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Novel activated biochar-enhanced superhydrophilic nanofibrous membrane for superior oil-in-water emulsion separation J. Membr. Sci. (IF 9.5) Pub Date : 2024-03-18 Mehdi Faraji, Majid Saidi, Majid Abdouss
In this research, a high-performance Polyamide 6/Polyvinyl Alcohol/Activated biochar (PA6/PVA/AB) composite nanofibrous membrane was developed for effective separation of oil-in-water emulsions. The membrane was produced by blend electrospinning of Polyamide 6 (PA6), Polyvinyl Alcohol (PVA), and Activated biochar (AB) derived from peanut shell biomass. Glutaraldehyde (GA) cross-linking was applied
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Design of anti-fouling membranes via prebiotic chemistry-inspired aminomalononitrile (AMN) coating strategy: Aldehyde-mediated chemical immobilization of pseudo-zwitterionic compounds J. Membr. Sci. (IF 9.5) Pub Date : 2024-03-16 Pengtao Gao, Pak Wai Wong, Jianjun Huang, Samuel Eyley, Laurens A. J. Rutgeerts, Wim Thielemans, Wim Dehaen, Alicia Kyoungjin An, Xing Yang
Although zwitterionic polymers were extensively explored for anti-fouling surface modification, the resulting significant loss in membrane permeability is undesirable. Assisted by co-deposition of aminomalononitrile (AMN) and terephthalaldehyde (TA), in this study a high-performance membrane with low fouling propensity was designed via chemical immobilization of a novel pseudo-zwitterionic compound
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Insights of membrane fouling under scale inhibitor synergistic condition monitored by ultrasonic phased array: Fouling spatial and density characteristics J. Membr. Sci. (IF 9.5) Pub Date : 2024-03-16 Zhiyang Cheng, Xia Meng, Yating Wang, Fangong Kong, Hui Jia, Jie Wang
Achieving accurate dosing of scale inhibitors in full reverse osmosis (RO) membrane systems for industrial applications is a critical challenge due to a lack of understanding of membrane fouling characteristics. To address this, this study investigated membrane performance at different inhibitor concentrations and proposed a method using ultrasonic phased arrays (UPA) to evaluate the fouling layer's
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High chemical stability poly(oxindole biphenylene)/ZrO2 porous separator for alkaline water electrolysis J. Membr. Sci. (IF 9.5) Pub Date : 2024-03-16 Hongjing Li, Min Liu, Bin Hu, Xu Hu, Meizi He, Junhao Xin, Chengyuan Niu, Yingda Huang, Nanwen Li, Zushun Xu, Quanyuan Zhang
Porous separators are essential for alkaline electrochemical energy technologies, such as alkaline water electrolyzers (AWEs). These separators are promising alternatives to dense membranes because they offer the potential for low cost and high ionic conductivity. However, two significant challenges in developing efficient and durable alkaline energy systems are the suppression of hydroxide ions-induced
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Soluble Troger’s base-based polybenzimidazoles containing naphthalene units with improved phosphoric acid tolerance for use as high-temperature proton exchange membranes J. Membr. Sci. (IF 9.5) Pub Date : 2024-03-16 Junming Dai, Jianming Zhong, Jinpeng Luo, Yu Zhang, Chunli Gong, Yinhua Wan, Yongbing Zhuang
Most Troger's base (TB)-based polymers reported for high-temperature proton exchange membranes (HT-PEMs) exhibit low phosphoric acid (PA) tolerance due to excessive swelling in PA solution. In this work, a novel dicarboxylic acid monomer containing both naphthalene and TB units (TB-N-COOH) was successfully synthesized, and the corresponding TB-based PBI homopolymer (TB-N-HPBI) was prepared for HT-PEM
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Multistage membrane-integrated zero liquid discharge system for ultra-efficient resource recovery from steel industrial brine: Pilot-scale investigation and spatial membrane fouling J. Membr. Sci. (IF 9.5) Pub Date : 2024-03-16 Xiaoqian Liu, Jiaying Ma, Enchao Li, Jiandong Zhu, Huaqiang Chu, Xuefei Zhou, Yalei Zhang
Zero liquid discharge (ZLD) strategy provides significant potential for industrial brine treatment. Still, the application has been constrained by the inadequate water recovery and membrane fouling of its membrane-based brine concentration system. Herein, a pilot-scale system was established that integrated pretreatment, reverse osmosis (RO), nanofiltration (NF), and disk tube reverse osmosis (DTRO)
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A novel hydrophilic modification method for polytetrafluoroethylene (PTFE) hollow fiber membrane using sacrificial template J. Membr. Sci. (IF 9.5) Pub Date : 2024-03-16 Weiyao Wang, Xiaoqin Huang, Mingyuan Wu, Qingyun Wu, Jianjun Yang, Jiuyi Liu, Jianan Zhang
In order to enhance the hydrophilicity of PTFE hollow fiber membrane, high concentration of polymer was needed during the modifying process, but this method resulted in severe pore blockage of hollow fiber membrane with reduced water flux. Herein, we resolve the above contradiction by using cross-linkable poly (vinylpyrrolidoneγ-methacryloxypropyltrimethoxysilane) (P (VP-KH570)) as hydrophilic polymer
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Highly permeable and selective polymer inclusion membrane for Li+ recovery and underlying enhanced mechanism J. Membr. Sci. (IF 9.5) Pub Date : 2024-03-15 Wenyu Shen, Duo Wang, Yuhe Tian, Fang Zhou, Yanyu Lin, Ziyun Zhang, Junbo Xu, Chao Yang
