66.
  • Suhaimi, H.S.M., C.P. Leo, and A.L. Ahmad, Preparation and characterization of polysulfone mixed matrix membrane incorporated with palladium nanoparticles in the inversed microemulsion for hydrogen separation. Chemical Engineering and Processing: Process Intensification, 2014. 77(0): p. 30-37.
  • B.H.X. Che, S.P. Yeap, A.L. Ahmad, and J. Lim, Layer-by-layer assembly of iron oxide magnetic nanoparticles decorated silica colloid for water remediation. Chemical Engineering Journal (2014), 243: p. 68-78.
  • Junaidi, M. U. M., Leo, C. P., Ahmad, A. L., Kamal, S. N. M. & Chew, T. L. Carbon dioxide separation using asymmetric polysulfone mixed matrix membranes incorporated with SAPO-34 zeolite. Fuel Processing Technology (2014), 118, p. 125-132.
  • Suhaimi, H.S.M., L.C. Peng, and A.L. Ahmad, Preparation and Characterization of Polysulfone Mixed Matrix Membrane Incorporated with Thermodynamically Stable Nano-Palladium for Hydrogen Separation. Advanced Materials Research,(2014) 832: p. 143-148.
  • Toh, P.Y., B.W. Ng, C.H. Chong, A.L. Ahmad, J.-W. Yang, C.J. Chieh Derek, and J. Lim, Magnetophoretic separation of microalgae: the role of nanoparticles and polymer binder in harvesting biofuel. RSC Advances, (2014), 4(8): p. 4114-4121.
  • Ahmad,A.L., Yasin, N.H.M., Derek, C.J.C., Lim, J.K., Kinetic studies and thermodynamics of oil extraction and transesterification of Chlorella sp. for biodiesel production, Environmental Technology (United Kingdom) (2014), 35 (7), pp 891-897.
  • N.A. Oladoja, R.O.A. Adelagun, A.L. Ahmad, E.I. Unuabonah, and H.A. Bello, Preparation of Magnetic, Macro-Reticulated Cross-Linked Chitosan for Tetracycline Removal from Aquatic Systems. Colloids and Surfaces B: Biointerfaces (2014), 117: p. 51-59.
  • Ahmad, A.L., N.H. Mat Yasin, C.J.C. Derek, and J.K. Lim, Chemical cleaning of a cross-flow microfiltration membrane fouled by microalgal biomass. Journal of the Taiwan Institute of Chemical Engineers, 2014. 45(1): p. 233-241.
  • Ahmad, A.L., A. Kusumastuti, M.M.H. Shah Buddin, C.J.C. Derek, and B.S. Ooi, Emulsion liquid membrane based on a new flow pattern in a counter rotating Taylor-Couette column for cadmium extraction. Separation and Purification Technology (2014), 127(2014): p. 46-52.
  • H.S.M. Suhaimi, M.N.I.M. Khir, C.P. Leo, and A.L. Ahmad, Preparation and characterization of polysulfone mixed-matrix membrane incorporated with palladium nanoparticles dispersed in polyvinylpyrrolidone for hydrogen separation. Journal of Polymer Research (2014), 21(5): p. 1-8.
  • A.L. Ahmad, J.K. Adewole, C.P. Leo, A.S. Sultan, and S. Ismail, Preparation and gas transport properties of dual-layer polysulfone membranes for high pressure CO2 removal from natural gas. Journal of Applied Polymer Science (2014), 131(20): p. 40924-40934.
  • Chen, J.J., A.L. Ahmad, and B.S. Ooi, Thermo-responsive properties of poly(N-isopropylacrylamide-co-acrylic acid) hydrogel and its effect on copper ion removal and fouling of polymer-enhanced ultrafiltration. Journal of Membrane Science (2014). 469(0): p. 73-79.
  • 0B0BH. P. Ngang, A. L. Ahmad, S. C. Low, B .S. Ooi,The Influence of PEG Additive on the Morphology of PVDF Ultrafiltration Membranes and Its Antifouling Properties Towards Proteins Separation. Jurnal Teknologi (2014), 20 (2).
  • 1B1BA. L. Ahmad, K. N. Hussain, B. S. Ooi, Analysis of Oil Content in Ultrafiltered Water Based on Oil Emulsion using Fourier Transform Infrared Spectroscopy (FTIR). Jurnal Teknologi, 2014. 70 (2).
  • 2B2BP.Y. Toh, B.W. Ng, A.L. Ahmad, D.C.J. Chieh, and J. Lim, The role of particle-to-cell interactions in dictating nanoparticle aided magnetophoretic separation of microalgal cells. Nanoscale (2014), 6(21): p. 12838-12848.
  • 3B3BN.A. Oladoja, A.L. Ahmad, and A.O. Adesina, Biogenic derived binary metal oxide as a reactive material for remediation of pyrophosphate contaminated aqua system. Journal of Water Process Engineering (2014), 3(2014): p. 82-89.
  • 4B4BS.F. Azha, A.L. Ahmad, and S. Ismail, Thin coated adsorbent layer: characteristics and performance study. Desalination and Water Treatment (2014), 55(4): p. 956-969.
  • 5B5BAhmad, A.L., Harith N.M., Ooi B.S. & Leo C.P., Membrane Wetting In Carbon Dioxide Absorption Process Using Membrane Contactors: A Review (Accepted on 14 July 2014).
  • H.X. Che, S.P. Yeap, M.S. Osman, A.L. Ahmad, and J. Lim, Directed Assembly of Bifunctional Silica–Iron Oxide Nanocomposite with Open Shell Structure. ACS Applied Materials & Interfaces (2014), 6(19): p. 16508-16518.
  • T.L. Chew, A.L. Ahmad, S. Bhatia. Development of Ba-SAPO-34 Zeolite Membrane for Separation of CO2 in the Binary Gas Mixtures.Jurnal Teknologi (Sciences and Engineering) (2014), 69(6): p. 5-10.
  • S.P. Yeap, S.S. Leong, A.L. Ahmad, B.S. Ooi, and J. Lim, On Size Fractionation of Iron Oxide Nanoclusters by Low Magnetic Field Gradient. The Journal of Physical Chemistry C (2014), 118(41): p. 24042-24054.
  • T.L. Chew and A.L. Ahmad, Ba-SAPO-34 Zeolite Membrane for CO2/N2 Separation: Process Optimization. Applied Mechanics and Materials (2014) p. 648-652.
  • Che, H.X., S.P. Yeap, M.S. Osman, A.L. Ahmad, and J. Lim, Directed Assembly of Bifunctional Silica–Iron Oxide Nanocomposite with Open Shell Structure. ACS Applied Materials & Interfaces (2014), 6(19): p. 16508-16518.
  • Ahmad, A. L., Yasin, N. H. M., Derek, C. J. C. & Lim, J. K., Comparison of harvesting methods for microalgae Chlorella sp. and its potential use as a biodiesel feedstock. Environmental Technology (2014). 35(17): p. 2244-2253.
  • Ahmad, A. L., Abdulkarim, A. A., Ismail, S. & Ooi, B. S., Preparation And Characterisation Of Pes-Zno Mixed Matrix Membranes For Humic Acid Removal. Desalination And Water Treatment (2014), 54(12) :p. 1-12.
  • Z.A. Jawad, A.L. Ahmad, S.C. Low, T.L. Chew, and S.H.S. Zein, Influence of solvent exchange time on mixed matrix membrane separation performance for CO2/N2 and a kinetic sorption study. Journal of Membrane Science (2015), 476(0): p. 590-601.
  • Z.A. Jawad, A.L. Ahmad, S.C. Low, and S.H.S. Zein, Incorporation of inorganic carbon nanotubes fillersinto the CA polymeric matrix for improvement in CO2/N2 separation. Journal of Current Nanoscience (2015), 11(1): p. 69-79.
  • M.U.M. Junaidi, C.P. Leo, A.L. Ahmad, and N.A. Ahmad, Fluorocarbon functionalized SAPO-34 zeolite incorporated in asymmetric mixed matrix membranes for carbon dioxide separation in wet gases. Microporous and Mesoporous Materials (2015), 206(0): p. 23-33.
  • Y.H. Teow, A.L. Ahmad, J.K. Lim, H.P. Ngang, L.Y. Susan, and B.S. Ooi, Hydroxyl functionalized PVDF–TiO2 ultrafiltration membrane and its antifouling properties. Journal of Applied Polymer Science (2015), 132(21): p. 41844-41855.
  • Ahmad, A.L., Adewole, J. K., Leo, C. P., &Ismail, S.,Model-Based Analysis of Polymeric Membranes Performance in High Pressure CO2 Removal from Natural Gas, Journal of Polymer Research (2015), 22(3) pp.31-41.
  • N.B. Wah, A.L. Ahmad, D.C.J. Chieh, and A.T.S. Hwai, Changes in Lipid Profiles of a Tropical Benthic Diatom in different Cultivation Temperature. Asian Journal of Applied Science & Engineering (2015), 4(2): p. 11.
  • A.L. Ahmad, M.M.H. Shah Buddin, B.S. Ooi, and A. Kusumastuti, Cadmium Removal using Vegetable Oil Based Emulsion Liquid Membrane (ELM): Membrane Breakage Investigation. Jurnal Teknologi (2015), 75(1): p. 39-46.
  • Q.H. Ng, J.K. Lim, A.L. Ahmad, B.S. Ooi, and S.C. Low, Magnetic nanoparticles augmented composite membranes in removal of organic foulant through magnetic actuation. Journal of Membrane Science (2015), 493: p. 134-146.
  • A.L. Ahmad, M.M.H. Shah Buddin, and B.S. Ooi, Extraction of Cd(II) Ions by Emulsion Liquid Membrane (ELM) using Aliquat 336 as Carrier. American Journal of Chemistry (2015), 3A (5): p. 1-6.
  • N.A. Oladoja, R.O.A. Adelagun, A.L. Ahmad, and I.A. Ololade, Phosphorus recovery from aquaculture wastewater using thermally treated gastropod shell. Process Safety and Environmental Protection (2015), 98: p. 296-308.
  • G.W. Lim, J.K. Lim, A.L. Ahmad, and D.J.C. Chan, Influences of diatom frustule morphologies on protein adsorption behavior. Journal of Applied Phycology (2015), 27(2): p. 763-775.
  • G.W. Lim, J.K. Lim, A.L. Ahmad, and D.J.C. Chan, Molecularly imprinted polymer layers using Navicula sp. frustule as core material for selective recognition of lysozyme. Chemical Engineering Research and Design (2015), 101: p. 2-14.
  • A. L. Ahmad, I. Idris, C. Y. Chan and Ismail.S. Reclamation from Palm Oil Mill Effluent Using an Integrated Zero Discharge Membrane-Based Process. Polish Journal of Chemical Technology (2015).
  • J.K. Adewole, A.L. Ahmad, S. Ismail, C.P. Leo, and A.S. Sultan, Comparative studies on the effects of casting solvent on physico-chemical and gas transport properties of dense polysulfone membrane used for CO2/CH4 separation. Journal of Applied Polymer Science (2015), 132(27): p. n/a-n/a.
