Article
Engineering, Chemical
Zhiwei Du, Jinxue Cheng, Qinglin Huang, Mingxing Chen, Changfa Xiao
Summary: A high performance preoxidized poly(acrylonitrile) (O-PAN) nanofiber membrane with excellent solvent resistance, thermal stability, and flexibility was fabricated. The performance of the membrane was optimized by altering the PAN concentration and preoxidation temperature. The O-PAN nanofiber membrane showed excellent separation performance for SiO2 particles and oil/water separation.
CHINESE JOURNAL OF CHEMICAL ENGINEERING
(2023)
Article
Engineering, Chemical
Pengxin Shen, Junbin Liao, Quan Chen, Huimin Ruan, Jiangnan Shen
Summary: The study focused on developing organic solvent resistant cation exchange membranes (CEMs) with high ion exchange capacities and good electrochemical performance, which showed promising potential for application in electrodialysis (ED) for organic solvent solution systems.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Chemical
Shabin Mohammed, Hanaa M. Hegab, Ranwen Ou
Summary: In this study, the efficient combination of cellulose nanofibers and graphene oxide was demonstrated to produce membranes with excellent nanofiltration performance.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2022)
Article
Nanoscience & Nanotechnology
Tao Liu, Zhipeng He, Huichao Liu, Jinglong Yang, Shuo Zhang, Jiali Yu, Muwei Ji, Caizhen Zhu, Jian Xu
Summary: This study successfully fabricated high-performance heat-resistant solid-state supercapacitors for flexible and wearable electronics, based on PPTA fibers and composite fibers with excellent electrochemical performance, mechanical strength, and durability, meeting the requirements of flexibility and wearability for electronic devices.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Engineering, Chemical
Keng Siang Goh, Yunfeng Chen, Jeng Yi Chong, Tae Hyun Bae, Rong Wang
Summary: The study successfully developed a thin-film composite membrane with excellent performance and stability for pharmaceutical concentration and solvent recovery. The membrane, after cross-linking treatment and synthesis of thin-film composite through interfacial polymerization, was solvent-activated to enhance permeability. In experiments, the membrane showed good permeability and rejection rates for acetone and methyl red.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Chemical
Duc Hoa Tran, Mathias Ulbricht
Summary: Research and development towards sustainable chemistry involves the development of new materials and exploration of new fabrication methods. In this study, composite membranes made from biodegradable cellulose were fabricated using a simple and scalable process. The use of dimethylsulfoxide as impregnation liquid improved the membrane separation performance and lamination strength. The thickness of the barrier layer could be reduced to a few micrometers, and the membrane performance could be adjusted by varying the cellulose concentration and co-solvent fraction. The cellulose-cellulose composite membranes showed potential as a sustainable alternative material for various separations.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Engineering, Chemical
Chao Han, Qin Liu, Qing Xia, Yan Wang
Summary: A novel facile cyclization modification of PAN nanofiber substrate was proposed for the fabrication of TFC-OSN membrane, demonstrating high solvent permeance and resistance. The modified PAN nanofiber substrate supported TFC-OSN membrane exhibits potential industrial applications with good permeance and resistance in organic solvent systems.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Environmental
Chinmoy Bhuyan, Achyut Konwar, Prarthana Bora, Parashmoni Rajguru, Swapnali Hazarika
Summary: Petroleum industry wastewater contains high levels of harmful substances, posing a threat to the environment. This study successfully designed a superhydrophilic and organic solvent resistant nanocomposite membrane, which can effectively treat wastewater containing organic pollutants, and has good separation performance and thermal stability.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Review
Environmental Sciences
Dan Ren, Shuping Ren, Yakai Lin, Jianhong Xu, Xiaolin Wang
Summary: Applications of solute purification, solvent recovery, and solvent separation in organic solvents are expanding in chemical industries, pharmaceuticals, and food processing. Membrane separation technology offers fast and efficient separations. Novel materials and preparation methods have enabled the development of organic solvent resistant membranes.
Article
Chemistry, Physical
Yue Gao, Qing-Bo Meng, Bao-Xin Wang, Yu Zhang, Hui Mao, Da-Wei Fang, Xi-Ming Song
Summary: Poly(ionic liquid)s nanofiber membrane modified with photocatalyst PW12 has been successfully synthesized and demonstrated excellent degradation efficiency for organic dye under visible light. The nanofiber membrane morphology provides good recyclability.
Article
Chemistry, Applied
Hongbin Li, Tengfei Li, Wenying Shi, Yin Tian, Jie Liu, Xiaohong Qin
Summary: By embedding PPTA/PSF microparticles into the PA composite layer of PSF hollow fiber membrane, the dye adsorption properties of the membrane were improved. The PPTA-embedded HFC membrane showed enhanced surface roughness, hydrophilicity, and electronegativity, resulting in increased dye adsorption capacity. These prepared PPTA-embedded hollow fiber composite membranes could potentially be used for treating textile dyeing wastewater.