Polymer inclusion membrane (PIM) has become a potential alternative in efficient Li separation from brines typically with Mg and Li, due to its exceptional stability and selectivity. However, the practical application of PIMs is still greatly restricted by its slow mass transfer and related unclear transport mechanism. Here, we fabricated an efficient PIM with tributyl phosphate (TBP) along with sodium
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Mixed matrix membranes with incorporated glycosaminoglycans have good blood biocompatibility combined to high toxin removal J. Membr. Sci. (IF 9.5) Pub Date : 2024-03-14 DooLi Kim, Maria Margalef, Marissa Maciej-Hulme, Edwin Kellenbach, Mark de Graaf, Dimitrios Stamatialis, Johan van der Vlag
Most patients in need of renal replacement therapy use peritoneal or hemodialysis (HD) therapy. Major drawbacks of HD are the incomplete removal of uremic solutes (especially middle-sized uremic solutes and protein-bound uremic solutes, PBUTs) as well as the non-continuous therapy (3 times per week for 4 h), causing large fluctuations in water balance and uremic waste, potassium, and phosphate. For
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Corrigendum to “Superhydrophobic polydimethylsiloxane dip-coated polycaprolactone electrospun membrane for extracorporeal membrane oxygenation”[J. Membr. Sci. 679 (2023) 121715] J. Membr. Sci. (IF 9.5) Pub Date : 2024-03-14 Zhuomin Jiang, Bao Tran Duy Nguyen, JeongHyeon Seo, Changgi Hong, Dongwoo Kim, Suhyun Ryu, Sohui Lee, Gyubok Lee, Young Hoon Cho, Jeong F. Kim, Kangwon Lee
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Thermally induced phase separation PVDF membrane fabricated by using NaCl coagulation bath: Relation of membrane surface morphology and permeation performance J. Membr. Sci. (IF 9.5) Pub Date : 2024-03-13 Ningyuan Chen, Jie Zhao, Lei Shi, Atsushi Goto, Rong Wang
Efforts have been made in thermally induced phase separation (TIPS) process to modify the morphology of polyvinylidene fluoride (PVDF) membranes in order to improve their permeation performance and mechanical properties. Nevertheless, many methods not only altered the outer surface but also impacted the overall membrane structure, resulting in a trade-off between permeability and mechanical properties
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Statistical thermodynamics to assess probability of water channel formation in membrane J. Membr. Sci. (IF 9.5) Pub Date : 2024-03-13 Kira Lewis, Takeshi Matsuura
In this work, the probability of water channel formation was calculated for several polymeric materials, and with that information, the desalination capacity of each material was assessed. Using a 3D lattice model for a flat sheet, the Gibbs free energy change ( that results from the formation of the first water channel from the top to the bottom surface of the sheet was calculated as a function of
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Modelling of selective ion partitioning between ion-exchange membranes and highly concentrated multi-ionic brines J. Membr. Sci. (IF 9.5) Pub Date : 2024-03-13 Giorgio Purpura, Ewa Papiewska, Andrea Culcasi, Antonia Filingeri, Alessandro Tamburini, Maria Chiara Ferrari, Giorgio Micale, Andrea Cipollina
In recent years, the growing interest in the use of Ion-exchange membranes, in the treatment of highly concentrated multi-ionic brines for the selective recovery of critical elements, has prompted the research of fundamental models capable of predicting the IEMs selectivity towards like-charged species. Prior studies have proposed ion partitioning models limited to single-salt solutions that were validated
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High-performance SPEEK composite membrane with ultrahigh selectivity enabled by sulfonated PANI for vanadium flow battery J. Membr. Sci. (IF 9.5) Pub Date : 2024-03-13 Shuai Jiang, Yahui Li, Haixia Wang, Lang Li, Qiaoqiao Wei, Haifeng Shi
The sulfonated poly(ether ether ketone) (SPEEK) composite membranes (S/SPANI) are prepared by blending sulfonated polyaniline (SPANI), which was synthesized through a post-sulfonation method. With the SPANI contents varying from 1 to 4 wt%, the S/SPANI membranes exhibit excellent physicochemical properties and cell performance, and at loading 3 wt% SPANI, S/SPANI-3 presents a higher proton conductivity
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Synergistic approach to high-performance ultra-thin supported Pd-based membranes: Sacrificial graphene oxide interlayer and vacuum-assisted dip-coating J. Membr. Sci. (IF 9.5) Pub Date : 2024-03-12 Edoardo Magnone, Jeong In Lee, Min Chang Shin, Xuelong Zhuang, Jae Yeon Hwang, Sung Woo Han, Jung Hoon Park
Pd-based membranes are essential for the separation of hydrogen, and the performances of these membranes are largely determined by their thickness. In this study, a sacrificial graphene oxide (GO) interlayer and vacuum-assisted (V) dip-coating process were used synergistically to prepare ultra-thin Pd–Ag–Cu-based membranes that were deposited on an ultra-thin γ-AlO film-coated porous α-AlO hollow fiber
