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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
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Custom-tailoring zwitterion-based nanofiltration membranes for organic molecule desalination with sub-200 Da molecular weight J. Membr. Sci. (IF 9.5) Pub Date : 2024-02-22 Bin Wu, Weiyi Fan, Ruochen Wang, Naixin Wang, Yue Shen, Mwema Wanjiya, Yanhui Wu, Quan-Fu An
Organic molecule desalination with nanofiltration has important practical application significance. Zwitterion-based nanofiltration membranes (ZNFMs) with selective channels for monovalent salts have been prepared to improve the separation performance. However, most ZNFMs tend to be restricted by their loose structures, which results in unsatisfactory rejection for small molecules with sub-200 Da molecular
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Less sensitive proton-exchange membrane to a relative humidity below 30% J. Membr. Sci. (IF 9.5) Pub Date : 2024-02-22 Sahng Hyuck Woo, Belkacem Otazaghine, Sara Cavaliere, Byeong-Seon An, Hee Soo Kim, Jae-Hun Kim, Young-Gi Yoon, Soo Youn Lee, Arnaud Rigacci, Christian Beauger
In this work, we focus on a novel sepiolite-incorporated Aquivion composite membrane that can be operated in a proton-exchange membrane fuel cell (PEMFC) at a relative humidity (RH) below 30%. The maximum power density reduction of the developed membrane is only 0.77% at 30% RH. In the study, we demonstrated adding sepiolite grafted with fluorination groups enhanced the homogeneity of the composite
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Shape memory membranes with uniform vertically-penetrative-channels J. Membr. Sci. (IF 9.5) Pub Date : 2024-02-22 Liang Zhang, Chuhuan Guo, Jiayao Wang, Yongjin Li, Xudong Zhu, Jing Yang, Jichun You, Jian Jin, Fenggang Bian
For the first time, we report the concept of shape memory membranes with uniform vertically-penetrative-channels (SMEUVs) by taking polylactic acid (PLA) as an example. PLA SMEUVs were prepared via the combination of reverse replication and shape memory effect. The resultant membranes exhibit monodispersed pore size, oriented channels and continuously-tunable pore size/geometry, all of which have been
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Corrigendum to “Fabrication of cation exchange membrane with excellent stabilities for electrodialysis: A study of effective sulfonation degree in ion transport mechanism” [J. Membr. Sci. 615 (2020) 118539] J. Membr. Sci. (IF 9.5) Pub Date : 2024-02-20 Jinli Zhao, Luyao Ren, Qing-bai Chen, Pengfei Li, Jianyou Wang
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Corrigendum to “The pervaporative membrane with vertically aligned carbon nanotube nanochannel for enhancing butanol recovery” [J. Membr. Sci. 577 (May 2019) 51–59] J. Membr. Sci. (IF 9.5) Pub Date : 2024-02-20 Decai Yang, Chi Cheng, Meiting Bao, Lijie Chen, Yongming Bao, Chuang Xue
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Theory of expansion and compression of polymeric materials: Implications for membrane solvent flow under compaction J. Membr. Sci. (IF 9.5) Pub Date : 2024-02-20 Hanqing Fan, Menachem Elimelech, P.M. Biesheuvel
We extend the classical Flory-Rehner theory for the expansion and compression of porous materials such as cross-linked polymer networks and membranes. The theory includes volume exclusion, affinity with the solvent, and finite stretching of the polymer chains. We also modify this equilibrium theory, which applies to equal expansion of a material in all directions, to the situation where a material
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Acid and chlorine-resistant cations selective nanofiltration membranes derived from Hoffmann alkylation reaction J. Membr. Sci. (IF 9.5) Pub Date : 2024-02-20 Yafei Su, Huawen Peng, Yongjin Hu, Shaoping Li, Jingyi Rao, Qiang Zhao
Conventional polyamide and polyester thin film composite membranes (TFCMs) are susceptible to harsh conditions, because the amide and ester bonds in them will degrade under extreme pH or chlorine oxidants. This work addressed this problem by preparing TFCMs through the Hoffmann alkylation reaction. Two monomers, 1,4,7,10-Tetraazacyclododecane (TAD) and 1,2,4,5-Tetrakis(bromomethyl)benzene (TBB), were
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COFs interlayer manipulated interfacial polymerization for fabricating high performance OSN membrane with overall covalently crosslinked structure J. Membr. Sci. (IF 9.5) Pub Date : 2024-02-19 Yu Peng, Weijia Song, Enlin Wang, Qian Yang, Baowei Su
Organic solvent nanofiltration (OSN) membrane, as the core of the OSN technology, plays a very important role in achieving the precise separation of solutes and organic solvents. Covalent organic frameworks (COFs) interlayer is useful for fabricating OSN membranes with high performance. However, the effect of COFs interlayer on manipulating the interfacial polymerization process of OSN membranes has
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Microporous and low swelling branched poly(aryl piperidinium) anion exchange membranes for high-performed water electrolyzers J. Membr. Sci. (IF 9.5) Pub Date : 2024-02-19 Shuai Zhang, Xiaofeng Li, Yanqin Yang, Jingde Li, Jifu Zheng, Suobo Zhang
