Journal of Membrane Science最新文献

{"title":"Preparation of superhydrophobic PVDF membranes for CO2 absorption via a facile spraying method","authors":"Wen Wang,&nbsp;Yang Jin,&nbsp;Jiandong Wang,&nbsp;Jun Li,&nbsp;Quan Ma","doi":"10.1016/j.memsci.2025.123979","DOIUrl":"10.1016/j.memsci.2025.123979","url":null,"abstract":"<div><div>Membrane absorption represents a promising technology in carbon capture. However, its efficiency is limited by membrane wettability and mass transfer resistance. In this study, an adhesive layer was constructed on commercial membranes through the deposition of phenol-amine copolymer. Subsequently, a rapid spraying method was employed to load silica nanoparticles, complemented by fluorinated hydrophobic modification, resulting in the successful fabrication of superhydrophobic PVDF membranes. The membranes were thoroughly evaluated through a series of characterizations and CO₂ absorption experiments, focusing on surface morphology, chemical composition, wettability, roughness, and absorption flux. Comparative analysis between the three-step (S-Si-3-M) and two-step (S-Si-2-M) methods revealed the structural and performance advantages of the latter. The findings indicated that the S-Si-2-M membrane exhibited a loose, porous structure with high roughness, demonstrating superior overall performance compared to S-Si-3-M. The water contact angle for S-Si-2-M was measured at 153.1°, with a sliding angle of 8.2°, confirming its superhydrophobic characteristics. The deposition of phenol-amine rendered the membrane amino-functionalized, enhancing its CO₂ affinity. Absorption experiments revealed that the flux of S-Si-2-M significantly exceeded the pristine membrane under various absorption conditions, maintaining a stable flux of approximately 4.8 mmol m⁻² s⁻¹ over a 40-h absorption experiment, thus indicating excellent membrane absorption performance. This work offers a novel approach for the development of high-performance membrane materials in membrane CO₂ absorption.</div></div>","PeriodicalId":368,"journal":{"name":"Journal of Membrane Science","volume":"724 ","pages":"Article 123979"},"PeriodicalIF":8.4,"publicationDate":"2025-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143644545","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biomimetic, antibiofouling graphdiyne-Ti3C2Tx MXene fiber fabrics for high-performance osmotic energy conversion","authors":"Chengzhi An ,&nbsp;Yu Zhang ,&nbsp;Yongzhe Zhang ,&nbsp;Chaoming Xu ,&nbsp;Zengming Man ,&nbsp;Guan Wu","doi":"10.1016/j.memsci.2025.123977","DOIUrl":"10.1016/j.memsci.2025.123977","url":null,"abstract":"<div><div>Construction of advanced permselective membranes with strong surface charges, crosslinked hierarchical channels, and antibiofouling properties are needed to achieve high power density for harvesting sustainable osmotic energy in the marine environment. Herein, a biomimetic graphdiyne (GDY)-Ti₃C₂T_x MXene fiber fabrics (G-MFFs) with excellent ion permeability and selectivity based on a microfluidic wet-fused spinning and in situ polymerization strategy is reported. The decorated GDY improves antierosion quality and ion diffusion/rectification. The as-prepared G-MFFs with abundant ion migration channels and strong cation permselectivity exhibit increased Na⁺ ion diffusion capability (0.38 vs. 0.80 eV of MFFs) and a high transference number of Na⁺ ion. Therefore, the biomimetic permselective fabrics achieve a peak power density of 9.29 W m⁻² in natural seawater/river water and 74.55 W m⁻² under a 500-fold salinity gradient, far exceeding commercial standards. G-MFFs exhibit a promising long-term stability, high output power density with tunable fiber diameters and effective performance even under different pH levels (7.21–8.52 W m⁻² at pH 4–10). Moreover, G-MFFs exhibit exceptional resistance against biofouling (an antimicrobial rate of 99.96 %). Hence, this study may inspire the fabrication and expand the viability of functional fabric-based permselective devices for practical marine environment applications.