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Dextran sulfate bulk and surface-modified microfiltration membrane for simultaneous blood plasma harvesting and low-density lipoprotein removal during plasmapheresis J. Membr. Sci. (IF 9.5) Pub Date : 2024-03-12 Rahim Dehghan, Jalal Barzin, Ruben G. Carbonell, Hamidreza Ghaderi Jafarbeigloo, Zahra Kordkatooli
Plasmapheresis is currently used for the harvesting of blood plasma in medical labs and plasma donation centers. This is a fast, single-step membrane process for both collection of blood plasma and simultaneous blood cell isolation. This paper presents the development of a novel membrane that can be used to simultaneously harvest blood plasma and isolate low-density lipoprotein (LDL), known as bad
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Two-dimensional lamellar stacking COF membrane with charge repulsion effect for ions separation J. Membr. Sci. (IF 9.5) Pub Date : 2024-03-12 Zhi Li, Jingrui Fan, Lu Wang, Xiubei Yang, Long Guo, Huiling Chen, Dian Gong, Guiping Yang, Qing Xu, Shiyang Zou, Gaofeng Zeng
Billions of people are suffering from a shortage of clean water. Covalent organic frameworks (COFs) based membranes show promise in supplying clean water from saline waters due to their designable and controllable porous structures. However, the challenge lies in the rejection of salt ions during the pervaporation process, which is attributed to the relatively large pore size of COFs. Herein, we report
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Cerium based metal-organic framework as the efficient radical quencher for proton exchange membrane fuel cells J. Membr. Sci. (IF 9.5) Pub Date : 2024-03-12 Kangwei Xu, Guipeng Liu, Xiaojun Xu, Zhihui Wang, Gaochong Liu, Feng Liu, Yongming Zhang, Yongfeng Zhou, Yecheng Zou, Supeng Pei
Durability is one of the most key problems for the widespread commercialization of proton exchange membrane fuel cells (PEMFCs). Proton exchange membranes (PEMs) are pivotal components of the PEMFCs and their chemical stability is thus an important for the PEMFCs reliability. The incorporation of Ce-based radical quenchers such as ceria in PEMs can obviously alleviate the chemical deterioration of
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Controlled architecture of multi-defense anti-fouling forward osmosis membrane for efficient shale gas wastewater treatment J. Membr. Sci. (IF 9.5) Pub Date : 2024-03-12 Caihong Liu, Rui Gao, Xiaoyue Zhang, Tiezheng Tong, Qiang He, Jun Ma
Forward osmosis (FO) membrane process facilitates effective treatment of shale gas wastewater (SGW) due to its tolerance to high salinity and exceptional separation performance. However, serious membrane fouling remains a challenge regarding the complexity of realistic SGW. To address the fouling issues, controlled block copolymer architecture was constructed on the FO membrane surface to achieve combined
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Engineering highly reversible hydrogen bonding interaction in pebax/deep eutectic solvent blended membranes for efficient separation of H2S from CO2 and CH4 J. Membr. Sci. (IF 9.5) Pub Date : 2024-03-12 Zhuoheng Tu, Ping Zhang, Xiaomin Zhang, Xingbang Hu, Youting Wu
Removal of HS and CO is a key step for natural gas upgrading. However, further separating HS/CO remains challenging as they are both acid gas with similar kinetic diameters, incurring complex processes and high cost for recovering HS as sulfur resource. Herein we reported for the first time the introduction of highly reversible hydrogen bonding into Pebax/deep eutectic solvent (DES) blended membranes
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Tailored design of polyamide nanofiltration membrane with small-sized MXene quantum dots for promoting water transport J. Membr. Sci. (IF 9.5) Pub Date : 2024-03-11 Qiang Xue, Wenqiao Meng, Yi Li, Qing Fang, Kaisong Zhang
The traditional 2D nanosheets, given its relatively large size, has obstacles in water transmission and may also cause non-selective defects in polyamide membranes. To account for size effects, we successfully synthesized MXene quantum dots (MQDs) with ultra-small size through simple hydrothermal reaction, which were then utilized to construct MQDs polyamide nanofiltration membranes. Compared to the
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High gas permeance in CO2-selective thin film composite membranes from bis(phenyl)fluorene-containing blends with PIM-1 J. Membr. Sci. (IF 9.5) Pub Date : 2024-03-11 Faiz Almansour, Andrew B. Foster, Ahmed W. Ameen, Sajjad Mohsenpour, Peter M. Budd, Patricia Gorgojo
A novel approach to improve the initial performance as well as to prevent physical aging of superglassy high free volume polymer PIM-1 is reported. Bis(phenyl)fluorene-based polymer of intrinsic microporosity (Cardo-PIM-1) was used at different loadings in PIM-1 to fabricate thin film composite (TFC) membranes and freestanding membranes. The gas performances of both TFCs and thick freestanding membranes
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Membrane capacitive deionization (MCDI) for selective ion separation and recovery: Fundamentals, challenges, and opportunities J. Membr. Sci. (IF 9.5) Pub Date : 2024-03-11 Qian Xiao, Jinxing Ma, Longqian Xu, Kuichang Zuo, Hao Guo, Chuyang Y. Tang