  • A.L. Ahmad, J.K. Adewole, C.P. Leo, S. Ismail, A.S. Sultan, and S.O. Olatunji, Prediction of plasticization pressure of polymeric membranes for CO2 removal from natural gas. Journal of Membrane Science (2015), 480(0): p. 39-46.
  • S.P. Yeap, A.L. Ahmad, B.S. Ooi, and J.K. Lim, Manipulating cluster size of polyanion-stabilized Fe3O4 magnetic nanoparticle clusters via electrostatic-mediated assembly for tunable magnetophoresis behavior. Journal of Nanoparticle Research (2015), 17(10).
  • S.F. Azha, A.L. Ahmad, and S. Ismail, A new approach of thin coated adsorbent layer for batch adsorption using basic dye. ASEAN Journal of Chemical Engineering (2015), 15(1): p. 10-21.
  • A.L. Ahmad, N. Ideris, O.B. Seng, L.S. Chun, and A. Ismail, Influence of the physicochemical environment on membrane-protein binding: Investigation using a fabricated PVDF membrane. Journal of Polymer Engineering (2015), 35(4): p. 339-347.
  • C.C. Chai, Z.H. Lee, P.Y. Toh, D.C.J. Chieh, A.L. Ahmad, and J.K. Lim, Effects of dissolved organic matter and suspended solids on the magnetophoretic separation of microalgal cells from an aqueous environment. Chemical Engineering Journal (2015), 281: p. 523-530.
  • A. L. Ahmad, H. X. Che, S. J. Gwee and J. K. Lim, Guided assembly of magnetic nanocomposite with open shell structure for water remediation. Chemical Engineering Transactions (2015), 45.
  • A. L. Ahmad, N. F. C. Lah, and S. C. Low, Molecular Imprinted Polymer for Atrazine Detection Sensor: Preliminary Study. Chemical Engineering Transactions (2015), 45.
  • L. E. F. Jun and A. L. Ahmad, Natural, Biodegradable and Non-Toxic Coagulant from g. Hylocereus Foliage: Optimisation on Coagulant Preparation. Chemical Engineering Transactions (2015), 45.
  • Y. T. Ong, A. L. Ahmad, S. H. S. Zein and H. Tan, Authors' Reply to the Letter to the Editor: Reply to "Non green perspective on biodegradable polymer nanocomposites". Brazilian Journal of Chemical Engineering (2015), 32(4): p. 976-976.
  • J. K. Adewole and A. L. Ahmad, Process modeling and optimization studies of high pressure membrane separation of CO2 from natural gas. Korean Journal of Chemical Engineering (2016).
  • A.L. Ahmad, A. A. Abdulkarim, S. Ismail and O. B. Seng, Optimization of PES/ZnO mixed matrix membrane preparation using response surface methodology for humic acid removal. Korean Journal of Chemical Engineering (2016).
  • A. L. Ahmad, N. Ideris, B. S. Ooi, S. C. Low and A. Ismail, Optimization of polyvinylidene fluoride (PVDF) membrane fabrication for protein binding using statistical experimental design. J Immunoassay Immunochem (2016), 37(4): p. 421-37.
  • A. L. Ahmad, N. Ideris, B. S. Ooi, S. C. Low and A. Ismail, Impact of membrane pore structure on protein detection sensitivity of affinity-based immunoassay. Polish Journal of Chemical Technology (2016), 18(2): p. 97-103.
  • A. L. Ahmad, M. M. H. Shah Buddin, B. S. Ooi and A. Kusumastuti, Cadmium removal from aqueous solution by emulsion liquid membrane (ELM): influence of emulsion formulation on cadmium removal and emulsion swelling. Desalination and Water Treatment (2016): p. 1-10.
  • N. A. Ahmad, C. P. Leo, A. L. Ahmad and A. W. Mohammad, Separation of CO2 from hydrogen using membrane gas absorption with PVDF/PBI membrane. International Journal of Hydrogen Energy (2016), 41(8): p. 4855-4861.
  • N. A. Ahmad, C. P. Leo, M. U. M. Junaidi and A. L. Ahmad, PVDF/PBI membrane incorporated with SAPO-34 zeolite for membrane gas absorption. Journal of the Taiwan Institute of Chemical Engineers (2016), 63: p. 143-150.
  • G. W. Lim, J. K. Lim, A. L. Ahmad and D. J. C. Chan, Fluorescent molecularly imprinted polymer based on Navicula sp. frustules for optical detection of lysozyme. Analytical and Bioanalytical Chemistry (2016), 408(8): p. 2083-2093.
  • Q. H. Ng, J. K. Lim, A. L. Ahmad and S. C. Low, Stability and fouling mechanism of magnetophoretic-actuated PES composite membrane in pH-dependent aqueous medium. Journal of Membrane Science (2016), 508: p. 40-50.
  • Y. T. Ong, A. L. Ahmad, S. H. S. Zein, K. Sudesh and S. H. Tan, Rebuttal to the comment on article “Poly(3-hydroxybutyrate)-functionalised multi-walled carbon nanotubes/chitosan green nanocomposite membranes and their application in pervaporation”. Separation and Purification Technology (2016), 158: p. 94-95.
  • S. S. Shenvi, A. M. Isloor, A. L. Ahmad, B. Garudachari and A. F. Ismail, Influence of palm oil fuel ash, an agro-industry waste on the ultrafiltration performance of cellulose acetate butyrate membrane. Desalination and Water Treatment (2016): p. 1-13.
  • P.C. Tan, S.C. Low, A.L. Ahmad, B.S. Ooi and Z.A. Jawad. “Correlation Between Polymer Packing And Gas Transport Properties For CO2/N2 Separation In Glassy Fluorinated Polyimide Membrane”. Journal of Engineering Science & Technology (2016).
  • Y. H. Teow, B. S. Ooi and A. L. Ahmad, Fouling behaviours of PVDF-TiO2 mixed-matrix membrane applied to humic acid treatment. Journal of Water Process Engineering (2016).
  • P. Y. Toh, W. Y. Tai, A. L. Ahmad, J. K. Lim and D. J. Chan, Toxicity of bare and surfaced functionalized iron oxide nanoparticles towards microalgae. Int J Phytoremediation (2016), 18(6): p. 643-50.
  • A. L. Ahmad, A. A. Abdulkarim, Z. M. H. Mohd Shafie and B. S. Ooi, Fouling evaluation of PES/ZnO mixed matrix hollow fiber membrane. Desalination (2017), 403: p. 53-63.
  • N. A. Oladoja, R. O. A. Adelagun, A. L. Ahmad and I. A. Ololade, Green reactive material for phosphorus capture and remediation of aquaculture wastewater. Process Safety and Environmental Protection (2016).
  • Chew, T.L., J.W. Lim, and A.L. Ahmad, Ba-SAPO-34 Zeolite Membrane For CO2 And N2 Permeation. Malaysian Journal Of Analytical Sciences, 2016. 20(6): p. 1397-1404.
  • Otitoju, T.A., A.L. Ahmad, and B.S. Ooi, Polyvinylidene fluoride (PVDF) membrane for oil rejection from oily wastewater: A performance review. Journal of Water Process Engineering, 2016. 14: p. 41-59.
  • Farooqui, U.R., A.L. Ahmad, and N.A. Hamid, Challenges and potential advantages of membranes in lithium air batteries: A review. Renewable and Sustainable Energy Reviews, 2016.
  • H. P. Ngang, A. L. Ahmad, S. C. Low and B. S. Ooi, Preparation of thermoresponsive PVDF/SiO2-PNIPAM mixed matrix membrane for saline oil emulsion separation and its cleaning efficiency. Desalination (2017), 408: p. 1-12.
  • Otitoju, T.A., A.L. Ahmad, and B.S. Ooi, Superhydrophilic (superwetting) surfaces: A review on fabrication and application. Journal of Industrial and Engineering Chemistry, 2017. 47: p. 19-40.
  • J. K. Adewole and A. L. Ahmad, Polymeric membrane materials selection for high-pressure CO2 removal from natural gas. Journal of Polymer Research (2017), 24(5).
  • U. R. Farooqui, A. L. Ahmad and N. A. Hamid, Effect of polyaniline (PANI) on Poly(vinylidene fluoride-co-hexaflouro propylene) (PVDF-co-HFP) polymer electrolyte membrane prepared by breath figure method. Polymer Testing (2017), 60: p. 124-131.
  • M. S. Abdul Wahab, S. Abdul Rahman and A. L. Ahmad, Biomethane Purification Using PVDF/Pebax 1657 Thin Film Composite Membrane. Journal of Physical Science (2017), 28(Suppl. 1): p. 39-51.
  • A. L. Ahmad and Z. M. H. Mohd Shafie, Effect of Air Gap Distance on PES/PVA Hollow Fibre Membrane's Morphology and Performance. Journal of Physical Science (2017), 28(Suppl. 1): p. 185-199.
  • A. L. Ahmad, S. Y. Olatunji and Z. A. Jawad, Thickness Effect on the Morphology and Permeability of CO2/N2 Gases in Asymmetric Polyetherimide Membrane. Journal of Physical Science (2017), 28(Suppl. 1): p. 201-213.
  • N. A. Ahmad, A. N. Mohd Noh, C. P. Leo and A. L. Ahmad, CO2 removal using membrane gas absorption with PVDF membrane incorporated with POSS and SAPO-34 zeolite. Chemical Engineering Research and Design (2017), 118: p. 238-247.
  • N. N. R. Ahmad, C. P. Leo, A. W. Mohammad and A. L. Ahmad, Modification of gas selective SAPO zeolites using imidazolium ionic liquid to develop polysulfone mixed matrix membrane for CO2 gas separation. Microporous and Mesoporous Materials (2017), 244: p. 21-30.
  • Z. A. Jawad, A. L. Ahmad, L. Siew Chun, E. W. Tung Seng, B. S. Chek Fong, L. Sugu and C. Thiam Leng, Binding Stability of β-CD on MWCNTS: Role of Washing Cycle on the β-CD Coating. Journal of Physical Science (2017), 28(Suppl. 1): p. 145-153.
  • T. Peng Chee, O. Boon Seng, A. L. Ahmad and L. Siew Chun, Size Control and Stability Study of Zeolitic Imidazolate Framework-8 to Prepare Mixed Matrix Membrane. Journal of Physical Science (2017), 28(Suppl. 1): p. 215-226.
  • A. Rosli, A. L. Ahmad, L. Jit Kiang and L. Siew Chun, Advances in Liquid Absorbents for CO2 Capture: A Review. Journal of Physical Science (2017), 28(Suppl. 1): p. 121-144.
  • H. S. M. Suhaimi, C. P. Leo and A. L. Ahmad, Hydrogen Purification Using Polybenzimidazole Mixed-Matrix Membranes with Stabilized Palladium Nanoparticles. Chemical Engineering & Technology (2017), 40(4): p. 631-638.