</div></div>","PeriodicalId":368,"journal":{"name":"Journal of Membrane Science","volume":"724 ","pages":"Article 123977"},"PeriodicalIF":8.4,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143682391","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Modelling virus filtration and virus reduction by an advanced multilayer model: Retention distribution and the effect of product aggregates","authors":"Hironobu Shirataki ,&nbsp;Remo Leisi ,&nbsp;Junji Hidaka ,&nbsp;S. Ranil Wickramasinghe","doi":"10.1016/j.memsci.2025.123976","DOIUrl":"10.1016/j.memsci.2025.123976","url":null,"abstract":"<div><div>Robust virus reduction and high permeability are characteristic properties of virus filters, which are modeled as having an asymmetric multilayer membrane structure with a pore size distribution. In this study, an advanced heterogeneous multilayer model for the multicomponent solution containing viruses, protein monomers and aggregates, has been developed to reproduce the filtration behavior, virus reduction, and virus/protein retention distribution in the virus filter with asymmetric membrane structure. Calculations based on the multilayer membrane structure with consideration of the effect of aggregate size and concentration numerically reproduce the experimental results that virus LRV (log reduction value) decreases when a large number of protein aggregates close in size to that of virus are present in the solution and that high virus LRV can be achieved even when the permeability is significantly reduced by the filtration of high concentration protein solution. In addition, the model calculation reproduced the filtration behavior of both constant flux and constant pressure filtrations with the same physical parameters, suggesting the equivalence of both filtration control modes. The advanced multilayer model was well able to reproduce filtration behavior, virus LRV and virus/protein retention distribution in the membrane by the same physical parameters at 1 mg/mL IgG. However, at 10 mg/mL IgG, while filtration behavior and virus LRV could also be reproduced, the virus/protein retention distribution in the membrane could not be well reproduced. This may simply indicate the possibility that larger sized aggregates that do not follow the size exclusion mechanism may be present in the concentrated feed solution.</div></div>","PeriodicalId":368,"journal":{"name":"Journal of Membrane Science","volume":"724 ","pages":"Article 123976"},"PeriodicalIF":8.4,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143682393","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Directional anchoring of cobalt metal sites in mixed matrix membranes via interfacial covalent grafting for synchronous separation of particulate matter and CO2","authors":"Shaozhen Wang ,&nbsp;Zhengshao Xiong ,&nbsp;Mengjiao Cui ,&nbsp;Zihan Wang ,&nbsp;Yuan Xu ,&nbsp;Jiao Yu ,&nbsp;Yang Li ,&nbsp;Jing-xin Ma ,&nbsp;Li Zhao ,&nbsp;Yang Lei","doi":"10.1016/j.memsci.2025.123974","DOIUrl":"10.1016/j.memsci.2025.123974","url":null,"abstract":"<div><div>In the co-capture technology for particulate matter (PM) and carbon dioxide (CO₂) using mixed matrix membranes (MMMs), concentration polarization at the membrane surface, along with the inappropriate selection and proportion of active layer and substrate, are primary factors influencing both separation efficiency and production performance. However, the fabrication of defect-free solid-gas separation membranes with enhanced permeability selectivity and phase compatibility remains a challenge due to the formation of substrate-filler interface defects and filler aggregation. In this study, the use of cobalt-coordinated conjugated microporous polymers (CMPs) as an adsorptive active layer for interfacial modification effectively mitigates the aggregation of porous fillers and enhances the interaction between the substrate and filler components, thereby forming MMMs with superior interfacial compatibility and selectivity towards harmful PM and mixed gas components. The Co-CMP-MWCNTs exhibited a capture efficiency for PM_3.0 exceeding 99.9 % in acidic and alkaline environments, with a high ideal adsorption solution theory (IAST) selectivity of 160 for CO₂/N₂ mixed components. By comparing the experimental data with the calculations of density functional theory (DFT), the structure-activity relationship between the precise control of pore size and the interaction of active sites with guest molecules and the enhancement of membrane permeation selectivity was elucidated. Based on the structural regulation and polymerization optimization of porous fillers, by reducing particle agglomeration and improving the substrate-filler compatibility, the CMPs-based membranes can adjust the inherent trade-off between selectivity and permeability in the solid-gas mixed separation system, providing a theoretical basis for the precise design and rational creation of high-value-added membranes.