Membrane capacitive deionization (MCDI) has attracted much attention to selective separation and recovery of various ionic species due to its simplicity, environmental friendliness, excellent removal efficiency, and low energy consumption. However, there have been very few review papers focusing on the challenges and opportunities in this field. Therefore, this review comprehensively summarizes the
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Multi-functional nanofibrous membrane with antibacterial property for highly effective capture of PM0.3 and hydrogen sulfide J. Membr. Sci. (IF 9.5) Pub Date : 2024-03-11 Guangyao Wang, Zhuoran Feng, Lin Sun, Miao Wang, Yulu Li, Lanling Xiu, Yueguang Fang, Junwei Ye
In order to reduce the possible harm caused by air pollution, including particulate matters (PM), harmful gases and airborne pathogens, high-efficiency air filtration materials are attracting more and more attention. Therefore, multifunctional materials that can filter these pollutants and kill pathogenic bacteria simultaneously are urgently desired. Herein, a copper-coordinated nanofibrous membrane
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Self-healing properties of GO nanofiltration membranes based on dialdehyde cellulose nanocrystals and ethylenediamine facilitate efficient separation of dyes J. Membr. Sci. (IF 9.5) Pub Date : 2024-03-11 Yiling He, Jingcheng Wu, Shuangshuang Li, Xianmin Gong, Yi He, Khavkin Aleksandr, Xiao Guo, Hua Xiang
Graphene oxide (GO) membranes can purify wastewater due to their unique two-dimensional channels, but they are susceptible to mechanical damage during use, which reduces membrane performance. In this paper, EGO nanosheets were prepared by grafting ethylenediamine (EDA) small molecules onto GO at high temperatures and introducing aldehyde groups on the molecular chain of double aldehyde cellulose nanocrystals
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SSZ-13 membranes on novel silica carbide monoliths for efficient CO2 separation J. Membr. Sci. (IF 9.5) Pub Date : 2024-03-11 Xuqiao Mo, Hongbin Liu, Yunlong Li, Qilin Gu, Bin Wang, Rongfei Zhou, Weihong Xing
The usage of normal alumina supports brings the uncertain and undesirable aluminum transformation to the high-silica zeolite membranes to reduce Si/Al ratio in framework. In this current study, a novel aluminum-free silica carbide (SiC) monolithic support is used for the synthesis of SSZ-13 membranes with enhanced Si/Al ratio for the first time. Moreover, this high-porosity and monolithic SiC support
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Systematic experiments and multiscale simulation calculations reveal chemical stability differences in dry/wet nanofiltration membranes J. Membr. Sci. (IF 9.5) Pub Date : 2024-03-11 Meng-Han Miao, Jin-Kai Qiu, Zhen-Liang Xu, Cheng Lian, Hong-Lai Liu, Jia-Hui Li, Yong-Jian Tang
This study investigated the chemical stability differences between dry and wet nanofiltration membranes when immersed in strong acid and base environments. Systematic experimental studies were conducted on both types of nanofiltration (NF) membranes, supplemented by Molecular Dynamics (MD) simulations and Density Functional Theory (DFT) calculations. The results indicate that wet NF membranes, soaked
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Lamellar structured GO-Melamine nanocomposite membranes with varying d-spacing for efficient organic solvent nanofiltration (OSN) J. Membr. Sci. (IF 9.5) Pub Date : 2024-03-07 Shalligito Habetamu Abebe, Subrahmanya TM, Hannah Faye M Austria, Smrutiranjan Nayak, Owen Setiawan, Tsung-Han Huang, Wei-Song Hung, Chien-Chieh Hu, Kueir-Rarn Lee, Juin-Yih Lai
There is a lot of research being done on GO lamellar 2D membranes for separating organic solvents and dyes. These membranes are highly sought-after due to their exceptional characteristics. However, existing challenges include inadequate solvent permeability and limited dye rejection capacity due to swelling of membranes. In this study, we proposed a novel technique that employs low-pressure assisted
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Affinity-based engineering of carbon nanotube embedded polyamide membranes for simultaneous desalination and boron removal J. Membr. Sci. (IF 9.5) Pub Date : 2024-03-07 S. Kürklü-Kocaoğlu, A. Güvensoy-Morkoyun, C. Yıldırım, S. Velioğlu, M.G. Ahunbay, Ş.B. Tantekin-Ersolmaz
Reverse osmosis (RO) is the leading technology for obtaining drinking and irrigation water from seawater. Although currently developed RO membranes achieve high salt rejection; several challenges exist, such as permselectivity trade-off, biological/chemical contamination, and insufficient retention of small and neutral molecules like boric acid. Due to its toxicity to living organisms and strictly
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Anion exchange membranes with orderly channels enabled by charge transfer interactions for fast transportation of Cl− J. Membr. Sci. (IF 9.5) Pub Date : 2024-03-07 Lixuan Sun, Fen Luo, Cui Yang, Xin Zhang, Huaqing Zhang, Xiaolin Ge, Tongwen Xu
The formation of an ordered microphase separation structure and the realization of efficient selective ion conduction by precise regulation of the self-assembly process of solid ionic conductive polymers are important in the fields of batteries and electrodialysis. To prepare ion exchange membranes with high conductivity and selectivity, we report a strategy for the design of a selective directional