  • P. C. Tan, B. S. Ooi, A. L. Ahmad and S. C. Low, Correlating the synthesis protocol of aromatic polyimide film with the properties of polyamic acid precursor. IOP Conference Series: Materials Science and Engineering (2017), 206: p. 012049.
  • R. J. Lee, Z. A. Jawad, A. L. Ahmad, J. Q. Ngo and H. B. Chua, Improvement of CO2/N2 separation performance by polymer matrix cellulose acetate butyrate. IOP Conference Series: Materials Science and Engineering (2017), 206: p. 012072.
  • T. A. Otitoju, A. L. Ahmad and B. S. Ooi, Influence of ethanol as bore fluid component on the morphological structure and performance of PES hollow fiber membrane for oil in water separation. Korean Journal of Chemical Engineering (2017).
  • T. A. Otitoju, A. L. Ahmad and B. S. Ooi, Polyethersulfone composite hollow-fiber membrane prepared by in-situ growth of silica with highly improved oily wastewater separation performance. Journal of Polymer Research (2017), 24(8).
  • H. P. Ngang, A. L. Ahmad, S. C. Low and B. S. Ooi, Preparation of PVDF/SiO2 composite membrane for salty oil emulsion separation: Physicochemical properties changes and its impact on fouling propensity. IOP Conference Series: Materials Science and Engineering (2017), 206: p. 012083.
  • A. L. Ahmad, Y. O. Salaudeen and Z. A. Jawad, Synthesis of asymmetric polyetherimide membrane for CO2/N2 separation. IOP Conference Series: Materials Science and Engineering (2017), 206: p. 012068.
  • H. P. Ngang, A. L. Ahmad, S. C. Low and B. S. Ooi, Adsorption-desorption study of oil emulsion towards thermo-responsive PVDF/SiO 2 -PNIPAM composite membrane. Journal of Environmental Chemical Engineering (2017), 5(5): p. 4471-4482.
  • J. Y. Sum, J. J. Beh, A. L. Ahmad and B. S. Ooi, Enhancing the solvent-dendrimer miscibility at the interface and its impact on the thin film composite membrane. Journal of Industrial and Engineering Chemistry (2017).
  • N. F. Shoparwe, T. A. Otitoju and A. L. Ahmad, Fouling evaluation of polyethersulfone (PES) sulfonated cation exchange resin (SCER) membrane for BSA separation. Journal of Applied Polymer Science (2017), 135.
  • H. X. Che, S. S. Leong, W. M. Ng, A. L. Ahmad and J. Lim, Deposition Kinetics of Iron Oxide Nanoparticles on a Poly(diallyldimethylammonium Chloride)-Coated Silica Surface: Influences on the Formation of a Softer Particle-Polyelectrolyte Layer. The Journal of Physical Chemistry C (2017), 121(38): p. 20777-20789.
  • A. L. Ahmad, M. M. H. Shah Buddin, B. S. Ooi and A. Kusumastuti, Utilization of environmentally benign emulsion liquid membrane (ELM) for cadmium extraction from aqueous solution. Journal of Water Process Engineering (2017), 15: p. 26-30.
  • S. P. Yeap, J. Lim, B. S. Ooi and A. L. Ahmad, Agglomeration, colloidal stability, and magnetic separation of magnetic nanoparticles: collective influences on environmental engineering applications. Journal of Nanoparticle Research (2017), 19(11).
  • N. R. Abu Sepian, N. H. Mat Yasin, N. Zainol, N. H. Rushan and A. L. Ahmad, Fatty acid profile from immobilised Chlorella vulgaris cells in different matrices. Environ Technol (2017): p. 1-8.
  • P. C. Tan, B. S. Ooi, A. L. Ahmad and S. C. Low, Monomer atomic configuration as key feature in governing the gas transport behaviors of polyimide membrane. Journal of Applied Polymer Science (2017).
  • Z. M. H. M. Shafie and A. L. Ahmad, ZnO Nanoparticles Embedded in PES-LiCl-PVA Polymeric Matrix for Synthesis of Nanocomposite Hollow Fibre Membranes. Chemical Engineering Transactions (2017), 56.
  • S. F. Azha, A. L. Ahmad and S. Ismail, Coating paint for dyes removal: Performance and characteristic. Journal of Water Process Engineering (2017), 15: p. 18-25.
  • Y. H. Teow, B. S. Ooi and A. L. Ahmad, Study on PVDF-TiO2 mixed-matrix membrane behaviour towards humic acid adsorption. Journal of Water Process Engineering (2017), 15: p. 99-106.
  • U. R. Farooqui, A. L. Ahmad and N. A. Hamid, Graphene oxide: A promising membrane material for fuel cells. Renewable and Sustainable Energy Reviews (2018), 82: p. 714-733.
  • H. X. Che, S. J. Gwee, W. M. Ng, A. L. Ahmad and J. Lim, Design of core-shell magnetic nanocomposite by using linear and branched polycation as an ad-layer: Influences of the structural and viscoelastic properties. Colloids and Surfaces A: Physicochemical and Engineering Aspects (2018), 539: p. 209-220.
  • Z. M. H. Mohd Shafie and A. L. Ahmad, Juxtaposition of PES based hollow fiber membrane: Antifouling and antibacterial potential of LiCl mediated PVA–ZnO blend. Journal of Industrial and Engineering Chemistry (2018), 62: p. 273-283.
  • A. L. Ahmad, N. F. Che Lah and S. Ismail, Ultrasonically Aided Cross-flow Membrane Filtration for Latex Wastewater. Journal of Physical Science (2018), 29(Suppl. 1): p. 57-65.
  • A. L. Ahmad, N. F. Che Lah and L. Siew Chun, Hybrid Molecular Imprinted Polymer (MIP) Electrode for Pesticide Detection of Electrochemical Sensor. Journal of Physical Science (2018), 29(Suppl. 1): p. 33-40.
  • A. L. Ahmad, U. R. Farooqui and N. A. Hamid, Effect of graphene oxide (GO) on Poly(vinylidene fluoride-hexafluoropropylene) (PVDF- HFP) polymer electrolyte membrane. Polymer (2018), 142: p. 330-336.
  • A. L. Ahmad, A. Rosli, S. C. Low and J. K. Lim, Effects of Silica Loading on the Absorption of Carbon Dioxide by Mixed Matrix Membranes. Journal of Physical Science (2018), 29(Suppl. 1): p. 91-97.
  • N. N. R. Ahmad, C. P. Leo, A. W. Mohammad and A. L. Ahmad, Interfacial sealing and functionalization of polysulfone/SAPO-34 mixed matrix membrane using acetate-based ionic liquid in post-impregnation for CO2 capture. Separation and Purification Technology (2018), 197: p. 439-448.
  • U. R. Farooqui, A. L. Ahmad and N. Abdul Hameed, Influence of Solvent and Thickness Variation on the Performance of Poly(Vinylidene Fluoride-co-hexafluoropropylene) Polymer Membrane. Journal of Physical Science (2018), 29(Suppl. 1): p. 125-132.
  • N. F. Shoparwe, A. L. Ahmad, N. A. Ahmad and Z. M. H. Mohd Shafie, Fabrication, Characterisation and Electrochemical Properties of Heterogeneous Multiwalled Carbon Nanotubes Cation Exchange Membranes (MWCNT-CEMs). Journal of Physical Science (2018), 29(Suppl. 1): p. 41-48.
  • J. J. Chen, A. L. Ahmad, J. K. Lim and B. S. Ooi, Facile synthesis and characterization of thermo-magneto-responsive poly(N-isopropylacrylamide)-magnetite composite hydrogel and its adsorption-desorption study on chromium (III). Materials Chemistry and Physics (2018), 218: p. 39-50.
  • R. J. Lee, Z. A. Jawad, A. L. Ahmad and H. B. Chua, Incorporation of functionalized multi-walled carbon nanotubes (MWCNTs) into cellulose acetate butyrate (CAB) polymeric matrix to improve the CO 2 /N 2 separation. Process Safety and Environmental Protection (2018), 117: p. 159-167.
  • A. L. Ahmad, U. R. Farooqui and N. A. Hamid, Synthesis and characterization of porous poly(vinylidene fluoride-co-hexafluoro propylene) (PVDF-co-HFP)/poly(aniline) (PANI)/graphene oxide (GO) ternary hybrid polymer electrolyte membrane. Electrochimica Acta (2018), 283: p. 842-849.
  • N. A. Ahmad, C. P. Leo and A. L. Ahmad, Amine wetting evaluation on hydrophobic silane modified polyvinylidene fluoride/silicoaluminophosphate zeolite membrane for membrane gas absorption. Journal of Natural Gas Science and Engineering (2018), 58: p. 115-125.
  • N. Ideris, A. L. Ahmad, B. S. Ooi and S. C. Low, Correlation Study of PVDF Membrane Morphology with Protein Adsorption: Quantitative Analysis by FTIR/ATR Technique. IOP Conference Series: Materials Science and Engineering (2018), 358.
  • A. L. Ahmad, N. F. C. Lah and S. C. Low, Configuration of molecular imprinted polymer for electrochemical atrazine detection. Journal of Polymer Research (2018), 25(11).
  • S. P. Yeap, J. Lim, B. S. Ooi and A. L. Ahmad, Feasibility of Electrostatic-Mediated Post -Functionalization to Induce Long Term Colloidal Stability and Stability After Freeze Drying of Amphoteric Nanoparticles. Colloid and Interface Science Communications (2018), 23: p. 14-20.
  • A. L. Ahmad, T. A. Otitoju and B. S. Ooi, Hollow fiber (HF) membrane fabrication: A review on the effects of solution spinning conditions on morphology and performance. Journal of Industrial and Engineering Chemistry (2018).
  • A. L. Ahmad, T. A. Otitoju and B. S. Ooi, Optimization of a high performance 3-aminopropyltriethoxysilane-silica impregnated polyethersulfone membrane using response surface methodology for ultrafiltration of synthetic oil-water emulsion. Journal of the Taiwan Institute of Chemical Engineers (2018).
  • A. L. Ahmad, U. R. Farooqui and N. A. Hamid, Porous (PVDF-HFP/PANI/GO) ternary hybrid polymer electrolyte membranes for lithium-ion batteries. RSC Advances (2018), 8(45): p. 25725-25733.
  • T. A. Otitoju, R. A. Saari and A. L. Ahmad, Progress in the modification of reverse osmosis (RO) membranes for enhanced performance. Journal of Industrial and Engineering Chemistry (2018), 67: p. 52-71.
  • T. A. Otitoju, A. L. Ahmad and B. S. Ooi, Recent advances in hydrophilic modification and performance of polyethersulfone (PES) membrane via additive blending. RSC Advances (2018), 8(40): p. 22710-22728.
  • A. Kusumastuti, A. L. Ahmad, R. Syamwil and S. Anis, Enhancing Textile Dye Removal in Emulsion Liquid Membrane. Jurnal Teknologi (2018), 80:3: p. 69-76.