</div></div>","PeriodicalId":368,"journal":{"name":"Journal of Membrane Science","volume":"724 ","pages":"Article 123974"},"PeriodicalIF":8.4,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143682389","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Transforming PA RO membrane with [3-(2-aminoethyl) aminopropyl] triethoxysilane (AEAPTES) for superior antifouling and water purification","authors":"Qianqian Zhao ,&nbsp;Haiqi Jia ,&nbsp;Wenxiong Shi ,&nbsp;Shaolu Li ,&nbsp;Xiaohui Yi ,&nbsp;Siqi Yin ,&nbsp;Genghao Gong ,&nbsp;Yunxia Hu","doi":"10.1016/j.memsci.2025.123975","DOIUrl":"10.1016/j.memsci.2025.123975","url":null,"abstract":"<div><div>Aromatic polyamide (PA) reverse osmosis (RO) membrane has gained widespread usage in desalination and water production. Nevertheless, their surfaces are prone to fouling during practical applications stemming from their inherent physicochemical properties. Therefore, conducting research on enhancing the antifouling properties of PA membranes through surface modification is of significant importance. In this work, high-flux and superior antifouling RO membranes were fabricated via surface grafting and self-crossing of [3-(2-aminoethyl) aminopropyl] triethoxysilane (AEAPTES) on the pristine PA membrane surface. Benefiting from solvent activation by n-hexane/n-decane and the strong hydrophilicity of AEAPTES, the modified membranes showed a significant enhancement in water permeance by approximately 73 % (reaching up to 4.10 LMH/bar) compared to unmodified PA membrane, while maintaining NaCl rejection above 98.67 %. Additionally, the modified membrane exhibited outstanding stability. Dynamic fouling experiments with charged model foulants of varying molecular sizes, supported by molecular dynamics simulation analysis, demonstrated that the surface charge plays a crucial role in resisting small-molecule foulants, while hydrophilicity is more effective against macromolecule foulants. Although AEAPTES incorporation did not improve the antifouling performance to negatively charged sodium dodecyl sulfate (SDS), it significantly improved resistance to positively charged dodecyl trimethyl ammonium bromide (DTAB) and charged protein model foulants, including lysozyme (LYZ) and bovine serum albumin (BSA). These improvements are attributed to the creation of a thick hydration layer, as well as the electrostatic interactions and steric hindrance effects provided by the AEAPTES modified layer. This research offers new perspectives on the antifouling mechanisms of PA membranes modified by organoalkoxysilane molecules.</div></div>","PeriodicalId":368,"journal":{"name":"Journal of Membrane Science","volume":"724 ","pages":"Article 123975"},"PeriodicalIF":8.4,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143644544","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigation of competitive sorption and plasticization of hyperaged CANAL ladder polymers for acid gas purification","authors":"Jing Ying Yeo ,&nbsp;Francesco M. Benedetti ,&nbsp;Benjamin J. Pedretti ,&nbsp;Ashley M. Robinson ,&nbsp;Ruilin Yin ,&nbsp;Holden W.H. Lai ,&nbsp;Tae Hoon Lee ,&nbsp;Yan Xia ,&nbsp;Zachary P. Smith","doi":"10.1016/j.memsci.2025.123973","DOIUrl":"10.1016/j.memsci.2025.123973","url":null,"abstract":"<div><div>Identifying membrane materials that have exceptional separation performance and stability to complex CO₂-containing mixtures is a pressing topic in separation science. In this work, the membrane separation performance for a recently discovered class of contorted polymers synthesized via catalytic arene-norbornene annulation (CANAL) polymerization is presented. These CANAL polymers achieve high CO₂/CH₄ selectivity of 68 after physical aging (up to ∼1 year), which significantly augments the size-sieving capabilities of the membranes. Binary CO₂/CH₄ and ternary H₂S/CO₂/CH₄ testing result in a 41 % and 50 % enhancement in selectivities, respectively, for hyperaged (∼1 year) contorted CANAL polymers, highlighting their size-sieving capabilities. The remarkably high CO₂/CH₄ mixed-gas and combined acid gas (CAG, (CO₂+H₂S)/CH₄) selectivities of 88 and 95, respectively, for CANAL-Me-S₅F in particular surpass both the 2018 CO₂/CH₄ mixed-gas and CAG upper bounds. Performance stability was also investigated for high concentrations of CO₂, revealing a reduction in CO₂/CH₄ mixed-gas selectivity without compromising CO₂ permeability, suggesting strong sorption of CO₂ but minimal plasticization effects for short testing periods. Conversely, time-dependent plasticization shows negligible effects on CO₂/CH₄ mixed-gas selectivity despite an increase in CO₂ permeability when exposed to high concentrations of plasticizing CO₂ over an extended period of 170 h. This study provides valuable insights into hyperaged CANAL polymers and their performance in practical industrial processes.