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PET-hydrogel heterogeneous membranes that eliminate concentration polarization for salinity gradient power generation J. Membr. Sci. (IF 9.5) Pub Date : 2024-03-07 Jiaqian Li, Chenxiang Li, Huimin Dou, Xiaojin Zhang, Yu Dai, Fan Xia
Salinity gradient (blue) energy has been identified as a promising power source and many technologies have been proposed for its recovery, one of which is nanopore power generators. The single-pore/channel membranes selectively transport ions to achieve efficient salinity gradient power generation. However, porous membranes fail due to concentration polarization. Here, we constructed a heterogeneous
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Significantly enhanced gas separation properties of membranes by debromination and thermal rearrangement simultaneously J. Membr. Sci. (IF 9.5) Pub Date : 2024-03-07 Luxin Sun, Zelong Xu, Lujun Huang, Hong Wang, Han Zhang, Jianxin Li, Yali Wang, Xiaohua Ma
One important challenge in advanced gas separation membranes is breaking the trade-off effect between gas permeability and selectivity. Here, we developed a method by combining the debromination and thermal rearrangement (TR) techniques together to significantly enhance the gas separation properties of the resulting membrane for the first time. First, we designed a co-polyimide (DBOH) containing both
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Fundamental insights into the variety of factors that influence water/alcohol membrane permeation selectivity J. Membr. Sci. (IF 9.5) Pub Date : 2024-03-06 Rajamani Krishna, Jasper M. van Baten
The primary objective of this article is to develop a fundamental understanding of water/methanol and water/ethanol mixture permeation across microporous membrane constructs. Configurational-Bias Monte Carlo (CBMC) simulations were undertaken for water/methanol and water/ethanol mixture adsorption in all-silica zeolites (CHA, DDR, FAU, LTA) and ZIF-8. Additionally, Molecular Dynamics (MD) simulations
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Template-assisted fabrication of polyether ether ketone hollow fiber membrane for highly efficient separation of binary dye mixtures J. Membr. Sci. (IF 9.5) Pub Date : 2024-03-06 Yan Huang, Guangyong Zhang, Xuancheng Zhang, Jingcheng Shu, Chongxiao Wang, Zhe Zhai, Xingming Jie, Shuaifei Zhao, Yuchao Zhao
Poly(ether ether ketone) (PEEK) is among the most reliable membrane materials in membrane-based separation processes due to its excellent properties especially under harsh environment. Successfully implementing the controllable construction of the pore structure into the fabrication process of PEEK hollow fiber membranes (HFMs) can make a significant contribution to addressing the issue of membrane
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Promising candidates of ether-free backbone comb-shaped sulfonated poly(oxindole biphenylene) membranes for enhanced electrochemical hydrogen compression performance J. Membr. Sci. (IF 9.5) Pub Date : 2024-03-05 Xiaomeng Chu, Zeqiang Liu, He Gao, Kang Geng, Shaojie Liu, Xuteng Xing, Erjun Tang, Nanwen Li, Song Zhao
Electrochemical hydrogen compressors (EHC) are favored for their quiet operation, efficiency, and low energy consumption in hydrogen purification and compression. A key challenge in EHC development is developing high-performance proton exchange membranes (PEMs) that manages water effectively. Herein, we've crafted a series of comb-shaped N-alkylation sulfonated poly(oxindole biphenylene) (SPOBP-C-x)
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Structurally ordered core-shell MOFs in mixed matrix membrane as magnetic sieves for O2/N2 separation J. Membr. Sci. (IF 9.5) Pub Date : 2024-03-05 Xiaochang Cao, Rujie Song, Liwei Zhang, Fang Cheng, Zhi Wang
Membrane separation technology has broad application prospects in O/N separation, and improving the permselectivity of membranes remains a key problem to be solved. O and N have different magnetic properties and can be separated by magnetism. In addition, coupling magnetic separation with the use of a molecular sieve supported by metal-organic frameworks (MOFs) could further enhance the separation
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Large-scale preparation of composite membranes for CO2 separation via interfacial polymerization: Monomer selection and processing parameter optimization J. Membr. Sci. (IF 9.5) Pub Date : 2024-03-04 Ye Yuan, Fei Shi, Qinghua Li, Yi Yang, Xiangyu Cai, Menglong Sheng, Zhi Wang
The increasingly serious situation of CO emissions compels researchers to pay extensive attention to industrial processes for carbon capture. Membrane-based separation technology is widely regarded as a promising reserve method for carbon capture, featuring a wide adjustment range, flexible operation and modular design. In this work, a large-scale interfacial polymerization membrane production process
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Co-gallate MOF Membrane for Efficient Pervaporation Separation of MeOH from MTBE J. Membr. Sci. (IF 9.5) Pub Date : 2024-03-03 Qian Wang, Changchao Zhou, Li Shen, Eryue Song, Yu Yang, Haiqian Lian, Rujing Hou, Yichang Pan