REACTIVE & FUNCTIONAL POLYMERS
(2022)
Article
Engineering, Chemical
Junbin Liao, Jingwen Xu, Huimin Ruan, Junjie Mu, Xu Jie, Wei Li, Yanqing Xu, Jiangnan Shen
Summary: A series of ion exchange membranes with 3D network structure and good organic solvent resistance have been successfully prepared for application in organic solution systems.
Article
Materials Science, Composites
Yuexi Chen, Chunjie Xie, Shixuan Yang, Ran He, Yongyi Guo, Zhao-Xia Guo, Baohua Guo, Teng Qiu, Xinlin Tuo
Summary: A facile method is reported for the preparation of high performance all-para-aramid paper by impregnating heterocyclic aramid (HA) solution into a para-aramid paper (PAP). The HA molecules effectively act as a binder for both types of PPTA fibers, greatly enhancing the interfacial adhesion between fibers and densifying the paper structure. The resulting HA-impregnated PAPs exhibit much better mechanical properties, including significantly improved tensile strength and internal bond strength.
COMPOSITES SCIENCE AND TECHNOLOGY
(2023)
Article
Engineering, Chemical
Yuanxiao Li, Mengqi Shi
Summary: Reverse osmosis (RO) membrane technology based on interfacial polymerization (IP)-synthesized polyamide (PA) RO membrane is a leading water treatment technology. This study proposes the use of iron (III) acetylacetonate as a means to control solvent activation and improve the performance of PA RO membranes. The results demonstrate that iron (III) acetylacetonate effectively controlled solvent activation and enhanced the membrane performance.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Chemical
Yuehua Zhang, Peng Xu, Xianfu Chen, Minghui Qiu, Yiqun Fan
Summary: In this study, a defect-free polyamide (PA) layer was directly prepared on a tubular alumina ceramic membrane to overcome the selectivity loss issue of thin-film composite (TFC) nanofiltration (NF) membranes in harsh conditions. The resulting organic-inorganic composite membrane exhibited high water permeance and good rejection to Na2SO4, as well as excellent compaction resistance and performance stability.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Environmental
Lelin Zeng, Feixiang Zhou, Rong Hu, Wanyun Xie, Guoxiang Wang, Caixia Yang, Enxiang Liang, Wenyuan Xu, Bart Van der Bruggen
Summary: A cross-linked copolymer of vinyl acetate and acrylic acid was synthesized and reacted with ethanol to prepare a crosslinked carboxyl modified polyvinyl alcohol. The hydrogel showed selective adsorption of Cu(II) in competition with Cd(II) and Ni(II), with promising kinetics and equilibrium adsorption characteristics for Cu(II) ion. Thermodynamic studies indicated the adsorption process for Cu(II) ion was spontaneous and exothermic.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2021)
Editorial Material
Chemistry, Multidisciplinary
Bart Van der Bruggen
Summary: One of the sustainable development goals set by the United Nations is to ensure the availability and sustainable management of water and sanitation for all, which requires investment in water purification technologies. World Water Day provides an opportunity to discuss whether such investments will help achieve this admirable goal.
NATURE REVIEWS CHEMISTRY
(2021)
Article
Nanoscience & Nanotechnology
Lei Xia, Yan Zhao, Xi Zhang, Yangbo Qiu, Jiahui Shao, Raf Dewil, Bart Van der Bruggen, Xing Yang
Summary: This study proposes a new design strategy for ion exchange membranes, utilizing ionic control strategy and ZIF framework to enhance the transport and separation of target ions. Experimental results demonstrate that the S@ZIF-AMX membrane significantly improves the separation efficiency and permselectivity of PO43-/Cl- and SO42-/Cl- in electrodialysis.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Review
Biotechnology & Applied Microbiology
Rana Mahdavi Far, Bart Van der Bruggen, Arne Verliefde, Emile Cornelissen
Summary: This review assesses the potential of zeolite particles incorporated into polymeric membranes for improving membrane performance. Zeolites have extensive potential in separation processes due to their unique frameworks and properties. Studies have shown that incorporating zeolite particles can enhance permeability, increase mechanical strength, and improve resistance to fouling and chlorine in membranes.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2022)
Article
Engineering, Chemical
Xin Zhang, Pengrui Jin, Daliang Xu, Junfeng Zheng, Zi-Ming Zhan, Qieyuan Gao, Shushan Yuan, Zhen-Liang Xu, Bart van der Bruggen
Summary: Triethanolamine modification improves the performance of PEI/TMC NF membranes in removing heavy metal ions from contaminated water, with increased permeance and high rejection rates for various metals.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Environmental
Yan Zhao, Wenjing Lu, Natalie Mamrol, Tim Croes, Zhaohuan Mai, Sofie Houtmeyers, Raf Dewil, Yang Zhang, Xing Yang, Bart Van der Bruggen
