Article
Polymer Science
Wentao Xu, Huaqiang Zhuang, Wenjie Chen, Wei Liu, Xiaoyang Pan
Summary: By using PAA-catalyzed in-situ COF synthesis method to apply COF-PAA modifier on PVDF membranes, the water flux, rejection rate, and antifouling properties can be improved, with a reduced leaching rate of PAA. The tight bonding of COF to PAA on the membrane surface contributes to enhanced stability and antifouling properties.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Polymer Science
Alexander Pozdnyakov, Nadezhda Kuznetsova, Anastasia Ivanova, Yuliya Bolgova, Tatyana Semenova, Olga Trofimova, Artem Emel'yanov
Summary: New heat-resistant functional copolymers of poly(VT-co-BTMSI) with varying compositions were synthesized and characterized in this study. The copolymers exhibited high reactivity and a spongy surface, with an increase in molecular size as the VT content increased. Furthermore, hydrolysis of the synthesized poly(VT-co-BTMSI) resulted in a functional copolymer with supramolecular structures.
Article
Polymer Science
V. B. Athira, Smita Mohanty, S. K. Nayak
Summary: The objective of this study was to develop specialty polymeric membranes based on polyethersulfone (PES) and analyze the effect of hydrophilic polymers on membrane properties. The researchers successfully controlled the morphology and porosity of the membranes by adjusting coagulation conditions and additive concentrations. The optimized formulations showed excellent biocompatibility, reduced protein adsorption, increased blood clotting time, and good hydrophilicity.
JOURNAL OF POLYMER RESEARCH
(2022)
Article
Environmental Sciences
Haddadi Majid, Nima Heidarzadeh, Vahid Vatanpour, Ahmad Dehqan
Summary: In this study, the surface of reverse osmosis (RO) membranes was modified using the synergistic effect of hydrophilic polymer and graphene oxide (GO). The optimized membranes showed improved performance in terms of flux, rejection, and antifouling efficiency.
Article
Polymer Science
Ionela-Amalia Bradu, Titus Vlase, Madalin Bunoiu, Madalina Gradinaru, Alexandru Pahomi, Dorothea Bajas, Mihaela Maria Budiul, Gabriela Vlase
Summary: This study presents the synthesis of membranes based on anionic polysaccharides and cationic polysaccharides for transdermal delivery of methotrexate. The membranes suitable for the release of the active ingredient were validated through characterization.
Article
Biochemistry & Molecular Biology
Shuxiu Wang, Jinsong Zeng, Pengfei Li, Jinpeng Li, Bin Wang, Wenhua Gao, Jun Xu
Summary: In this study, a high-strength broad-spectrum antibacterial CNF/CS composite membrane was successfully fabricated by utilizing cellulose nanofibers to reinforce the structure of chitosan. The resulting composite membrane showed impressive strength, stability, and chlorine rechargeability, while also exhibiting rapid sterilization, sustained release of active chlorine, and efficient inhibition of biofilm formation.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Polymer Science
Reema H. Alasfar, Viktor Kochkodan, Said Ahzi, Nicolas Barth, Muammer Koc
Summary: This study prepared polysulfone (PSF) membranes with different loadings of cellulose nanofibers (CNFs) using the phase inversion method and investigated the pore morphology, mechanical properties, membrane performance, and hydrophilicity. The results showed that the addition of CNFs improved the mechanical properties, water fluxes, and hydrophilicity of the membranes. The optimal loading of 0.3 wt.% CNF enhanced the elastic modulus, yield stress, and resistance to compaction. CNFs were found to be homogeneously dispersed within the PSF matrix at CNF loading less than 0.5 wt.%.
Article
Engineering, Chemical
Jinghao Zhang, Yang Jiao, Yingjie Zhang, Kai Wang, Xiao Sui, Dan Song, Enrico Drioli, Xiquan Cheng
Summary: In this study, the hydrophilicity of PLA hollow-fiber membranes was improved by modifying the phase inversion process with Tween-80 and PVP-K30 as coadditives. The modified membranes showed significantly increased water permeance and excellent antifouling performance, offering a potential alternative to conventional polymer membranes for water remediation.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Review
Polymer Science
Viatcheslav Freger, Guy Z. Ramon
Summary: The discovery of polyamide membranes made by interfacial polymerization revolutionized large-scale desalination and made desalinated water affordable to millions of people. Understanding the complex molecular and nanostructure of these membranes poses challenges, but recent research has made progress in this area. Further studies are needed to fully understand the performance and potential improvements of polyamide thin films.