The Development of high-efficiency anion exchange membrane water electrolyzers (AEMWEs) depends on a well-designed anion exchange membrane (AEM) that possesses good mechanical robustness, high alkaline stability, and enhanced ionic conductivity. Herein, we use tetraphenylmethane as a branched monomer to create AEMs with branched structure based upon poly(aryl piperidinium)s. When five molar percentage
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Machine learning-based discovery of molecular descriptors that control polymer gas permeation J. Membr. Sci. (IF 9.5) Pub Date : 2024-02-19 Tejus Shastry, Yasemin Basdogan, Zhen-Gang Wang, Sanat K. Kumar, Matthew R. Carbone
While machine learning has found increasing use in predicting the properties of polymeric materials with only a knowledge of chain architecture, determining the molecular factors underpinning properties (“interpretable AI”) has remained less well explored. We show that encoding chain chemistry in commonly employed formats, e.g., binary-valued fingerprints, leads to uniqueness issues during the hashing
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Corrigendum to “Influence of Donnan and dielectric exclusion on ion sorption in sulfonated polysulfones” [J. Membr. Sci. 694 (February 2024) 122396] J. Membr. Sci. (IF 9.5) Pub Date : 2024-02-19 Sean M. Bannon, Geoffrey M. Geise
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Simulations predict salt partitioning in nanostructured ion exchange membranes J. Membr. Sci. (IF 9.5) Pub Date : 2024-02-17 Ritwick Kali, Scott T. Milner
Nanostructured ion exchange membranes exhibit an intricate network of aqueous pores that facilitate ion and water transport, which maybe useful in water purification and energy storage applications. In this study, we employ molecular dynamics simulations to investigate randomly sulfonated polystyrene-polymethylbutylene (PS-PMB) block copolymer membranes. We find that ion distribution within the pores
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Isopropanol concentration by osmotically assisted reverse osmosis J. Membr. Sci. (IF 9.5) Pub Date : 2024-02-16 Mengyang Hu, Kazuo Kumagai, Ralph Rolly Gonzales, Yu-Hsuan Chiao, Kecheng Guan, Takahiro Kawakatsu, Hideto Matsuyama
Isopropanol (IPA) is a versatile solvent used in a wide range of industrial and consumer applications, and its disposal may pose high costs and environmental concerns. In this work, the osmotically assisted reverse osmosis (OARO) technology was employed to demonstrate the effective treatment and concentration of IPA wastewater. The effect of various operating parameters, including feed solution concentration
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Construction of gradient SA-TiO2 hydrogel coated PVDF-g-IL fibre membranes with high hydrophilicity and self-cleaning for the efficient separation of oil-water emulsion and dye wastewater J. Membr. Sci. (IF 9.5) Pub Date : 2024-02-16 Hongxu Liu, Junhao Xie, Jingxuan Zhao, Ruijia Wang, Yuchao Qi, Ziwei Lv, Yang Yu, Shulin Sun
The industrial wastewater filtered by water treatment membranes is very complex in practical applications, therefore, it is a challenge to prepare a membrane with large pore size and high flux that can efficiently separate various wastewater containing pollutants of different scales. To solve this problem, an SA-TiO hydrogel-coated PVDF-g-IL composite fibre membrane with super hydrophilicity, anti-pollution
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Puffy hierarchical nanonet structured multifunctional membranes for NO degradation and ultrafine dust filtration J. Membr. Sci. (IF 9.5) Pub Date : 2024-02-16 Jiesong Tan, Shibo Yu, Jiahao Chen, Jinxin Gan, Feng Zhang, Shengui Ju, Yiqing Zeng, Zhaoxiang Zhong, Weihong Xing
Multifunctional nanofibrous catalytic membranes are used for comprehensive treatment of fine particulate matter (PM) and toxic gaseous contaminants. However, the need for high purification efficiency with low resistance presents a unique challenge. Herein, a method of optimizing the morphology of manganese oxide (MnO) on Zr-TiO (TZ) nanofiber membranes was developed to remove ultrafine PM and nitric
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Bioinspired cell membrane-based nanofiltration membranes with hierarchical pore channels for fast molecular separation J. Membr. Sci. (IF 9.5) Pub Date : 2024-02-15 Junping Miao, Qiaoxia Hu, Zhaoqian Zhang, Yunxia Hu
Owing to intrinsic perm-selectivity, cell membranes have attracted considerable attention in the field of biomimetic membranes. Herein, largest possible cell membranes of were prepared and then used as two-dimensional (2D) materials to fabricate high-performance nanofiltration (NF) membranes. The structure parameters of the selective layer of the -NF membrane could be finely tailored through the loading
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A clear view of biofouling in spacer filled membrane filtration channels: Integrating OCT and CT for improved visualization and localization J. Membr. Sci. (IF 9.5) Pub Date : 2024-02-15 Kees Theo Huisman, Luca Fortunato, Johannes S. Vrouwenvelder, Bastiaan Blankert