</div></div>","PeriodicalId":368,"journal":{"name":"Journal of Membrane Science","volume":"726 ","pages":"Article 123973"},"PeriodicalIF":8.4,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143738830","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sandwich-like multilayer hollow fiber carbon membranes for gas separations","authors":"Yuqian Liu ,&nbsp;Guanran Zhao ,&nbsp;Fengya Tong ,&nbsp;Zhi Li ,&nbsp;Lisha Wang ,&nbsp;Chuning Fang ,&nbsp;Linfeng Lei ,&nbsp;Zhi Xu","doi":"10.1016/j.memsci.2025.123972","DOIUrl":"10.1016/j.memsci.2025.123972","url":null,"abstract":"<div><div>Carbon molecular sieve (CMS) membranes with tunable and rigid pore structures are attractive for a broad spectrum of gas separations. The microstructure design of CMS membranes is one of the keys to developing advanced CMS membranes. Here, we present a sandwich-like multilayer CMS (SCMS) hollow fiber membrane, with inner and outer dense layers and an intermediate porous layer structure, which holds precise molecular sieving ability and good mechanical strength. Compared to symmetrical dense layer membranes, the SCMS hollow fiber membrane showed a ∼350 % increase in H₂ permeance and maintained a high H₂/CH₄ ideal selectivity of 398. Besides, the membranes exhibited pressure-resistance superiority, evidenced by H₂/CH₄ mixed gas tests under high-pressure conditions up to 40 bar. A dynamic durability test under a feed pressure of 30 bar demonstrated its good stability with a maintained H₂/CH₄ separation factor of ∼300. This work shows a path to design high-performance CMS membranes with a sandwich-like multilayer structure to maintain molecular sieving capability and pressure-resistance ability, which are ideal membrane materials for high-pressure-related light gas separations, such as H₂ (helium) extraction from natural gas and CO₂ removal from natural gas.</div></div>","PeriodicalId":368,"journal":{"name":"Journal of Membrane Science","volume":"724 ","pages":"Article 123972"},"PeriodicalIF":8.4,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143645073","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tuning membrane surface wetting behavior via dual-nanomaterial functionalization for efficient water purification","authors":"Shuai Liang ,&nbsp;Zhibo Ma ,&nbsp;Zhonghua Fan ,&nbsp;Mengyao Gu ,&nbsp;Haojie Ding ,&nbsp;Dexiu Wu ,&nbsp;Yifan Gao ,&nbsp;Xia Huang","doi":"10.1016/j.memsci.2025.123970","DOIUrl":"10.1016/j.memsci.2025.123970","url":null,"abstract":"<div><div>The development of antifouling membranes is pivotal for advancing membrane technology, yet flexible control over membrane properties remains challenging. Here, we present a dual-nanomaterial functionalization strategy combing surface modified silica (M-SiO₂) nanoparticles and layered double hydroxide (M-LDH) nanosheets to synergistically regulate membrane characteristics. Systematic characterizations of the nanomaterials and five nanomaterial-functionalized membranes revealed that the dual-nanomaterial systems maintained colloidal stability (zeta potentials: ∼25–140 mV at pH ∼5–7), and the dual-nanomaterial functionalized membranes exhibited smoother surfaces (<em>R</em>_a as low as ∼28.9 ± 5.9 nm) compared to the pristine membrane (<em>R</em>_a ∼41.3 ± 9.5 nm). The hierarchical surface structure of the dual-nanomaterial functionalized membranes (Mem-S2-L1, Mem-S1-L1, Mem-S1-L2) could promote Wenzel-state contact with water, resulting in faster water contact angle decline compared to the mono-nanomaterial functionalized membranes (Mem-S1, Mem-L1), thereby demonstrating enhanced hydrophilicity. Incorporation of M-LDH conferred simultaneous hydrophilicity (water contact angle as low as ∼14.3°) and oleophobicity (diiodomethane contact angle up to ∼58.6°), and brought about higher water permeabilities (up to ∼2.7 × 10⁻⁶ m s⁻¹ kPa⁻¹, twice that of the pristine membrane) with minimal compromise on rejection capability. Ten-cycle filtration tests using practical membrane bioreactor mixed liquor demonstrated robust antifouling capability across all functionalized membranes. This work establishes a versatile platform for tailoring membrane properties through nanomaterial synergy, offering adaptable solutions for diverse water treatment applications.