The pervaporation (PV) technology is attractive for azeotrope component separation of the MeOH/MTBE mixture due to the reduced energy and cost relative to the traditional ternary distillation process. However, the membrane separation performance is largely affected by its microstructure including pore size and shape as well as its surface properties such as hydrophilicity. Herein, we report a Co-gallate
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Asymmetrically charged polyamide nanofilm of intrinsic microporosity containing quaternary ammonium groups for heavy metal removal J. Membr. Sci. (IF 9.5) Pub Date : 2024-03-02 Xiang Guo, Bin Zhao, Liang Wang, Zhaohui Zhang, Jixiang Li
High-performance nanofiltration (NF) is a highly hopeful approach for removing heavy metals from water, which can effectively solve the hazards of heavy metals to the public health and environment security. In this study, a polyamide (PA) nanofilm of intrinsic microporosity was fabricated through interfacial polymerization of the novel spirocyclic diamine monomer (SBI) with trimesoyl chloride (TMC)
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6FDA-polyimide thin-film composite hollow fiber membranes for hydrofluorocarbons and CO2 separations J. Membr. Sci. (IF 9.5) Pub Date : 2024-03-01 Sergio V. Gutiérrez-Hernández, Sandra Rico-Martínez, Fernando Pardo, Cristina Álvarez, Jesús A. Miguel, Gabriel Zarca, Ane Urtiaga
Herein, high molecular weight fluorinated aromatic polyimides were assessed for the first time to recover difluoromethane (R-32) from its blends with other hydrofluorocarbons and hydrofluoroolefins (R-134a: 1,1,1,2-tetrafluoroethane, R-125: pentafluoroethane, and R-1234yf: 2,3,3,3-tetrafluoropropene). First, a screening was performed with thick flat membranes made of the 4,4’-(hexafluoroisopropylidene)diphthalic
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Microscopic insight into phase separation of poly (arylene piperidine)s-based high-temperature proton exchange membrane: A molecular simulation study J. Membr. Sci. (IF 9.5) Pub Date : 2024-03-01 Wen Liu, Huijuan Bai, Qi Zhang, Zhenguo Zhang, Wen Li, Haining Wang, Shanfu Lu, Yan Xiang
The formation of micro-phase separation is an effective solution to improve the mechanical property of phosphoric acids (PA) doped high temperature proton exchange membranes (HT-PEMs) while keeping the proton conductivity. However, it's still a challenge to understand the regulation of PA distribution during phase-separation formation at microscopic level. In this work, we investigated the influence
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Incorporating TiO2 nanocages into electrospun nanofibrous membrane for efficient and anti-fouling membrane distillation J. Membr. Sci. (IF 9.5) Pub Date : 2024-03-01 Shiyu Yu, Qianqian Zhao, Jiaming Zhu, Genghao Gong, Yunxia Hu
In this study, TiO nanocages with a hollow structure were integrated into the polyvinylidene fluoride co-hexafluoropropylene (PH) spinning solution, leading to the fabrication of a novel PH/TiO electrospun nanofiber membrane (PH/TiO ENM) through electrostatic spinning. The incorporation of TiO nanocages resulted in the formation of abundant micro-nano structures on the PH nanofiber surface, enhancing
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Mapping TpPa-1 covalent organic framework (COF) molecular interactions in mixed solvents via atomistic modeling and experimental study J. Membr. Sci. (IF 9.5) Pub Date : 2024-02-29 Anastasia M. Barnes, Mohammad M. Afroz, Yun Kyung Shin, Adri C.T. van Duin, Katie D. Li-Oakey
Complex solvent environments continue to limit the widespread adoption of organic solvent nanofiltration (OSN) in many chemical industry applications. In this paper we employ a commercially available covalent organic framework (COF), TpPa-1, and force field models to molecularly map separation performance of TpPa-1 membrane in mixed solvents. To minimize time and length scale mismatch between atomistic
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Hydrophobic ultrathin MOF membranes with tuning pore structure for efficient alcohol-permselective pervaporation J. Membr. Sci. (IF 9.5) Pub Date : 2024-02-29 Fengkai Wang, Hao Sun, Mengxin Shen, Jie Li, Naixin Wang, Hong Meng, Quan-Fu An
Alcohol-permselective pervaporation is a breakthrough technology in industrial separation applications. A high-flux pervaporation membrane is demanded in cost saving. In this study, an ultrathin metal-organic framework (MOF) membrane was formed on a porous polymer substrate using a hydroxyl salt induced in situ growth method. Then, the obtained MOF membrane was modified through a sulfidation strategy
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Simultaneously enhancing the oxygen flux and operational stability of Ba0.5Sr0.5Co0.8Fe0.2O3–δ membrane via an Ag doping method J. Membr. Sci. (IF 9.5) Pub Date : 2024-02-28 Zejia Li, Shude Zhang, Ping Liang, Chi Zhang, Tao Li, Zhenbao Zhang, Mingming Wang, Zongping Shao, Shaomin Liu
Recent extreme weather events emphasize the urgent need for climate action, necessitating a shift from fossil fuels to cleaner energy sources. Carbon capture and storage (CCS) projects offer a viable solution, particularly those employing Oxyfuel combustion. Oxygen transport membranes via mixed ionic and electronic conducting (MIEC) principles are envisaged to improve the viability of Oxyfuel combustion