PROGRESS IN POLYMER SCIENCE
(2021)
Article
Polymer Science
Rashed Al Mizan, Md. Aminul Islam
Summary: This study focuses on developing a nanocomposite containing carbon and alumina particles, showing significant improvements in thermal behavior with the alumina-rich composite having a relative ratio of 2:3 demonstrating better thermal conductivity.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Review
Materials Science, Multidisciplinary
Adnan Murad Bhayo, Yang Yang, Xiangming He
Summary: Polymer brushes are thin films consisting of polymer chains attached to a solid interface by one end. These highly branched polymers exhibit unique characteristics and properties compared to their linear counterparts, making them widely used in fields such as drug delivery and tissue engineering. Surface-initiated controlled radical polymerization has provided a robust method to tailor the chemical and physical properties of surfaces and interfaces, leading to significant innovations in surface and interface engineering.
PROGRESS IN MATERIALS SCIENCE
(2022)
Article
Polymer Science
Jihua Duan, Guichang Jiang
Summary: A novel physically crosslinked polyurethane (PUII) based on isophorone diisocyanates was successfully prepared and characterized. The PUII exhibited various self-assembly morphologies and showed enhanced antibacterial effect when supplemented with an antibacterial agent. Additionally, the antimicrobial polyurethane films displayed good mechanical properties.
Article
Polymer Science
Alitzel Belem Garcia-Hernandez, Eduardo Morales-Sanchez, Georgina Calderon-Dominguez, Ma de la Paz Salgado-Cruz, Reynold Ramon Farrera-Rebollo, Miguel Angel Vega-Cuellar, Arturo Garcia-Borquez
Summary: The physicochemical, structural, and thermal properties of electrospun membranes depend on process conditions and the type and concentration of raw materials. Membranes synthesized using electrospinning with hydrolyzed collagen and polyvinyl alcohol were characterized, showing that morphology is mainly influenced by the polymer/solvent system properties and distance to the collector. Thicker samples with smaller fiber diameters, high porosity percentages, and suitable water vapor permeability values were formed at the furthest distance.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Polymer Science
Junqi Mei, Xue Lei, Mei Liang, Hang Wu, Shengtai Zhou, Huawei Zou, Yang Chen
Summary: In this research, carbon nanotubes filled polypropylene and polyamide 6 composites were prepared by melt blending and molded by compression molding and microinjection molding. The electrical conductivity of microparts fabricated by microinjection molding shifted to higher filler concentrations compared to compression molded counterparts, indicating unfavorable shearing conditions. Raman spectral analysis showed preferential alignment of CNTs along flow direction in microparts, while mechanical properties were greatly affected by filler concentration, possibly due to structural changes induced by CNT dispersion.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Run Zhang, Xiaoyu Zhao, Wenhao Li, Huidong Qian, Hui Yang
Summary: Alkali-resistant metal-based cationic polyelectrolytes are developed as anion exchange membranes by grafting aminocobaltocene hexafluorophosphates onto partially fluorinated ether-free poly(arylene-alkane)s via nucleophilic substitution reaction. The membrane shows excellent chemical, thermal, and mechanical stability, high hydroxide conductivity, and durability of single cells for 400 hours.
CHEMICAL COMMUNICATIONS
(2023)
Article
Polymer Science
Targol Hashemi, Mohammad Reza Mehrnia, Aydin Marandi, Ahmad Fauzi Ismail
Summary: Novel mixed matrix membranes were prepared using magnetic casting and nanocomposite technology, resulting in increased water flux and improved anti-fouling properties.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Muhammad Ayub, Mohd Hafiz Dzarfan Othman, Mohd Zamri Mohd Yusop, Imran Ullah Khan, Zhong Sheng Tai, Siti Khadijah Hubadillah
Summary: Recycling palm oil fuel ash (POFA) into holey graphene nanosheets offers a sustainable and greener approach to address environmental pollution. This research focuses on studying the effects of temperature and ratio of potassium hydroxide (KOH) on the production of porous graphene sheets with optimized conditions found at 800 degrees C and a 1:3 impregnation ratio. The resulting graphene nanosheets have uniform porosity and comparable surface area, pore volume, and carbon percentage to previous findings using other biomass sources.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Yanuardi Raharjo, Ahmad Fauzi Ismail, Mohd Hafiz Dzarfan Othman, Mochamad Zakki Fahmi, Saiful, Djoko Santoso, Mochamad Ifan Nugroho, Diana Merna, Maipha Deapati Arief, Risma Chikita Pratama
Summary: This study aimed to develop a novel imprinted zeolite (IZC) and incorporate it into a polyethersulfone (PES) and poly(vinyl pyrrolidone) (PVP) mixed matrix membrane (HF-MMM) for hemodialysis treatment. The optimized parameters showed that this membrane has the potential to effectively remove uremic toxins.