  • N. D. Zaulkiflee, M. M. H. S. Buddin and A. L. Ahmad, Extraction of Acetaminophen from Aqueous Solution by Emulsion Liquid Membrane Using Taylor-Couette Column. International Journal of Engineering (2018), 31(8).
  • T. L. Chew, C. K. Choy, Y. F. Yeong, J. W. Lim, A. L. Ahmad and C. D. Ho, Mesoporous Materials Synthesized by Novel Reflux Synthesis Method. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences (2018), 47(1): p. 151-158.
  • A. L. Ahmad, J. Sugumaran and N. F. Shoparwe, Antifouling Properties of PES Membranes by Blending with ZnO Nanoparticles and NMP(-)Acetone Mixture as Solvent. Membranes (Basel) (2018), 8(4).
  • T. L. Chew, Y. F. Yeong, C. D. Ho and A. L. Ahmad, Ion-Exchanged Silicoaluminophosphate-34 Membrane for Efficient CO2/N2 Separation with Low CO2 Concentration in the Gas Mixture. Industrial & Engineering Chemistry Research (2018), 58(2): p. 729-735.
  • S. A. Rahman, N. A. C. Embi, A. L. Ahmad and H. Hasbullah, Potential of Polysulfone/Polydimethyl Siloxane Thin Film Composite (PSf-PDMS-TFC) Membrane for CO2/N2 Gas Separation. IOP Conference Series: Materials Science and Engineering (2018), 440.
  • A. L. Ahmad, N. D. Zaulkiflee, A. Kusumastuti and M. M. H. S. Buddin, Removal of Acetaminophen from Aqueous Solution by Emulsion Liquid Membrane: Emulsion Stability Study. Industrial & Engineering Chemistry Research (2018), 58(2): p. 713-719.
  • A. L. Ahmad, W. Y. Pang, Z. M. H. Mohd Shafie and N. D. Zaulkiflee, PES/PVP/TiO2 mixed matrix hollow fiber membrane with antifouling properties for humic acid removal. Journal of Water Process Engineering (2019), 31.
  • N. A. Ahmad, C. P. Leo, A. L. Ahmad and M. Nur Izwanne, Swelling reduction of polyvinylidenefluoride hollow fiber membrane incorporated with silicoaluminophosphate-34 zeotype filler for membrane gas absorption. Separation and Purification Technology (2019), 212: p. 941-951.
  • N. N. R. Ahmad, C. P. Leo and A. L. Ahmad, Effects of solvent and ionic liquid properties on ionic liquid enhanced polysulfone/SAPO-34 mixed matrix membrane for CO2 removal. Microporous and Mesoporous Materials (2019), 283: p. 64-72.
  • T. A. Otitoju, B. S. Ooi and A. L. Ahmad, Synthesis of 3-aminopropyltriethoxysilane-silica modified polyethersulfone hollow fiber membrane for oil-in-water emulsion separation. Reactive and Functional Polymers (2019), 136: p. 107-121.
  • U. Reuben, A. F. Ismail, A. L. Ahmad, H. M. Maina and A. Daud, Indoor Air Quality and Sick Building Syndrome Among Nigerian Laboratory University Workers. Journal of Physical Science (2019), 30(1): p. 179-195.
  • U. Reuben, A. F. Ismail, A. L. Ahmad, H. M. Maina and A. Daud, Occupational and Environmental Risk Factors Influencing the Inducement of Erythema among Nigerian Laboratory University Workers with Multiple Chemical Exposures. Int J Environ Res Public Health (2019), 16(8).
  • A. Rosli, A. L. Ahmad and S. C. Low, Anti-wetting polyvinylidene fluoride membrane incorporated with hydrophobic polyethylene-functionalized-silica to improve CO2 removal in membrane gas absorption. Separation and Purification Technology (2019), 221: p. 275-285.
  • A. Rosli, N. F. Shoparwe, A. L. Ahmad, S. C. Low and J. K. Lim, Dynamic modelling and experimental validation of CO2 removal using hydrophobic membrane contactor with different types of absorbent. Separation and Purification Technology (2019), 219: p. 230-240.
  • J. Y. Sum, A. L. Ahmad and B. S. Ooi, Selective separation of heavy metal ions using amine-rich polyamide TFC membrane. Journal of Industrial and Engineering Chemistry (2019).
  • P. C. Tan, B. S. Ooi, A. L. Ahmad and S. C. Low, Formation of a defect-free polyimide/zeolitic imidazolate framework-8 composite membrane for gas separation: in-depth analysis of organic-inorganic compatibility. Journal of Chemical Technology & Biotechnology (2019).
  • W. Z. A. Wan Jusoh, S. Abdul Rahman, A. L. Ahmad and N. Mohd Mokhtar, Data for molecular recognition between polyamide thin film composite on the polymeric subtract by molecular dynamic. Data Brief (2019), 24: p. 103910.
  • N. Qudus, A. Kusumastuti, S. Anis and A. L. Ahmad, Emulsion liquid membrane for lead removal: Intensified low shear extraction. International Journal of Innovation and Learning (2019), 25(3): p. 285-295.
  • A. L. Ahmad, N. F. Shoparwe and N. H. E. Hanifa, Equilibrium and Kinetic Study of Bovine Serum Albumin (BSA) Adsorption onto Fabricated Polyethersulfone (PES)/Hydroxyapatite (HAP) Adsorptive Mixed Matrix Membrane (MMM). Journal of Physical Science (2019), 30(Supp.1): p. 43-63.
  • L. S. Tan, A. L. Ahmad, S. R. A. Shukor and S. P. Yeap, Impact of Solute Properties and Water Matrix on Nanofiltration of Pesticides. Chemical Engineering & Technology (2019), 42(9): p. 1780-1787.
  • M. J. Toh, P. C. Oh, T. L. Chew and A. L. Ahmad, Antiwettability enhancement of PVDF-HFP membrane via superhydrophobic modification by SiO2 nanoparticles. Comptes Rendus Chimie (2019), 22(5): p. 369-372.
  • J. J. Chen, A. L. Ahmad, J. K. Lim and B. S. Ooi, Adsorption-desorption characteristic of thermo-magneto-responsive poly(N-isopropylacrylamide)-co-acrylic acid composite hydrogel towards chromium (III) ions. Journal of Water Process Engineering (2019), 32.
  • S. H. Ding, T. Y. S. Ng, T. L. Chew, P. C. Oh, A. L. Ahmad and C. D. Ho, Evaluation of the Properties, Gas Permeability, and Selectivity of Mixed Matrix Membrane Based on Polysulfone Polymer Matrix Incorporated with KIT-6 Silica. Polymers (Basel) (2019), 11(11).
  • A. L. Ahmad, Z. Shafie, N. D. Zaulkiflee and W. Y. Pang, Preliminary Study of Emulsion Liquid Membrane Formulation on Acetaminophen Removal from the Aqueous Phase. Membranes (Basel) (2019), 9(10).
  • J. Q. Ngo, S. T. Lee, Z. A. Jawad, A. L. Ahmad, R. J. Lee, S. P. Yeap and J. Y. Sum, The influence of cellulose acetate butyrate membrane structure on the improvement of CO2/N2 separation. Chemical Engineering Communications (2019): p. 1-12.
  • N. F. Che Lah, A. L. Ahmad, S. C. Low and N. F. Shoparwe, The role of porogen-polymer complexation in atrazine imprinted polymer to work as an electrochemical sensor in water. Journal of Environmental Chemical Engineering (2019), 7(6).
  • N. D. Zaulkiflee, A. L. Ahmad, X. J. Liau and A. Kusumastuti, Juxtaposition of Polyethersulfone Composite Membranes: Performance and Antifouling Capability. Journal of Physical Science (2019), 30(Supp.2): p. 13-22.
  • M. J. Toh, P. C. Oh, A. L. Ahmad and J. Caille, Enhancing membrane wetting resistance through superhydrophobic modification by polydimethylsilane-grafted-SiO2 nanoparticles. Korean Journal of Chemical Engineering (2019), 36(11): p. 1854-1858.
  • A.L. Ahmad, M. R. Mohd Ramli and M. I. Mohamad Esham, Effect of Additives on Hydrophobicity of PVDF Membrane in Two-stage Coagulation Baths for Desalination. Journal of Physical Science (2019), 30(3): p. 207-221.
  • Z. M. H. Mohd Shafie, A. L. Ahmad, S. Rode, B. Belaissaoui, D. Roizard and S. C. Low, Prospect of Oxyplus Hollow Fibre Membrane with Dense Polymethylpentene (PMP) Skin as Support-gutter Layer of Thin Film Composite (TFC) for Biogas upgrading. Journal of Physical Science (2019), 30(Supp.2): p. 179-189.
  • W. Z. A. W. Jusoh, S. A. Rahman, A. L. Ahmad and N. M. Mokhtar, Interaction study between M-Phenylenediamine, Trimesoyl Chloride and Nylon 66 using Molecular Dynamic Simulation. IOP Conference Series: Materials Science and Engineering (2019), 702.
  • M. S. Abdul Wahab, A. R. Sunarti, N. H. Ramli and A. L. Ahmad, 24 fractional factorial design for PVDF/Pebax film composite synthesis on gas selectivity study. IOP Conference Series: Materials Science and Engineering (2019), 702.
  • W. Z. A. W. Jusoh, S. A. Rahman, A. L. Ahmad and N. M. Mokhtar, Fabrication and characterisation of a polyamide thin-film composite membrane on a nylon 6,6 substrate for isopropanol dehydration. Comptes Rendus Chimie (2019), 22(11-12): p. 755-760.
  • W. Y. Pang, A. L. Ahmad and N. D. Zaulkiflee, Antifouling and antibacterial evaluation of ZnO/MWCNT dual nanofiller polyethersulfone mixed matrix membrane. J Environ Manage (2019), 249: p. 109358.
  • M. M. H. Shah Buddin, N. D. S. Mohd Noor Salizan, A. L. Ahmad, O. S. J. Elham and A. R. Rashidi, Water-in-oil-in-water (W/O/W) emulsion instability in emulsion liquid membrane: membrane breakage. Journal of Physics: Conference Series (2019), 1349.
  • H. N. Mohammed, O. S. Lateef, G. H. Abdullah and A. L. Ahmad, CO2 stripping from diethanolamine using membrane contactors: Model validation and membrane wettability. Jurnal Teknologi (2019), 81(6).
  • W. Z. A. W. Jusoh, S. A. Rahman, A. L. Ahmad and N. M. Mokhtar, Molecular Recognition and Interaction of Polyamide Thin Film Composite on the Hydrophobic and Hydrophilic Polymeric Subtract. Materials Today: Proceedings (2019), 19: p. 1151-1158.
  • A. I. Nazri, A. L. Ahmad and M. H. Hussin, Fabrication of Microcrystalline Cellulose Incorporated Polyethersulfone Hybrid Mixed Matrix Membrane for Humic Acid Removal. Journal of Physical Science (2019), 30(Supp.2): p. 41-53.