Spiral wound membrane elements for reverse osmosis (RO) seawater desalination are increasingly important to produce clean water to cope with the rising global freshwater scarcity. Spiral wound elements are prone to biofouling development which can be monitored using optical coherence tomography (OCT). Although OCT has emerged as a dominant technology for nondestructive monitoring of membrane fouling
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Exploring the separation properties of high-Si CHA membranes for the CO2 capturing technology: Impact of the selective layer thickness and growth mechanism J. Membr. Sci. (IF 9.5) Pub Date : 2024-02-15 Alireza Taherizadeh, Adrian Simon, Hannes Richter, Michael Stelter, Ingolf Voigt
This study investigates the influence of the CHA selective layer's thickness, coated on a mono-channel alumina support using the secondary growth method, on the performance of CO separation from CH. The membrane layer's thickness was explored by adjusting the concentration and duration of the seeding process, as well as the distribution of crystal size in the suspension. Single gas analysis results
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Photocatalytic self-cleaning graphene oxide/ZnO hybrid membrane for ultrafast cyclic small organic molecule separation J. Membr. Sci. (IF 9.5) Pub Date : 2024-02-14 Nurul A. Mazlan, Allana Lewis, Zheng Chen, Fraz Saeed Butt, Jilong Han, Norbert Radacsi, Shuiqing Yang, Yi Huang
Graphene oxide (GO) based membranes have attracted tremendous interest owing to their unique lamellar structure resulting in excellent molecular filtration. However, the expansion of interlayer spacing of GO nanoflakes in liquid solutions, particularly in aqueous solution, and the adsorption of foulants in the layered nanoconfinement as well as on the surface adversely affects the long-term performance
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Water content of ion-exchange membranes: Measurement technique and influence on the ion mobility J. Membr. Sci. (IF 9.5) Pub Date : 2024-02-14 Alaaeldin A.E. Elozeiri, Rob G.H. Lammertink, Huub H.M. Rijnaarts, Jouke E. Dykstra
Ion-exchange membranes (IEMs) are essential components of several electrochemical water technologies where they promote the transport of certain ionic species over others. A characteristic property of IEMs concerns their ionic charge density (ICD) which is a key parameter for modeling ion transport. In literature, significant variations in ICD for similar membranes are reported. We analyzed the sources
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Heterogeneous MoS2-GO membranes with enhanced resistance to swelling and restacking J. Membr. Sci. (IF 9.5) Pub Date : 2024-02-14 Monong Wang, Jeffrey J. Urban, Baoxia Mi
In this study, we report a heterogeneously stacked MoS-Graphene Oxide (GO) membrane that demonstrates enhanced resistance to restacking and swelling compared to homogeneously stacked pure MoS or GO membranes. The heterogeneous membrane was prepared using a mixture of MoS and GO suspensions with varying ratios. X-ray diffraction analysis reveals three stacking structures within the heterogeneous membrane:
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Enhancing separation and long-term performance of reverse osmosis desalination through the incorporation of 15-crown-5 in thin-film composite membranes with Li+ and Na+ augmentation J. Membr. Sci. (IF 9.5) Pub Date : 2024-02-13 Chia-Ming Chang, Qipeng Zhao, Shing Bor Chen
Thin-film composite (TFC) membranes have been intensively studied for the purpose of improving separation performance. Different additives have been attempted during the interfacial polymerization. In this study, 15-Crown-5 (CE15) was employed as the additive to produce TFC membranes for reverse osmosis. The influences of CE15 on the membrane surface morphology, chemical composition and separation
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Robust, versatile, and hemicellulose-derived biocomposite Janus membrane for saline wastewater desalination J. Membr. Sci. (IF 9.5) Pub Date : 2024-02-13 Rongrong Liu, Qun Li, Lan Gan, Yongsheng Chen, Zhaohui Tong
Our society faces substantial challenges related to water scarcity and the treatment of saline wastewater. Hydrophobic polymers, such as polyvinylidene fluoride (PVDF), have gained widespread recognition for their application in membrane distillation (MD) to desalinate water. This technique is favored for its simplicity and impressive salt removal capabilities. However, when treating saline industrial
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Tannic acid self-aggregation and adsorption onto a polyethersulfone membrane: An all-atom molecular dynamics study J. Membr. Sci. (IF 9.5) Pub Date : 2024-02-13 Marie Certiat, Johanne Teychené, Christelle Guigui, Stéphanie Laborie, Franck Jolibois
Atomic scale modeling is crucial for characterizing the interactions responsible for fouling, which is a major limitation in the use of membrane filtration technologies for the recovery of polyphenols. In this work, a methodology to model a porous ultrafiltration polyethersulfone (PES) membrane is presented. Subsequently, various systems containing tannic acid (TA) molecules at different concentrations