Article
Biochemistry & Molecular Biology
Sumarni Mansur, Mohd Hafiz Dzarfan Othman, Nurul Jannah Ismail, Siti Hamimah Sheikh Abdul Kadir, Mohd Hafiz Puteh, Huda Abdullah, Juhana Jaafar, Mukhlis A. A. Rahman, Tutuk Djoko Kusworo, Ahmad Fauzi Ismail, Abdul Latif Ahmad
Summary: This study improved the performance of the polysulfone/HAP dual-layer hollow fiber membrane (DLHF) by incorporating hydroxyapatite particles derived from waste cockle shell. Microscopic analysis confirmed the successful incorporation of HAP into the outer layer of the membrane. The optimized DLHF membrane exhibited enhanced pure water flux, permeability, and lead adsorption capacity at the optimum loading of 30 wt% HAP, making it a cost-effective approach for treating lead-contaminated water.
Article
Environmental Sciences
Noresah Said, Woei Jye Lau, Muhammad Nidzhom Zainol Abidin, Amir Mansourizadeh, Ahmad Fauzi Ismail
Summary: In this study, poly(citric acid)-grafted graphene oxide (PGO) was incorporated into single-layer hollow fiber (SLHF) and dual-layer hollow fiber (DLHF) membranes to improve their antifouling properties during water treatment. The optimized PGO loading of 0.7 wt% in SLHF membrane resulted in higher water permeability and bovine serum albumin rejection compared to the neat membrane. Similarly, introducing 0.7 wt% PGO only to the outer layer of DLHF membrane improved its antifouling properties and increased the rejection rate of bovine serum albumin to 97.7%.
ENVIRONMENTAL TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Mohd. Shahrizan Moslan, Mohd. Hafiz Dzarfan Othman, Hazirah Syahirah Zakria, Nurul Jannah Ismail, Suhaila Borhamdin, Mukhlis A. Rahman, Juhana Jaafar, Mohd. Hafiz Puteh, Norbaya Hashim, Nirmala Devi A. P. Kerisnan, Nasehir Khan E. M. Yahaya, Alias Idris
Summary: Discharging the endocrine-disrupting compound BPA into water bodies has negative impacts on public health and the ecosystem. A novel ternary photocatalyst, MoO3/ZnO/GO, consisting of molybdenum trioxide, zinc oxide, and graphene oxide, was synthesized to efficiently degrade BPA under visible light radiation. This photocatalyst showed significant degradation efficiency and energy storage capability, making it a potential material for EDC removal in wastewater treatment.
JOURNAL OF MATERIALS SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
A. Sumisha, G. Arthanareeswaran, A. F. Ismail
Summary: This study mainly focuses on the analysis of casein protein transport characteristics through ultrafiltration membranes. Polysulfone-based polymer membranes modified with different materials are used. The experimental results show that the transport of casein is controlled by convection.
SEPARATION SCIENCE AND TECHNOLOGY
(2023)
Article
Engineering, Chemical
Komathi Kannathasan, Juhana Jaafar, Nuor Sariyan Suhaimin, Nurul Natasha Mohammad Jafri, Sadaki Samitsu, N. H. Alias, A. F. Ismail, T. Matsuura, M. H. D. Othman, Mukhlis A. Rahman, Farhana Aziz, Norhaniza Yusof, Mohammed Rasool Qtaishat, M. I. Ismail
Summary: A novel method of fabricating translucent photocatalytic membrane using a modified morphological structure as a photocatalyst has been developed. The study highlights the effect of translucency on the efficiency of photocatalytic reactions.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2023)
Review
Materials Science, Ceramics
Najib Meftah Almukhtar Omar, Mohd Hafiz Dzarfan Othman, Zhong Sheng Tai, Muhend Milad, Mohd Nazri Mohd Sokri, Mohd Hafiz Puteh
Summary: Ceramic membranes show great potential for industrial applications due to their excellent stability and resistance to harsh conditions. However, limitations such as brittleness, high costs, and fouling still hinder their commercial scale-up. This review focuses on recent progress and strategies to overcome these limitations, including the use of alternative materials, improving mechanical strength, and mitigating fouling. Despite technical advancements, these limitations persist, highlighting the need for future research directions.