  • M. M. H. Shah Buddin, N. A. Azrai, E. A. R. Roseli, F. Wahet and A. L. Ahmad, Kinetic Study of Cd(II) Ions Extraction Using Trioctylamine as Carrier in Bulk Liquid Membrane (BLM). Journal of Physical Science (2019), 30(2): p. 157-168.
  • R. J. Lee, Z. A. Jawad, H. B. Chua and A. L. Ahmad, Blend cellulose acetate butyrate/functionalised multi-walled carbon nanotubes mixed matrix membrane for enhanced CO2/N2 separation with kinetic sorption study. Journal of Environmental Chemical Engineering (2020), 8(5).
  • A. Rosli, A. L. Ahmad and S. C. Low, Functionalization of silica nanoparticles to reduce membrane swelling in CO2 absorption process. Journal of Chemical Technology & Biotechnology (2020), 95(4): p. 1073-1084.
  • M. K. Alsebaeai and A. L. Ahmad, Membrane distillation: Progress in the improvement of dedicated membranes for enhanced hydrophobicity and desalination performance. Journal of Industrial and Engineering Chemistry (2020), 86: p. 13-34.
  • M. J. Toh, P. C. Oh, T. L. Chew and A. L. Ahmad, Preparation of polydimethylsiloxane-SiO2/PVDF-HFP mixed matrix membrane of enhanced wetting resistance for membrane gas absorption. Separation and Purification Technology (2020), 244.
  • G. H. Teoh, P. C. Tan, A. L. Ahmad and S. C. Low, Analysis of Organic-Inorganic Compatibility to Synthesis Defect Free Composite Membrane: A Review. Journal of Membrane Science and Research (2020).
  • Z. M. H. Mohd Shafie, A. L. Ahmad, S. C. Low, S. Rode and B. Belaissaoui, Lithium chloride (LiCl)-modified polyethersulfone (PES) substrate surface pore architectures on thin poly(dimethylsiloxane) (PDMS) dense layer formation and the composite membrane's performance in gas separation. RSC Advances (2020), 10(16): p. 9500-9511.
  • Y. S. Chang, B. S. Ooi, A. L. Ahmad, C. P. Leo and W. J. Lau, Numerical study on performance and efficiency of batch submerged vacuum membrane distillation for desalination. Chemical Engineering Research and Design (2020), 163: p. 217-229.
  • T. L. Chew, S. H. Ding, P. C. Oh, A. L. Ahmad and C.-D. Ho, Functionalized KIT-6/Polysulfone Mixed Matrix Membranes for Enhanced CO2/CH4 Gas Separation. Polymers (2020), 12(10).
  • C. Jing Yi, A. L. Ahmad and L. Siew Chun, Anti-Wetting Membrane Distillation to Treat High Salinity Wastewater Review. Journal of Membrane Science & Research (2020), 6: p. 401-415.
  • A. Kusumastuti, S. Anis, A. L. Ahmad, O. Boon Seng and M. M. H. S. Buddin, Emulsion Liquid Membrane for Heavy Metals Removal: Emulsion Breaking Study. Jurnal Teknologi (2020), 82(5): p. 51-57.
  • W.-L. Tan, A. L. Ahmad, C. P. Leo and S. S. Lam, A critical review to bridge the gaps between carbon capture, storage and use of CaCO3. Journal of CO2 Utilization (2020), 42.
  • W. A. F. Wae AbdulKadir, A. L. Ahmad, O. B. Seng and N. F. Che Lah, Biomimetic hydrophobic membrane: A review of anti-wetting properties as a potential factor in membrane development for membrane distillation (MD). Journal of Industrial and Engineering Chemistry (2020), 91: p. 15-36.
  • N. D. Zaulkiflee, A. L. Ahmad, J. Sugumaran and N. F. C. Lah, Stability Study of Emulsion Liquid Membrane via Emulsion Size and Membrane Breakage on Acetaminophen Removal from Aqueous Solution Using TOA. ACS Omega (2020), 5(37): p. 23892-23897.
  • N. H. Mat Radzi and A. L. Ahmad, Effect of ZnO nanoparticles loading in double-layer polyvinylidene fluoride membrane for desalination via direct contact membrane distillation. Asia-Pacific Journal of Chemical Engineering (2020): p. e2552.
  • J. Y. Chin, G. H. Teoh, A. L. Ahmad and S. C. Low, Superhydrophobic surface coating on electrospun polypropylene membrane to treat high salinity water in membrane distillation. Water Science and Technology (2020): p. 528.
  • W.-L. Tan, H.-F. Tan, N. A. Ahmad, N. Hamzah, A. L. Ahmad and C. P. Leo, Carbon capture by alkaline absorbent using octadecyltrichlorosilane modified PVDF/TiO2 membrane. Korean Journal of Chemical Engineering (2020), 37(3): p. 505-512.
  • A. A. M. Suliman, R. Isha, M. N. A. Seman, A. L. Ahmad and J. Roslan, Mesoporous Ce-doped Ti:Ash Photocatalyst Investigation in Visible Light Photocatalytic Water Pretreatment Process. Bulletin of Chemical Reaction Engineering & Catalysis (2020), 15(2): p. 367-378.
  • A. Rosli, A. L. Ahmad and S. C. Low, Enhancing membrane hydrophobicity using silica end-capped with organosilicon for CO2 absorption in membrane contactor. Separation and Purification Technology (2020), 251.
  • K. M. W. Carolyn, M. U. M. Junaidi, N. A. Hashim, M. A. Hussain, F. Mohamed Zuki, B. Mohamed Jan, N. A. A. Nasir and A. L. Ahmad, Purification of lake water using a PES hollow fiber membrane. Water Supply (2020), 20(2): p. 529-537.
  • N. D. Zaulkiflee, A. L. Ahmad and J. Sugumaran, Stability Study on Acetaminophen Removal from Aqueous Solution using TOA via Emulsion Liquid Membrane. IOP Conference Series: Materials Science and Engineering (2020), 736.
  • M. M. H. Shah Buddin, A. L. Ahmad, A. T. Abd Khalil and S. W. Puasa, A review of demulsification technique and mechanism for emulsion liquid membrane applications. Journal of Dispersion Science and Technology (2020): p. 1-18.
  • J. Sugumaran, A. L. Ahmad and N. D. Zaulkiflee, Improvement of ionic conductivity of titanium dioxide incorporated PVDF-HFP/cellulose acetate electrolyte membrane. IOP Conference Series: Materials Science and Engineering (2020), 736: p. 052025.
  • A. A. Amusa, A. L. Ahmad and J. K. Adewole, Mechanism and Compatibility of Pretreated Lignocellulosic Biomass and Polymeric Mixed Matrix Membranes: A Review. Membranes (Basel) (2020), 10(12).
  • Y. H. Teow, B. S. Ooi, A. L. Ahmad and J. K. Lim, Investigation of Anti-fouling and UV-Cleaning Properties of PVDF/TiO2 Mixed-Matrix Membrane for Humic Acid Removal. Membranes (2020), 11(1).
  • Z. Mahyun, N. F. Shoparwe, A. Z. Abdullah, A. L. Ahmad, M. Mohamad and A. H. Yusoff, Degradation Kinetics of Humic acid in Aqueous Solution by Ozonation Treatment under Different Parameter Conditions. IOP Conference Series: Earth and Environmental Science (2020), 596.
  • G. H. Teoh, P. C. Tan, A. L. Ahmad and S. C. Low, Analysis of Organic-Inorganic Compatibility to Synthesis Defect Free Composite Membrane: A Review. Journal of Membrane Science and Research (2020).
  • N. H. Mat Radzi and A. L. Ahmad, Effect of ZnO nanoparticles loading in double‐layer polyvinylidene fluoride membrane for desalination via direct contact membrane distillation. Asia-Pacific Journal of Chemical Engineering (2020).
  • W. Z. A. W. Jusoh, S. A. Rahman, A. L. Ahmad and N. M. Mokhtar, Modifications on Polymeric Membranes for Isopropanol Dehydration Using Pervaporation: A Review, in Applications of Nanotechnology for Green Synthesis, Inamuddin and A. M. Asiri, Editors. 2020, Springer International Publishing: Cham. p. 97-124.
  • Y. S. Chang, B. S. Ooi, A. L. Ahmad, C. P. Leo and S. C. Low, Vacuum membrane distillation for desalination: Scaling phenomena of brackish water at elevated temperature. Separation and Purification Technology (2021), 254.
  • N. F. Che Lah, A. L. Ahmad and S. C. Low, Molecular imprinted membrane biosensor for pesticide detection: Perspectives and challenges. Polymers for Advanced Technologies (2021), 32(1): p. 17-30.
  • Y. S. Chang, B. S. Ooi, A. L. Ahmad, C. P. Leo, H. T. Lyly Leow, M. Z. Abdullah and N. A. Aziz, Correlating scalants characteristic and air bubbling rate in submerged vacuum membrane distillation: A fouling control strategy. Journal of Membrane Science (2021), 621.
  • A. A. Amusa, A. L. Ahmad and J. K. Adewole, Study on Lignin-Free Lignocellulosic Biomass and PSF-PEG Membrane Compatibility. Bioresources (2021), 16(1): p. 1063-1075.
  • E. I. Oluwasola, A. L. Ahmad, J. G. Robinson, S. O. Arinola and O. S. Balogun, Micronutrients profiles and nutraceutical potential of developed instant zero “Zobo” blends for a diabetics. Materials Today: Proceedings (2021).
  • S. S. Shahruddin, N. Ideris, N. F. Abu Bakar, A. L. Ahmad and N. F. C. Lah, Influence of membrane character on suppression of coffee-ring effect. Materials Today: Proceedings (2021).
  • F. A. H. Juber, Z. A. Jawad, G. H. Teoh, A. L. Ahmad and B. L. F. Chin, Development of novel blend poly (Ethylene Glycol) / Poly(Ethersulfone) polymeric membrane using N-Methyl-2-Pyrollidone and dimethylformamide solvents for facilitating CO2/N2 gas separation. Materials Today: Proceedings (2021).
  • Y. S. Chang, Y. T. Cheah, L. H. T. Lyly, N. I. I. Ishak, Y. S. Ng, A. L. Ahmad, C. P. Leo, C. J. C. Derek and B. S. Ooi, Microalgal exopolymeric substances fouling in submerged vacuum membrane distillation and its mitigation via enhanced air bubbling. Desalination (2021), 508.
  • A. A. Amusa, A. L. Ahmad and A. K. Jimoh, Enhanced Gas Separation Prowess Using Functionalized Lignin-Free Lignocellulosic Biomass/Polysulfone Composite Membranes. Membranes (Basel) (2021), 11(3).
  • W. Abdul Kadir, A. L. Ahmad and O. Boon Seng, Carnauba Wax/Halloysite Nanotube with Improved Anti-Wetting and Permeability of Hydrophobic PVDF Membrane via DCMD. Membranes (Basel) (2021), 11(3).
  • W.-L. Tan, H.-F. Tan, A. L. Ahmad and C. P. Leo, Carbon dioxide conversion into calcium carbonate nanoparticles using membrane gas absorption. Journal of CO2 Utilization (2021), 48.
