{"title":"A low-carbon resource recycling pathway: cellulose nanocrystals (CNCs) membranes derived from waste paper pulp for efficient surface water treatment","authors":"Aiming Ding, Ying Wang, Zihan Liu, Shirong Li, Heng Liang, Langming Bai","doi":"10.1016/j.memsci.2025.124451","DOIUrl":"10.1016/j.memsci.2025.124451","url":null,"abstract":"<div><div>In this work, a resource reuse and environmentally friendly production pathway was demonstrated that extracting sustainable materials cellulose nanocrystals (CNCs) from waste paper pulp and fabricate CNCs membranes with hydrophilic surfaces and negative charges. CNCs membranes was formed through chiral structure of CNCs particles combined with polyvinyl alcohol (PVA) and crosslinked with glutaraldehyde, exhibiting high permeation flux (7–25.2 Lm<sup>−2</sup>h<sup>−1</sup>bar<sup>−1</sup>), excellent separation efficiency and antifouling performance against natural organic matter (NOM). Three combined cake-filtration models were applied to investigate the fouling behavior of the CNCs membranes. Notably, although the fouling behavior of CNCs membranes was consistent with cake filtration-complete blockage model (CFCBM), the contribution from cake layer precipitation was observed to be greater than that of pore-blocking mechanisms. Moreover, life cycle assessment (LCA) was conducted to evaluate the environmental impact of CNCs membranes, revealing that CNCs membranes exhibited lower environmental impact level and technoeconomic cost. This work introduces a novel approach to the design and application of sustainable materials in membrane fabrication.</div></div>","PeriodicalId":368,"journal":{"name":"Journal of Membrane Science","volume":"734 ","pages":"Article 124451"},"PeriodicalIF":8.4,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144694543","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}
Marie Arnould , Magali Albignac , Alexandra Ter-Halle , Cécile Formosa-Dague , Christel Causserand , Patrice Bacchin
{"title":"Modeling fouling kinetics for experiments with transmission varying during filtration","authors":"Marie Arnould , Magali Albignac , Alexandra Ter-Halle , Cécile Formosa-Dague , Christel Causserand , Patrice Bacchin","doi":"10.1016/j.memsci.2025.124441","DOIUrl":"10.1016/j.memsci.2025.124441","url":null,"abstract":"<div><div>Analyzing fouling mechanisms during membrane filtration using modeling approaches is often essential to identify ways to reduce the impact of fouling. However, in some cases, fouling modeling is made difficult because the progressive formation of a deposit modifies the transmission of species across the membrane (membrane selectivity) and therefore the flux of species accumulated on the membrane (fouling kinetics). A model is developed to describe the kinetics of fouling coupled with the change in selectivity induced by fouling. The originality of this model lies in the fact that it considers that the transmission of species changes as a result of the formation of deposits, where classic models consider transmission as constant. The model is compared with filtration experiments performed using a mixture of latex particles of different diameters on microfiltration membranes in the case where some of particles are smaller than the membrane pore size. It proves capable of describing both the fouling kinetics of and the time evolution of particle transmission. In addition, the model describes the variations frequently obtained when plotting the second derivative against the first derivative of filtration kinetics. Applying the model to different membranes (same announced pore size, different materials) reveals that variations in fouling behavior can be linked to differences in their internal porous structures, which influence their capacity for in depth accumulation prior to deposit formation.</div></div>","PeriodicalId":368,"journal":{"name":"Journal of Membrane Science","volume":"734 ","pages":"Article 124441"},"PeriodicalIF":9.0,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144723082","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}
Kai Miao , Shiyuan Liu , Hengxin Li , Kecheng Guan , Dong Zou , Hideto Matsuyam
{"title":"Efficient construction and transfer mechanism of high-flux ceramic membranes for membrane distillation","authors":"Kai Miao , Shiyuan Liu , Hengxin Li , Kecheng Guan , Dong Zou , Hideto Matsuyam","doi":"10.1016/j.memsci.2025.124445","DOIUrl":"10.1016/j.memsci.2025.124445","url":null,"abstract":"<div><div>Ceramic membranes have great potential to be used for treating saline water via membrane distillation. However, ceramic membranes with high transfer resistance always lead to the low water flux compared with polymer membranes. To decrease the mass transfer resistance and improve the water flux, a novel “transferring” method was proposed to fabricate high-flux ceramic membranes by finely-tuning the vapor water transfer resistance in this work. It was demonstrated that increasing the pore size of ceramic support and decreasing the thickness of membrane layer can effectively reduce the transfer resistance and improve the water flux. Furthermore, the ceramic support pore size and membrane layer thickness were mainly regulated and investigated. Specifically, computational fluid dynamics (CFD) simulation and theoretical collision behavior of water vapor molecules were conducted to clarify the transfer mechanism of ceramic membrane in membrane distillation. The maximum water flux of the resulting SiC membranes was 32.05 kg⋅m<sup>−2</sup>⋅h<sup>−1</sup> in the treatment of saline water with the salt rejection of 99.96%, which showed superiority compared with the literature. In general, this work provided an important strategy to fabricate high-permeance ceramic membranes for membrane distillation.