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2023)
Review
Green & Sustainable Science & Technology
Ojo Samuel, Mohd Hafiz Dzarfan Othman, Roziana Kamaludin, Hazlini Dzinun, Aniqa Imtiaz, Tao Li, Tijjani El-badawy, Asmat Ullah Khan, Mohd Hafiz Puteh, Erna Yuliwati, Tonni Agustiono Kurniawan
Summary: Oilfield-produced water (OPW) contains a complex mixture of toxic organic and inorganic compounds, including refractory polycyclic aromatic hydrocarbons (PAHs) and polyaromatic hydrocarbons such as BTEX, which have become a global concern. The treatment of OPW is challenging due to the presence of harmful pollutants combined with oil and the generation of recalcitrant by-products. This article critically reviews the feasibility of heterogeneous photocatalysis for OPW treatment, presents the nature and health implications of these compounds, and evaluates pilot and commercial-scale applications of photocatalysis in water treatment.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Engineering, Environmental
Nor Akalili Ahmad, Lih Jang Tam, Pei Sean Goh, Nurfirzanah Azman, Ahmad Fauzi Ismail, Khairulnadzmi Jamaluddin, Gangasalam Arthanareeswaran
Summary: In this study, a thin film composite (TFC) reverse osmosis (RO) membrane with high long-term stability and antifouling properties was developed by spray coating the polyamide (PA) layer with oppositely charged titania nanosheets (TNS). The manufactured membranes showed improved permeability and radionuclide rejection, making them suitable for treating radionuclide-containing wastewater. The findings highlight the potential of tailored TFC RO membranes in the treatment of radioactive wastewater.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Multidisciplinary Sciences
Noor Fauziyah Ishak, Nur Hidayati Othman, Najihah Jamil, Nur Hashimah Alias, Fauziah Marpani, Munawar Zaman Shahruddin, Lau Woei Jye, Ahmad Fauzi Ismail
Summary: Modifying polymeric membranes using ZIF-8 functionalized-2D nanofillers showed improved gas permeability and selectivity performance. The rGO/ZIF-8 and MoS2/ZIF-8 nanofillers were successfully synthesized and characterized. Addition of 10 wt% of each nanofiller to the PES solution resulted in MMMs with enhanced thermal stability. Compatibility between the 2D nanofillers and PES matrix was confirmed by FTIR and XRD analysis. The obtained MMMs exhibited significantly improved gas separation properties, demonstrating the potential of using 2D nanofillers for high-performance membranes.
PERTANIKA JOURNAL OF SCIENCE AND TECHNOLOGY
(2023)
Article
Engineering, Environmental
Nurul Syazana Fuzil, Nur Hidayati Othman, Nur Hashimah Alias, Fauziah Marpani, Muhammad Shafiq Mat Shayuti, Munawar Zaman Shahruddin, Mohd Rizuan Mohd Razlan, Norazah Abd Rahman, Woei Jye Lau, Mohd Hafiz Dzarfan Othman, Ahmad Fauzi Ismail, Tutuk Djoko Kusworo, Anwar Ul-Hamid
Summary: In this study, the performance of membrane distillation (MD) was improved by coating MoS2-TiO2 on a PVDF-based hollow fiber membrane. The MoS2-TiO2/PP20 membrane showed enhanced hydrophobicity and porosity, leading to significantly improved MD performances. This work suggests that the MoS2-TiO2 coating can overcome the typical permeability/rejection rate trade-off effect and play a significant role in enhancing MD performances.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Review
Engineering, Environmental
Nur Fajrina, Norhaniza Yusof, Ahmad Fauzi Ismail, Farhana Aziz, Muhammad Roil Bilad, Meshel Alkahtani
Summary: This article summarizes recent developments in membrane technology tailored for biogas upgrading, including the structure and classification of membrane materials as well as effective approaches to overcome the trade-off between permeability and selectivity. Additionally, other challenges are comprehensively discussed, and future research required to tackle biogas upgrading issues is projected.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)