  • W. A. F. Wae AbdulKadir, A. L. Ahmad and B. S. Ooi, A water-repellent PVDF-HNT membrane for high and low concentrations of oxytetracycline treatment via DCMD: An experimental investigation. Chemical Engineering Journal (2021), 422.
  • M. R. Mohd Ramli, A. L. Ahmad and C. P. Leo, Surface Modification of Polytetrafluoroethylene Hollow Fiber Membrane for Direct Contact Membrane Distillation through Low-Density Polyethylene Solution Coating. ACS Omega (2021), 6(7): p. 4609-4618.
  • I. Hassan, A. L. Ahmad, Z. M. H. Mohd Shafie and N. D. Zaulkiflee, Fabrication of polydimethylsiloxane (PDMS) dense layer on porous polyethersulfone (PES) hollow fibre membrane with varying dip coating parameters. Journal of Physical Science (2021), 32(1): p. 39-56.
  • M. R. Mohd Ramli, N. H. Mat Radzi, M. I. Mohamad Esham, M. K. Alsebaeai and A. L. Ahmad, Advanced Application and Fouling Control in Hollow Fibre Direct Contact Membrane Distillation (HF-DCMD). Arabian Journal for Science and Engineering (2021).
  • N. A. Zakaria, M. Hazwan Hussin, A. L. Ahmad, C. P. Leo, P. E. Poh, K. Behzadian, I. I. Akinwumi, A. Moghayedi and J. Diazsolano, Lignin modified PVDF membrane with antifouling properties for oil filtration. Journal of Water Process Engineering (2021), 43.
  • J. Y. Chin, G. H. Teoh, A. L. Ahmad and S. C. Low, Slippery membrane surface tuning with polypropylene coating to treat real aquaculture wastewater in membrane distillation. Sci Total Environ (2021), 794: p. 148657.
  • L. Zhou, S. H. Tan, A. L. Ahmad and S. C. Low, High‐flux strategy for electrospun nanofibers in membrane distillation to treat aquaculture wastewater: a review. Journal of Chemical Technology & Biotechnology (2021), 96(12): p. 3259-3272.
  • H. S. M. Suhaimi, C. P. Leo and A. L. Ahmad, Hydrogen separation using polybenzimidazole membrane with palladium nanoparticles stabilized by polyvinylpyrrolidone. International Journal of Energy Research (2021), 45(10): p. 15171-15181.
  • N. F. Che Lah, A. L. Ahmad, S. C. Low and N. D. Zaulkiflee, Isotherm and Electrochemical Properties of Atrazine Sensing Using PVC/MIP: Effect of Porogenic Solvent Concentration Ratio. Membranes (Basel) (2021), 11(9).
  • P. T. Chang, Q. H. Ng, A. L. Ahmad and S. C. Low, A critical review on the techno-economic analysis of membrane gas absorption for CO2 capture. Chemical Engineering Communications (2021): p. 1-17.
  • M. I. Mohamad Esham, A. L. Ahmad and M. H. D. Othman, Fabrication, Optimization, and Performance of a TiO2 Coated Bentonite Membrane for Produced Water Treatment: Effect of Grafting Time. Membranes (Basel) (2021), 11(10).
  • A. I. Nazri, A. L. Ahmad and M. H. Hussin, Microcrystalline Cellulose-Blended Polyethersulfone Membranes for Enhanced Water Permeability and Humic Acid Removal. Membranes (Basel) (2021), 11(9).
  • A. L. Ahmad, M. H. Z. Mohd Harun, M. K. Akmal Jasni and N. D. Zaulkiflee, Removal of Ibuprofen at Low Concentration Using a Newly Formulated Emulsion Liquid Membrane. Membranes (Basel) (2021), 11(10).
  • M. M. H. Shah Buddin and A. L. Ahmad, A review on metal-organic frameworks as filler in mixed matrix membrane: Recent strategies to surpass upper bound for CO2 separation. Journal of CO2 Utilization (2021), 51.
  • N. A. P. Rostam, N. H. A. H. Malim, R. Abdullah, A. L. Ahmad, B. S. Ooi and D. J. C. Chan, A Complete Proposed Framework for Coastal Water Quality Monitoring System With Algae Predictive Model. IEEE Access (2021), 9: p. 108249-108265.
  • N. D. Zaulkiflee, A. L. Ahmad and M. Yaacob, Acetaminophen Extraction Study using Vegetable Oil-Based Emulsion Liquid Membrane: The Juxtaposition of Carrier and Internal Phase. Journal of Membrane Science and Research (2021), 7(4): p. 282-287.
  • P. T. Chang, I. M. Baharuddin, Q. H. Ng, G. H. Teoh, A. L. Ahmad and S. C. Low, Creating membrane-air-liquid interface through a rough hierarchy structure for membrane gas absorption to remove CO2. International Journal of Energy Research (2021).
  • C.-H. Hong, N. N. R. Ahmad, C. P. Leo, A. L. Ahmad and A. W. Mohammad, Progress in polyvinyl alcohol membranes with facilitated transport properties for carbon capture. Journal of Environmental Chemical Engineering (2021), 9(6).
  • A. L. Ahmad, A. I. Hassan and L. C. Peng, Non-Solvent Influence of Hydrophobic Polymeric Layer Deposition on PVDF Hollow Fiber Membrane for CO2 Gas Absorption. Membranes (2021), 12(1).
  • A. L. Ahmad, O. I. Ebenezer, N. F. Shoparwe and S. Ismail, Graphene Oxide-Doped Polymer Inclusion Membrane for Remediation of Pharmaceutical Contaminant of Emerging Concerns: Ibuprofen. Membranes (2021), 12(1).
  • Y. S. Chang, A. L. Ahmad, C. P. Leo, C. J. C. Derek and B. S. Ooi, Air bubbling assisted solar-driven submerged vacuum membrane distillation for aquaculture seawater desalination. Journal of Environmental Chemical Engineering (2021), 10(1).
  • A. L. Ahmad, J. Y. Chin, M. H. Z. Mohd Harun and S. C. Low, Environmental impacts and imperative technologies towards sustainable treatment of aquaculture wastewater: A review. Journal of Water Process Engineering (2022), 46.
  • N. F. Che Lah, A. L. Ahmad, M. H. Mohd Amri and J. Y. Chin, Configuration of molecularly imprinted polymers for specific uptake of pharmaceutical in aqueous media through radical polymerization method. Journal of Polymer Research (2022), 29(2).
  • S. Q. Zaliman, N. A. Zakaria, A. L. Ahmad and C. P. Leo, 3D-imprinted superhydrophobic polyvinylidene fluoride membrane contactor incorporated with CaCO3 nanoparticles for carbon capture. Separation and Purification Technology (2022), 287.
  • N. D. Zaulkiflee, A. L. Ahmad, N. F. Che Lah and M. M. H. Shah Buddin, Removal of emerging contaminants by emulsion liquid membrane: perspective and challenges. Environ Sci Pollut Res Int (2022).
  • N. F. Che Lah, A. L. Ahmad and N. D. Zaulkiflee, Polyethersulfone ultrafiltration membranes modified with MAA-EGDMA imprinted polymers for selective atrazine separation. Journal of Water Process Engineering (2022), 47.
  • M. S. A. Abobaker, H. A. Tajarudin, A. L. Ahmad, W. M. Wan Omar and C. N. W. Chun, Municipal Landfill Leachate Treatment and Sustainable Ethanol Production: A Biogreen Technology Approach. Microorganisms (2022), 10(5).
  • N. A. Zakaria, S. Q. Zaliman, C. P. Leo, A. L. Ahmad, B. S. Ooi and P. E. Poh, 3D imprinted superhydrophobic polyvinylidene fluoride/carbon black membrane for membrane distillation with electrochemical cleaning evaluation. Journal of Environmental Chemical Engineering (2022), 10(2).
  • L. Zhou, C. L. Li, P. T. Chang, S. H. Tan, A. L. Ahmad and S. C. Low, Intrinsic microspheres structure of electrospun nanofibrous membrane with rational superhydrophobicity for desalination via membrane distillation. Desalination (2022), 527.
  • P. T. Chang, I. M. Baharuddin, Q. H. Ng, G. H. Teoh, A. L. Ahmad and S. C. Low, Creating membrane-air-liquid interface through a rough hierarchy structure for membrane gas absorption to remove CO2. International Journal of Energy Research (2022), 46(4): p. 5067-5082.
  • N. H. Mat Radzi and A. L. Ahmad, Double layer PVDF blends PVDF-HFP membrane with modified ZnO nanoparticles for direct contact membrane distillation (DCMD). Asia-Pacific Journal of Chemical Engineering (2022), 17(2): p. e2753.
  • A. L. Ahmad, N. F. Che Lah, N. A. Norzli and W. Y. Pang, A Contrastive Study of Self-Assembly and Physical Blending Mechanism of TiO2 Blended Polyethersulfone Membranes for Enhanced Humic Acid Removal and Alleviation of Membrane Fouling. Membranes (Basel) (2022), 12(2).
  • M. H. Z. Mohd Harun, A. L. Ahmad and L. Rajandram, Emulsion Liquid Membrane Screening for Ibuprofen Removal from Aqueous Solution. Journal of Physical Science (2022), 33(1): p. 109-122.
  • A. L. Ahmad, M. I. F. Zainuddin, M. M. H. Shah Buddin and Z. M. H. Mohd Shafie, Poly(4-methyl-1-pentene) Membrane for CO2 Separation: Performance Comparison of Dense and Anisotropic Membrane. Arabian Journal for Science and Engineering (2022).
  • H. G. A. Aziz, B. S. Ooi, A. L. Ahmad, Z. Ahmad, M. A. Ahmad and C. P. Leo, Phosphate Removal with pH-Responsive Calcium Carbonate Nanoparticles. Chemical Engineering & Technology (2022).
  • M. I. F. Zainuddin and A. L. Ahmad, Mixed matrix membrane development progress and prospect of using 2D nanosheet filler for CO2 separation and capture. Journal of CO2 Utilization (2022), 62: p. 102094.
  • N. A. Zakaria, S. Q. Zaliman, C. P. Leo, A. L. Ahmad, B. S. Ooi and P. E. Poh, Electrochemical cleaning of superhydrophobic polyvinylidene fluoride/polymethyl methacrylate/carbon black membrane after membrane distillation. Journal of the Taiwan Institute of Chemical Engineers (2022), 138: p. 104448.
  • W. A. F. Wae AbdulKadir, A. L. Ahmad and B. S. Ooi, Hydrophobic PVDF-HNT membrane for oxytetracycline removal via DCMD: The influence of fabrication parameters on permeability, selectivity and antifouling properties. Journal of Water Process Engineering (2022), 49: p. 102960.
  • K. Foo, Y. Y. Liang, P. S. Goh, A. L. Ahmad, D. K. Wang and D. F. Fletcher, Comparison of analytical film theory and a numerical model for predicting concentration polarisation in membrane gas separation. Chemical Engineering Research and Design (2022), 185: p. 281-290.