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An interlayer strategy to fabricate dense LTA membranes with high water vapor permeability on coarse alloy supports J. Membr. Sci. (IF 9.5) Pub Date : 2024-02-28 Xin Zhou, Guangxin Ma, Weiman Li, Shichao Feng, Mengjie Cao, Shuangde Li, Jingguang Li, Chao Yang, Yunfa Chen
Employing alloys as membrane support has shown promising industrial potential for application, because alloys exhibit excellent mechanical strength and ductility. However, alloys present intractable shortcomings, like large pore size and inadequate bonding strength, hindering membranes' formation and thereby limiting their widely use. In this work, a novel interlayer strategy was proposed to make a
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Thin-film composite mixed-matrix membrane based on polymerizable ionic liquid comb copolymer for CO2 separation J. Membr. Sci. (IF 9.5) Pub Date : 2024-02-28 Miso Kang, Hyo Jun Min, Seok-Jhin Kim, Jong Hak Kim
A thin-film composite (TFC) mixed matrix membrane (MMM) was prepared using an ionic liquid (IL) and zeolitic imidazolate framework-8 (ZIF-8) dispersed in a polymerizable ionic liquid (PIL) matrix for CO separation. A PIL comb copolymer, i.e., poly(1-allyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide-co-poly(ethylene glycol) methyl ether methacrylate) (poly(AMIM-TFSI--POEM), PAP), was synthesized
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Hybrid membranes based on electrospun nanofiber modified with PDA for selective oil-in-water emulsion separation J. Membr. Sci. (IF 9.5) Pub Date : 2024-02-28 Haiying Yang, Xinhui Wang, Xuanyu Chen, Yonggui Wang, Dong Wang, Wanli Cheng, Guangping Han
Separation membranes for water remediation require structural stability, efficient operation, and durability. In this work, we synthesize hierarchical nanofibrous membranes composed of polyacrylonitrile (PAN) reinforced with cellulose nanocrystals (CNC) and polydopamine (PDA). Hydrolysis endows the PAN nanofibers with rich carboxyl functional groups and forms a hydrogen-bonded cross-linked network
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A gelatin-zirconium phosphate nanoparticles composite interlayer for enhancing compaction resistance and antifouling performance of TFC NF membrane J. Membr. Sci. (IF 9.5) Pub Date : 2024-02-28 Kuo Chen, Hengyu Zhou, Hongling Lan, Feiyang Li, Shengchao Zhao, Zewen Xu, Yaoli Guo, Yuxia Zhai, Bingbing Yuan, Peng Li, Q. Jason Niu
From a practical point of view, the thin-film composite (TFC) nanofiltration (NF) membrane should not only have superior separation performance but also excellent compaction resistance and antifouling properties. Generally, polyamide (PA) separation layers of the TFC NF membrane prepared on the support with hydrophilic interlayer are crumpled, which may be detrimental to the compaction resistance and
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Transport of carboxylate salts of varying chain lengths in crosslinked polyether membranes J. Membr. Sci. (IF 9.5) Pub Date : 2024-02-27 Antara Mazumder, Alexandra Heist, Bryan S. Beckingham
Carboxylate anions of various chain lengths are important molecules for many applications such as CO reduction, membrane-based bioreactors, etc. Also, carboxylate anions are ubiquitous in biological molecules such as amino acids, fatty acids, etc. Therefore, understanding the transport behavior of carboxylates of different chain lengths in polymer materials is important both as a fundamental phenomenon
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Understanding the mechanism of permanganate ion rejection in TpPa-1/Ti3C2T2 composite membranes via molecular dynamic simulation J. Membr. Sci. (IF 9.5) Pub Date : 2024-02-27 Yuqing Ai, Jianguo Li, Xin Zhu, Li Zhang, Xinping Wang, Chen Chen
The purification and separation of small molecules can be improved by fabricating different composite membranes, in this work, the TpPa-1/TiCT composite membranes with different structural parameters and terminating functional groups were designed for better permanganate (PP) ions separation with non-equilibrium molecular dynamics simulations. The rejection mechanism was explored from molecular level
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Advancing electrodialysis with dually cross-linked PVDF-based anion exchange membranes having semi-interpenetrating networks J. Membr. Sci. (IF 9.5) Pub Date : 2024-02-27 Yazhen Jiang, Binghui Wang, Hongyu Liu, Junbin Liao, Shuaijun Yu, Edison Huixiang Ang, Jiangnan Shen
Electrically-driven membrane technology plays a crucial role in water treatment and purification, finding applications in various fields like saline water and wastewater desalination, saline concentration and wastewater recycling. The content of this study is based on dually cross-linking and hot-pressing on a PVDF blend, to fabricate a kind of anion exchange membranes (AEMs) having semi-interpenetrating
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Experimental investigation of varying design parameters on the production rate and temperature polarisation of a DCMD system J. Membr. Sci. (IF 9.5) Pub Date : 2024-02-26 Hiras Ahamed Hijaz, Masoumeh Zargar, Abdellah Shafieian, Amir Razmjou, Mehdi Khiadani