Summary: This paper reports a novel anion exchange membrane based on Kevlar amide nanofiber (KANF) for fluoride capture. The membrane is fabricated through the embedding and self-assembly of hydroxypropyltrimethyl ammonium chloride chitosan (HACC) into the KANF-based hydrogel framework, and further sulfonated to enhance fluoride selectivity. The resulting membranes show low surface resistance and exceptional desalination efficiency, outperforming commercial membranes. They also exhibit resistance to fouling deposition and superior stability.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Green & Sustainable Science & Technology
Yangbo Qiu, Long-Fei Ren, Jiahui Shao, Lei Xia, Yan Zhao
Summary: This study aims to validate the deep removal of fluoride from high fluoride-containing wastewater by using an integrated precipitation/crystallization/ultrafiltration/reverse osmosis system. The results demonstrate that the system can achieve an extremely low residual fluoride concentration that meets the World Health Organization standard.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Engineering, Chemical
Yanqing Xu, Guibing Peng, Wenfei Li, Yuying Zhu, Zhaohuan Mai, Natalie Mamrol, Junbin Liao, Jiangnan Shen, Yan Zhao
Summary: The aligned composite membranes were fabricated by incorporating amino-polystyrene nanospheres (APN) into the KANF matrix, which significantly improved solvent permeability and molecular sieving.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Environmental
Yangbo Qiu, Long-Fei Ren, Lei Xia, Changmei Zhong, Jiahui Shao, Yan Zhao, Bart Van der Bruggen
Summary: A resource capture ultrafiltration-bipolar membrane electrodialysis (RCUF-BMED) system was designed for simultaneous capture and recovery of fluoride and silica from wastewater, achieving zero liquid discharge. The optimized system showed efficient selective capture and recovery, with high purity of the product.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Engineering, Chemical
Yansu Lan, Die Zhou, Longhuan Lai, Huanhuan Qi, Lei Xia, Stef Depuydt, Bart Van der Bruggen, Yan Zhao
Summary: Membrane technology has great potential in bromide recovery, and a class of novel anion exchange membranes (AEMs) fabricated through chemical substitution reaction showed better performance in bromide recovery and higher selectivity.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Review
Chemistry, Multidisciplinary
Chao Wu, Lei Xia, Shengji Xia, Bart van der Bruggen, Yan Zhao
Summary: Membrane technology has great potential in liquid waste treatment and resource recovery. However, the non-adjustable pore size of traditional membranes limits their selectivity for target ions. Covalent organic frameworks (COFs) have emerged as a promising candidate for advanced ion separation membranes due to their low density, large surface area, tunable channel structure, and tailored functionality. This review analyzes and summarizes the progress in understanding ion capture mechanisms, preparation processes, and applications of COF-based membranes, providing promising approaches for the design, preparation, and application of COF-based membranes in ion selectivity for recovery of ionic resources.
Article
Engineering, Chemical
Yue Shen, Jingyuan Zhou, Bin Wu, Mengni Ge, Naixin Wang, Yan Zhao, Quan-Fu An, Bart Van der Bruggen
Summary: A zwitterionic NF membrane with anti-scaling performance was fabricated through the incorporation of multi-carboxyl carboxylate (sodium citrate) by interfacial polymerization. The resulting NF membrane showed a more negatively charged surface and a larger pore size, leading to a high selectivity in desalination. This design strategy provides guidance for the development of highly ion selective anti-scaling NF membranes.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Environmental Sciences
Yangbo Qiu, Stef Depuydt, Long-Fei Ren, Changmei Zhong, Chao Wu, Jiahui Shao, Lei Xia, Yan Zhao, Bart Van der Bruggen
Summary: Toxic ions from industrial wastewater pose significant environmental challenges. Ultrafiltration (UF), which has low operation pressure and high permeability, is commonly used for separating macromolecules and suspended solids. However, direct separation of ions from wastewater using UF is not possible due to the large pore size of UF membranes. Recent advancements in UF membrane design and integrated UF processes have expanded the application of UF for ion removal. This review summarizes the latest developments in UF membrane preparation and integrated processes for ion removal, including the use of advanced materials and various integrated UF-based processes.
Article
Environmental Sciences
Yansu Lan, Yicheng Huang, Die Zhou, Xi Zhang, Lei Xia, Raf Dewil, Bart Van der Bruggen, Yan Zhao
Summary: This study synthesized a class of internally cross-linked anion exchange membranes (QPSF-n AEMs) for the recovery of carboxylates from fermentation broth. The resulting membrane (QPSF-0.88) exhibited high anion exchange capacity and selectivity in the electro-dialysis process, effectively removing acetate, oxalate, and citrate. Additionally, the membrane showed high resistance to pH changes after immersion in acidic or basic solutions.