  • N. D. Zaulkiflee, A. L. Ahmad, S. C. Low and N. Norikazu, Recent advances on the utilization of nanosheets as electrode material for supercapacitor application. Journal of Energy Storage (2022), 55.
  • M. H. Z. M. Harun and A. L. Ahmad, Sustainable and effective contaminants transport beyond stability barrier of supported liquid membrane: How crucial and vital is the green membrane system. Journal of Water Process Engineering (2022), 49.
  • I. E. Oluwasola, A. L. Ahmad, N. F. Shoparwe and S. Ismail, Gadolinium based contrast agents (GBCAs): Uniqueness, aquatic toxicity concerns, and prospective remediation. J Contam Hydrol (2022), 250: p. 104057.
  • M. H. Z. Mohd Harun and A. L. Ahmad, Optimisation of Ibuprofen Extraction by Emulsion Liquid Membrane Using Box-Behnken Design. Journal of Physical Science (2022), 33(2): p. 95-105.
  • M. I. F. Zainuddin and A. L. Ahmad, Impact of dope extrusion rate and multilayer polydimethylsiloxane coating on asymmetric polyethersulfone hollow fiber membrane for CO2/N2 and CO2/CH4 separation. Asia-Pacific Journal of Chemical Engineering n/a(n/a): p. e2829.
  • I. E. Oluwasola, A. L. Ahmad and N. F. Shoparwe, Preliminary Study on the Stability of Self Plasticised Thin-Flat PIM for the Extraction of 2-(4-Isobutylphenyl) Propanoic Acid (Ibuprofen). Journal of Membrane Science and Research (2022), 8(4).
  • T. Y. S. Ng, V. Viriya, T. L. Chew, Y. F. Yeong, A. L. Ahmad, C. D. Ho and Z. A. Jawad, Optimization of CO2/H2 Separation over Ba-SAPO-34 Zeolite Membrane Synthesized by Microwave Heating. Membranes (Basel) (2022), 12(9).
  • N. A. Khalid, N. F. Shoparwe, A. H. Yusoff, A. Z. Sulaiman, A. L. Ahmad and N. A. Azmi, Fabrication and Characterisation of MWCNT/Polyvinyl (PVC) Polymer Inclusion Membrane for Zinc (II) Ion Removal from Aqueous Solution. Membranes (2022), 12(10): p. 1020.
  • C.-H. Hong, C. P. Leo, N. N. R. Ahmad, A. L. Ahmad and A. W. Mohammad, Polyvinyl alcohol membrane incorporated with amine-modified silica nanoparticles and ionic liquid for facilitated transport of CO2. International Journal of Greenhouse Gas Control (2022), 120.
  • F. A. Mohd Khairuddin, A. A. Rashid, C. P. Leo, G. K. Lim, A. L. Ahmad, H. M. Lim and I. C. S. Tan, Recent progress in superhydrophobic rubber coatings. Progress in Organic Coatings (2022), 171.
  • L. Zhou, H. Zhang, A. L. Ahmad, S. H. Tan, S. C. Low and C. Li, Hierarchical structure design of electrospun membrane for enhanced membrane distillation treatment of shrimp aquaculture wastewater. Separation and Purification Technology (2023), 306.
  • M. H. Z. M. Harun and A. L. Ahmad, Removal of low concentration ibuprofen using green diluent and novel formulated supported ionic liquid membrane. Journal of Environmental Chemical Engineering (2023), 11(3).
  • A. I. Nazri, A. L. Ahmad and M. H. Hussin, One-pot preparation of a carboxylated nanocrystalline cellulose from oil palm fronds as hydrophilic additive for enhancement of membrane permeability and anti-fouling properties. Journal of Water Process Engineering (2023), 52.
  • M. I. F. Zainuddin, A. L. Ahmad and M. M. H. Shah Buddin, Polydimethylsiloxane/Magnesium Oxide Nanosheet Mixed Matrix Membrane for CO2 Separation Application. Membranes (2023), 13(3).
  • K. Foo, Y. Y. Liang, W. J. Lau, M. M. R. Khan and A. L. Ahmad, Hybrid Inorganic Organic Brine Desalination Using Spiral Wound Membrane: A Parametric Study. Membranes (Basel) (2023), 13(2).
  • L. Y. Yee, Q. H. Ng, S. K. Enche Ab Rahim, P. Y. Hoo, P. T. Chang, A. L. Ahmad, S. C. Low and S. H. Shuit, A Novel Tri-Functionality pH-Magnetic-Photocatalytic Hybrid Organic-Inorganic Polyoxometalates Augmented Microspheres for Polluted Water Treatment. Membranes (Basel) (2023), 13(2).
  • S. Mansur, M. H. D. Othman, N. J. Ismail, S. H. Sheikh Abdul Kadir, M. H. Puteh, H. Abdullah, J. Jaafar, M. A. Rahman, T. D. Kusworo, A. F. Ismail and A. L. Ahmad, Hybrid Inorganic Organic PSF/Hap Dual-Layer Hollow Fibre Membrane for the Treatment of Lead Contaminated Water. Membranes (Basel) (2023), 13(2).
  • M. Buddin, A. L. Ahmad and M. I. F. Zainuddin, Prediction of CO (2) Permeance across ZIF-L@PDMS/PES Composite Membrane. Membranes (Basel) (2023), 13(2).
  • J. Y. Chin, A. L. Ahmad and S. C. Low, Graphitic carbon nitride photocatalyst for the degradation of oxytetracycline hydrochloride in water. Materials Chemistry and Physics (2023), 301.
  • J. Y. Chin, A. L. Ahmad and S. C. Low, Evolution of photocatalytic membrane for antibiotics degradation: Perspectives and insights for sustainable environmental remediation. Journal of Water Process Engineering (2023), 51.
  • E. I. Oluwasola, A. L. Ahmad and N. F. Shoparwe, Evaluation of polymer inclusion membranes based on PVC containing HDEHP as a carrier for aqueous tetracycline transportation. Journal of Water Process Engineering (2023), 52.
  • J. Y. Chin, A. L. Ahmad and S. C. Low, Antibiotics oxytetracycline removal by photocatalyst titanium dioxide and graphitic carbon nitride in aquaculture wastewater. J Environ Manage (2023), 343: p. 118231.
  • E. P. N. Ntone, S. A. Rahman, M. S. Abdul Wahab, R. A. Samah and A. L. Ahmad, A Mini Review on Membrane Potential for Pharmaceutical and Personal Care Product (PPCP) Removal from Water. Water, Air, & Soil Pollution (2023), 234(7): p. 412.
  • W. A. F. Wae AbdulKadir, A. L. Ahmad and B. S. Ooi, Hydrophobic Montmorillonite/PVDF Membrane: Experimental Investigation of Membrane Synthesis toward Wetting Characterization and Performance via DCMD. Arabian Journal for Science and Engineering (2023), 48(7): p. 8925-8940.
  • C. S. Ong, N. H. b. Zaharum, N. Mohamad Nor, A. L. Ahmad, Q. H. Ng, K. Abdul Razak and S. C. Low, Morphology and atomic configuration control of heavy metal attraction modified layer on screen-printed electrode to enhance electrochemical sensing performance. Journal of Electroanalytical Chemistry (2023), 939.
  • M. K. Alsebaeai, M. S. Ba-Shammakh, A. L. Ahmad and A. Al-shanini, Optimal Strategies of Mitigation Options for NOx Emissions in the Power Generation Industry. Chemical Engineering & Technology (2023), 46(5): p. 979-986.
  • N. D. Zaulkiflee, A. L. Ahmad, N. F. Che Lah, S. C. Low and N. Norikazu, Collation of PANI as electrode material for supercapacitor: effect of different substrate and its performances. Journal of Materials Science: Materials in Electronics (2023), 34(12): p. 1013.
  • M. M. H. Shah Buddin and A. L. Ahmad, Performance Evaluation of Supported Ionic Liquid Membranes (SILMs) Derived from Optimized PES/PDMS/ZIF-L Composites for CO2 Separation. Industrial & Engineering Chemistry Research (2023), 62(12): p. 5199-5215.
  • A. T. Abd Khalil, M. M. H. Shah Buddin, S. W. Puasa and A. L. Ahmad, Reuse of waste cooking oil (WCO) as diluent in green emulsion liquid membrane (GELM) for zinc extraction. Environmental Science and Pollution Research (2023), 30(15): p. 45244-45258.
  • M. K. Alsebaeai, A. L. Ahmad and O. B. Seng, Potential effects of nano-fumed silica particles (NFS)/PVDF mixed matrix hollow fiber membrane on the performance of direct contact membrane distillation. Asia-Pacific Journal of Chemical Engineering (2023), 18(2): p. e2859.
  • L. F. Khaw, W. S. Koh, S. P. Yeap, J. K. Lim, A. L. Ahmad, P. Y. Toh and V. Khosravi, Shape-controlled synthesis of polyaniline and its synergistic effect with reduced graphene oxide for the fabrication of flexible electrode. Polymer Engineering & Science (2023), 63(7): p. 2295-2308.
  • N. N. Tan, Q. H. Ng, S. K. Enche Ab Rahim, A. L. Ahmad, P. Y. Hoo and T. L. Chew, Synthesis of novel magneto-hybrid polyoxometalate composite membrane with simultaneous photocatalytic self-cleaning and antifouling functionalities. Frontiers of Chemical Science and Engineering (2023).
  • M. M. H. Shah Buddin, A. L. Ahmad and M. A. A. Mohd Saufi, PES/ZIF-L mixed-matrix membrane for CO2 permeation: Influence of ionic liquid in pre- and post-modification treatment. Asia-Pacific Journal of Chemical Engineering (2023), 18(1): p. e2853.
  • M. A. Adnan, M. I. F. Zainuddin and A. L. Ahmad, The Effect of Concentration on PES/NMP System on Flat Sheet Membrane Fabrication and its Performance for CO2 Gas Separation. Journal of Physical Science (2023), 34(2): p. 101-114.
  • M. Buddin, A. L. Ahmad and M. I. F. Zainuddin, Prediction of CO(2) Permeance across ZIF-L@PDMS/PES Composite Membrane. Membranes (Basel) (2023), 13(2).
  • M. K. Alsebaeai, A. L. Ahmad and O. B. Seng, Potential effects of nano-fumed silica particles (NFS)/PVDF mixed matrix hollow fiber membrane on the performance of direct contact membrane distillation. Asia-Pacific Journal of Chemical Engineering (2023), 18(2): p. e2859.
  • N. D. Zaulkiflee, A. L. Ahmad, N. F. Che Lah, S. C. Low and N. Nishiyama, Preliminary Study of Utilizing Polyaniline as Electrode Material for Supercapacitor Application: Juxtaposition of Electrochemical Performances. Malaysian Journal of Fundamental and Applied Sciences (2023), 19(4): p. 645-652.