</div></div>","PeriodicalId":368,"journal":{"name":"Journal of Membrane Science","volume":"724 ","pages":"Article 123970"},"PeriodicalIF":8.4,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143619751","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"In-situ interlaminar growth of an azine-linked covalent organic framework in the Ti3C2TX membrane for molecule sieving with stable and high-efficiency performance","authors":"Qiao Liu ,&nbsp;Bingshan Tao ,&nbsp;Nong Xu ,&nbsp;Qing Wang ,&nbsp;Long Fan ,&nbsp;Yinhua Wan","doi":"10.1016/j.memsci.2025.123966","DOIUrl":"10.1016/j.memsci.2025.123966","url":null,"abstract":"<div><div>Two-dimensional (2D) MXene membranes have attracted significant attention for their high efficiency in molecule separation. In this study, an interlaminar <em>in-situ</em> growth strategy was employed to incorporate TpHz into the adjacent layer space between the Ti₃C₂T_x nanosheets of the 2D Ti₃C₂T_x membrane. In the typical synthesis process, due to the hydrophilic nature of Ti₃C₂T_x, the aqueous phase monomer diffuses through the Ti₃C₂T_x layers, reacts with the organic phase monomer in the top-surface and generate TpHz <em>in-situ</em>. Gradually, TpHz grows into the interlaminar space of the Ti₃C₂T_x nanosheets and the interior of the membrane. Owing to the charge transfer interaction existing between the TpHz and Ti₃C₂T_x nanosheets, the adjacent layer space between the Ti₃C₂T_x nanosheets is broadened without compromising the structural stability of the composite membranes. Accordingly, the TpHz/Ti₃C₂T_x composite membrane (TTCM) exhibit highly efficient molecule sieving properties and excellent structural stability, with a high pure water permeance of 986.5 L m⁻² h⁻¹·bar⁻¹ and a rejection rate of over 95.0 % for anionic organic dyes. Additionally, the TpHz/Ti₃C₂T_x layer, with the thickness of only 160 nm, in the TTCM could withstand 80 h of water and solution flushing at a flow rate of 40 L min⁻¹ in cross-flow filtration tests, maintaining stable solution permeance of 448 L m⁻² h⁻¹·bar⁻¹ and rejection rates of 95.3 % demonstrating its high structural stability and potential for expanding industrial application in molecule sieving processes.</div></div>","PeriodicalId":368,"journal":{"name":"Journal of Membrane Science","volume":"723 ","pages":"Article 123966"},"PeriodicalIF":8.4,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143619484","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Advancing organic solvent nanofiltration: Unveiling solvent-mediated reciprocal action with innovative polydimethylsiloxane composite membranes","authors":"Yida Wang ,&nbsp;Huan Liu ,&nbsp;Jiayu Dong ,&nbsp;Yan Wang","doi":"10.1016/j.memsci.2025.123964","DOIUrl":"10.1016/j.memsci.2025.123964","url":null,"abstract":"<div><div>Driven by the need for efficient organic solvent recovery, membrane-based organic solvent nanofiltration (OSN) technology has garnered significant attention for its cost-effectiveness and energy efficiency. Unlike aqueous filtration systems, the complex solvent environment in OSN processes leads to intricate solvent-mediated reciprocal actions among membranes, solvents and solutes, which, in turn, impact on the membrane performance, yet these effects remain unexplored. This study addressed this gap by systematically investigating these interactions and their effect on solvent permeation, solute distribution, and solvation-induced electrification, through the utilization of an innovative polydimethylsiloxane (PDMS) composite membrane. Our findings revealed that the solvent-mediated reciprocal actions result in different surface charge of the membrane in different solvents, leading to the solute rejection variation. Moreover, the discrepancy in the relative energy difference between the solvent and membrane contributed to variations in solvent permeance. The developed PDMS composite membrane achieved significantly enhanced solvent permeance and solute distribution, while its charged characteristics facilitated effective purification of charged contaminants beyond size exclusion limits. Remarkably, this PDMS composite membrane achieved ethyl acetate permeance up to eight times greater than current state-of-the-art polymeric OSN membranes, and demonstrated substantial dye rejection capabilities. This study offers fresh perspectives on optimizing OSN membrane performance for specific solvent-solute systems, highlighting its significance in advancing high-performance membrane technologies.</div></div>","PeriodicalId":368,"journal":{"name":"Journal of Membrane Science","volume":"724 ","pages":"Article 123964"},"PeriodicalIF":8.4,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143628067","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}