Much of the research in the analysis of Temperature polarisation (TP) and the productivity of a membrane distillation (MD) system tends to concentrate on conditions. However, substantial enhancements in permeate flux can be realised through the incorporation of fundamental modifications. This research showed that TP can be successfully mitigated almost to a level of non-existence, by manipulating the
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Ultrathin PEI-functionalized carboxyl covalent organic framework membranes for efficient CO2/N2 separation J. Membr. Sci. (IF 9.5) Pub Date : 2024-02-24 Shichen Zeng, Xu Liang, Mingang Zhao, Yanxiong Ren, Hanze Ma, Ziting Zhu, Yuhan Wang, Shaoyu Wang, Junyi Zhao, Guangzhaoyao Yang, Xuerui Wang, Fusheng Pan, Guangwei He, Zhongyi Jiang
Covalent organic frameworks (COF) are deemed as disruptive membrane materials owing to their versatile functionalities, high stability and ordered nanochannels. However, the size mismatch between the COF intrinsic pore and gas molecules becomes a grand challenge when using COF membrane for carbon capture. Herein, we propose a new type of polymer-functionalized COF laminar membranes through grafting
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High performance mixed-dimensional assembled MXene composite membranes for molecular sieving J. Membr. Sci. (IF 9.5) Pub Date : 2024-02-24 Houlong Yang, Muqiao Han, Wentian Zhang, Ming Yi, Lichao Xia, Fangang Meng, Yan Wang, Shanshan Zhao
Two-dimensional (2D) separation membranes have proved their superiorities in addressing global water scarcity and recycling resources. However, current 2D membranes usually suffer from swelling and irregular stacking issues, which result in poor separation performance. Herein, we developed novel mix-dimensional assembled MXene composite membranes with high permeability and selectivity by intercalating
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Asymmetric polyelectrolyte multilayer membranes: Influence of bottom section polycation on layer growth and retention mechanisms J. Membr. Sci. (IF 9.5) Pub Date : 2024-02-24 Wendy A. Jonkers, Wiebe M. de Vos, Esra te Brinke
It has been previously demonstrated that asymmetric polyelectrolyte multilayer (PEM) membranes are highly promising for use in water treatment due to their ability to combine a high selectivity with a high permeability. This is achieved by first coating a more open (highly permeable) bottom PEM to fill the pores of the support membrane, and subsequently a more dense (highly selective) top PEM. However
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Construction of ultrathin and microporous polyesteramide nanofilms for efficient organic solvent nanofiltration (OSN) using diacyl chloride J. Membr. Sci. (IF 9.5) Pub Date : 2024-02-23 Mengfan Wang, Shao-Lu Li, Youcai Chen, Qiyu Duan, Dandan Cheng, Genghao Gong, Yunxia Hu
The integration of high permeability and exceptional selectivity, thereby overcoming the conventional “trade-off” effect, remains a persistent challenge for the practical implementation of organic solvent nanofiltration (OSN) membranes. Herein, at the molecular level of design, we utilized the 5,5′-diamino-2,2′-biphenol (amino-BIPOL) and diacyl chloride as IP monomers to prepare OSN membranes with
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Alkaline-oxidized MXene composite membrane of ultra high flux and advanced rejection performance for water purification J. Membr. Sci. (IF 9.5) Pub Date : 2024-02-23 Hongkai Liu, Mao Mu, Nigel J.D. Graham, Wenzheng Yu, Ting Liu, Kening Sun
MXene is a metal-carbon/nitrogen compound material with a two-dimensional layered structure. As a new form of two-dimensional material, it has great potential in the field of water purification because of its properties of high permeability and hydrophilicity. In this study, a MXene composite membrane was prepared by in-situ oxidation of titanium dioxide on the MXene surface by an alkaline oxidation
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Influence of utilizing hemodialysis membranes outside-in on solute clearance and filtration efficiency – One step towards a novel combined lung and kidney support device J. Membr. Sci. (IF 9.5) Pub Date : 2024-02-22 Ana Martins Costa, Frank R. Halfwerk, Jan-Niklas Thiel, Bettina Wiegmann, Michael Neidlin, Jutta Arens
Many membrane oxygenator patients suffer from renal disfunction. For these patients, a novel device integrating artificial lung and kidney support is being developed. Although outside-in blood flow is standard for membrane oxygenators, this is not typical for hemodialysis systems. The effect of outside-in blood flow on the efficiency of hemodialysis fibers for continuous hemodialysis and hemofiltration
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Construction of covalent organic frameworks membranes in situ through nonsolvent-induce phase separation for fast and accurate nanofiltration J. Membr. Sci. (IF 9.5) Pub Date : 2024-02-22 Yu Xiang Liu, Jian Hua Chen, Na Qin, Ding Ling Gao, Ya Yuan Zhang, Qian Yang
With the development of covalent organic frameworks (COFs), their superior separation performance in membrane separation has gradually becoming apparent. The method of combining COFs with membrane materials is crucial for their applications prospect. In this study, inspired by the traditional Chinese mortise and tenon structure, we selected 1,3,5-triacetaldehyde mesityl phenol (TFP) and 1,3,5-tris