  • M. I. Mohamad Esham, A. L. Ahmad, M. H. D. Othman and M. R. Adam, A profound investigation into the viability of calcium bentonite as a new alternative ceramic material for the development of a highly porous ceramic hollow fiber membrane for the remediation of oily produced water. Journal of the Taiwan Institute of Chemical Engineers (2023), 150.
  • J. Y. Chin, A. L. Ahmad and S. C. Low, Antibiotics oxytetracycline removal by photocatalyst titanium dioxide and graphitic carbon nitride in aquaculture wastewater. Journal of Environmental Management (2023), 343: p. 118231.
  • M. I. F. Zainuddin, A. L. Ahmad and R. R. Subramaniam, Poly(4-Methyl-1-Pentene) (PMP) with Nano Fumed Silica as Filler for CO2/N2 Gas Separation. Arabian Journal for Science and Engineering (2023), 48(12): p. 16471-16482.
  • M. H. Z. M. Harun and A. L. Ahmad, Optimization of ibuprofen and sulfamethoxazole extraction in green diluent liquid membrane using Plackett-Burman and Box Behnken designs. Journal of Molecular Liquids (2023), 390: p. 123084.
  • M. K. Alsebaeai, A. L. Ahmad and B. S. Ooi, Evaluation of anti-wetting nano-fumed silica/PVDF hollow-fiber membrane by central composite design optimization towards efficient desalination performance via membrane distillation. Journal of Chemical Technology & Biotechnology (2023), 98(12): p. 2992-3003.
  • K. Foo, W. Lin, P. S. Goh, A. L. Ahmad and Y. Y. Liang, Impact of spacer on membrane gas separation performance. Chemical Engineering Research and Design (2023), 200: p. 812-822.
  • E. Idowu Oluwasola, A. L. Ahmad, N. Fazliani Shoparwe and S. Ismail, Synergistic tetracycline removal using dual-polymers based PIM doped with graphene oxide. Materials Today: Proceedings (2023).
  • K. Adhi, A. Abdul Latif, S. Ooi Boon, C. Derek Chan Juinn, B. Meor Muhammad Hafiz Shah, A. Zaenal and A. Samsudin, Emulsion Liquid Membrane Modelling for Cadmium Removal using Taylor-Couette Column. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences (2024), 112(1): p. 155-175.
  • Z. S. Zainal, P. Hoo, A. L. Ahmad, A. Z. Abdullah, Q. Ng, S. Shuit, S. K. Enche Ab Rahim and J. Andas, Plant-based calcium silicate from rice husk ash: A green adsorbent for free fatty acid recovery from waste frying oil. Heliyon (2024), 10(4): p. e26591.
  • P. L. Kiew, N. W. C. Jusoh, K. M. Lee, A. L. Ahmad and M. M. E.-S. Nasef, Sustainable chemical engineering for circular economy. Chemical Engineering Research and Design (2024), 203: p. 441.
  • M. I. Mohamad Esham, A. L. Ahmad, M. H. D. Othman and M. R. Adam, Remediation of oily-produced water from high-salinity oilfield using a low-cost, high-alumina calcium bentonite hollow fiber membrane. Journal of Environmental Management (2024), 358: p. 120894.
  • E. Oluwasola, A. L. Ahmad and N. F. Shoparwe, GO (OH) nanocomposite enhanced PVC-based Polymer inclusion membrane: An investigation of its selectivity efficiency and chemical stability. Journal of Membrane Science and Research (2024).
  • N. Ideris, N. F. Abu Bakar, A. L. Ahmad and A. Kusumastuti, Suppression of Coffee-ring Effect (CRE) in the Development of Low-cost Diagnostic Kit. Environment-Behaviour Proceedings Journal (2024), 9(27): p. 171-176.
  • M. H. Z. Mohd Harun and A. L. Ahmad, Stability and kinetic insights for ibuprofen removal from aquaculture wastewater using green supported ionic liquid membranes. Process Safety and Environmental Protection (2024), 186: p. 289-300.
  • M. K. Alsebaeai, A. L. Ahmad and B. S. Ooi, Construction of wetting resistance surface of highly hydrophobic PVDF-HFP/rGO coated supported PVDF hollow fiber composite membrane for membrane distillation. Chemical Engineering Journal (2024): p. 152565.
  • A. L. Ahmad, M. H. Z. Mohd Harun, M. A. Kelana Putra, A. I. Hassan and M. I. F. Zainuddin, PP/PVDF Hollow Fiber Membrane Coatings for CO2 Capture: Interaction Parameters via Box-Behnken Design. Journal of Physical Science (2024) Vol. 35 Issue 2 Pages 19-32.
  • A. L. Ahmad, J. Y. Chin, A. M. Alaudin and N. F. M. Masri, Influence of TiO2 Phases and Operational Parameters on Photocatalytic Degradation of Methyl Orange. Journal of Physical Science (2024), 35(2): p. 65-82.
  • M. I. F. Zainuddin, A. L. Ahmad, M. M. H. Shah Buddin and M. A. Adnan, CO2 capture for environmental remediation with hollow fibre membrane: Impact of air gap and bore fluid ratio onto the morphology and performance. Asia-Pacific Journal of Chemical Engineering (2024).
  • S. B. Mahat, M. S. A. Abobaker, C. N. W. Chun, Y. Wibisono, A. L. Ahmad, W. M. W. Omar and H. A. Tajarudin, Scenedesmus sp. as a phycoremediation agent for heavy metal removal from landfill leachate in a comparative study: batch, continuous, and membrane bioreactor (MBR). Environmental Science and Pollution Research (2024), 31(38): p. 50443-50463.
  • M. H. Z. Mohd Harun and A. L. Ahmad, Unlocking transport mechanism of sulfamethoxazole in supported ionic liquid membrane: Insights from experimental and molecular dynamics studies. Journal of Water Process Engineering (2024), 68.
  • N. F. Che Lah, A. L. Ahmad, A. I. Nazri and N. D. Zaulkiflee, Fouling mitigation of microcrystalline cellulose-blended poly(vinylidene fluoride) membranes in protein separation. Environmental Technology (2024), p. 1-8.
  • H. Rashid Khan and A. L. Ahmad, Supercapacitors: Overcoming current limitations and charting the course for next-generation energy storage. Journal of Industrial and Engineering Chemistry (2024).
  • A.L. Ahmad, W.J.N. Fernando, Graphical Solutions in Unit Operations, Penerbit USM (2012).
  • A.L. Ahmad, A.R. Sunarti, W.J.N. Fernando, Absorption of carbon dioxide through flat sheet membranes using various aqueous liquid absorbents in “Sustainable Membrane Technology for Energy, Water and Environment”, John Wiley & Son publisher (2012) pp. 203-209.
  • A.L. Ahmad, N.A. Abdullah Sani, S.H.S. Zein,Preparation of perovskite titania ceramic membrane by sol-gel method in “Sustainable Membrane Technology for Energy, Water and Environment”, John Wiley & Son publisher (2012) pp. 95-104.
  • Y.F. Yeong, A.Z. Abdullah, A.L. Ahmad, S. Bhatia, Optimization of p-xylene separation from ternary xylene mixture over silicate-1 membrane using response surface methodology in “Sustainable Membrane Technology for Energy, Water and Environment”, John Wiley & Son publisher (2012) pp. 299-307.
  • S.R. Abd Shukor, R. Barzin, A.L. Ahmad, Computer-based control for chemical systems using LabVIEW in conjuction with MATLAB in “LABVIEW- Practical applications and solutions”, InTech (2011), ISBN 978-953-307-650-8.
  • G. Najafpour, N. Hilal, A.L. Ahmad (2007), Membrane separation processes in “Biochemical Engineering and Biotechnology”, Elsevier, pp. 351-389.
  • A.L. Ahmad, Synthesis of nanofiltration composite polyamide membrane using monomeric diamines mixture and its performance evaluation in “Fundamental Research at USM 2002 – 2005”, Volume 1 (Physical Sciences), Eds.: Abd. Aziz Tajuddin and Lim Koon Ong (2006), ISBN 9838613177, 175-179.
  • J.J. Chen, A.L. Ahmad and B.S. Ooi (2013), Removal of Copper from Aqueous Solution by Using Thermo-responsive Polymer Hydrogel as Copper Chelator via Polymer-enhanced Ultrafiltration (PEUF) in “Wastewater Engineering Advanced Wastewater Treatment System”, International Journal of Scientific Research Book, pp. 183-192.
  • Q. H. Ng, J. K. Lim, A. L. Ahmad, B. S. Ooi, S. C. Low (2014), Studying the role of magnetite (Fe3O4) colloids functionality on PES membrane in removing of humic acid foulant using QCM-D in “Membrane Technology for Sustainable Applications: Recent Progress and Challenges”, Taylor & Francis Group.
  • A. L Ahmad, Ideris N., S. C. Low (2014), Adsorptive Membranes for Diagnostic Kit Assemblies in Supporting Technologies for the Development of New Sustainable Diagnostic Methods.
  • A. L. Ahmad, Y. O. Salaudeen and Z. A. Jawad (2019), Polymeric Membrane for Flue Gas Separation and Other Minor Components in Carbon Dioxide Capture in “Membrane Technology for CO2 Sequestration”, Taylor & Francis Group.
  • R. J. Lee, Z. A. Jawad, A. L. Ahmad, H. B. Chua, H. P. Ngang, S. H. S. Zein (2019), Rheological evaluation of the fabrication parameters of cellulose acetate butyrate membrane on the CO2/N2 separation performance in “Membrane Technology for CO2 Sequestration”, Taylor & Francis Group.
  • R.j. Lee, Z.a. Jawad, Abdul Latif Bin Ahmad, H.b. Chua, (2023), Chapter 3 – ”Chemical, physical, and morphological characteristics of nanomaterials for CO2 capture and conversion”, in Nanomaterials for Carbon Dioxide Capture and Conversion Technologies, Elsevier Ltd.
  • A. L. Ahmad, M. I. F. Zainuddin and M. M. H. Shah Buddin, 15 - Polymeric membranes for natural gas sweetening, in Advances in Natural Gas: Formation, Processing, and Applications. Volume 2: Natural Gas Sweetening, M. R. Rahimpour, M. A. Makarem and M. Meshksar, Editors. 2024, Elsevier. p. 419-452.
  • H. R. Khan, A. L. Ahmad, A. Shuja Syed, I. Murtaza, B. Rafique and A. Dawood, Material for Microbial Electrolysis Cell: Design to Reactor Configuration, in Microbial Electrolysis Cell Technology: Fundamental to Sustainable Applications, A. A. Yaqoob and A. Ahmad, Editors. 2024, Springer Nature Singapore: Singapore. p. 37-60.
  • H. R. Khan, A. L. Ahmad, A. Shuja Syed, I. Murtaza, S. Batool and A. Dawood, Electrochemical and Theoretical Concepts of Microbial Electrolysis Cells, in Microbial Electrolysis Cell Technology: Fundamental to Sustainable Applications, A. A. Yaqoob and A. Ahmad, Editors. 2024, Springer Nature Singapore: Singapore. p. 93-119.