</div></div>","PeriodicalId":368,"journal":{"name":"Journal of Membrane Science","volume":"734 ","pages":"Article 124445"},"PeriodicalIF":8.4,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144686424","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}
Jessica Alexandra Talamo Ruiz, Parnian Kianfar, Sara Dalle Vacche, Roberta Bongiovanni, Alessandra Vitale
{"title":"Hydrophobic/oleophilic nanofibrous membranes for oil/water separation by suspension electrospinning and PDMS photo-induced grafting","authors":"Jessica Alexandra Talamo Ruiz, Parnian Kianfar, Sara Dalle Vacche, Roberta Bongiovanni, Alessandra Vitale","doi":"10.1016/j.memsci.2025.124457","DOIUrl":"10.1016/j.memsci.2025.124457","url":null,"abstract":"<div><div>This study presents a simple and efficient method for fabricating rubber nanofibrous membranes for oil/water separation. The process involves suspension electrospinning of styrene-butadiene rubber (SBR) latex, followed by photo-induced crosslinking to ensure insolubility and shape stability, as well as photo-induced grafting to achieve durable hydrophobicity and oleophilicity. A vinyl-terminated polydimethylsiloxane (PDMS) functionalizing agent was grafted onto the nanofibers through a thiol-ene reaction, under various functionalization conditions (e.g., solution concentrations and immersion times). FT-IR analyses confirmed successful functionalization: the resulting PDMS-grafted membranes exhibited well-defined, uniform, cylindrical fibers with an average diameter of 439 nm, a high surface area, and a structure composed of partially fused rubber nanoparticles. Contact angle measurements demonstrated stable hydrophobicity (water contact angle of 123° after 30 min, water-in-oil contact angle of 122° after 24 h) and strong oleophilicity (oil contact angle <10°). The membranes effectively separated oil from water, achieving an average separation efficiency of 99.3 % and an oil flux of 988 L m<sup>−2</sup> h<sup>−1</sup> after 20 filtration cycles of an oil/water mixture. These results highlight the potential of hydrophobic/oleophilic PDMS-functionalized rubber nanofibrous membranes for oily wastewater treatment and environmental remediation applications.</div></div>","PeriodicalId":368,"journal":{"name":"Journal of Membrane Science","volume":"734 ","pages":"Article 124457"},"PeriodicalIF":8.4,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144679252","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}
Zhixiao Liu, Yuhang Zhao, Mingli Yi, Lintao Liao, Yangyang Huang, Guangqiu Lei, Gao Hu, Mayu Lan, Huiping Li, Zhiming Mi
{"title":"Preparation of high-permeance polyester nanofiltration membranes utilizing biobased phloretin derivatives for antibiotic separation","authors":"Zhixiao Liu, Yuhang Zhao, Mingli Yi, Lintao Liao, Yangyang Huang, Guangqiu Lei, Gao Hu, Mayu Lan, Huiping Li, Zhiming Mi","doi":"10.1016/j.memsci.2025.124458","DOIUrl":"10.1016/j.memsci.2025.124458","url":null,"abstract":"<div><div>Antibiotics in water bodies pose a significant threat to the health of plants, animals, and humans, thereby contributing to severe ecological crises. Polyamide nanofiltration (NF) membranes are extensively employed for the separation and purification of antibiotics but are limited by relatively low permeation fluxes. In this study, three biobased phloretin derivatives—phloretin (Pt), phlorizin (Pz), and naringenin dihydrochalcone (Ng), were selected as water-phase monomers and reacted with trimesoyl chloride to fabricate three novel polyester NF membranes. The results demonstrated that the variations in the molecular structure gradients, including twisted conformation and molecular weight, of the three derivatives significantly influenced the structure and properties of polyester NF membranes. In-depth mechanistic analysis revealed that the diffusion rates (mainly related to molecular weight) of the three derivatives into the oil-phase solution, rather than their reactivity with TMC, governed the interfacial polymerization (IP) process. Consequently, Pt-based polyester NF membranes exhibited relatively dense layers compared to Pz- and Ng-based ones, achieving rejections of 92.4 % and 85.7 % for bacitracin and erythromycin, respectively, while maintaining a permeance of 35.2 L/m<sup>2</sup> h bar, which was significantly higher than that of conventional polyamide NF membranes. Meanwhile, the relatively loose structure of the Pz- and Ng-based polyester NF membranes made their permeance reach as high as 65.8 L/m<sup>2</sup>·h·bar and 107.2 L/m<sup>2</sup> h bar, respectively, while maintaining intermediate separation level for five antibiotic molecules. Furthermore, the three polyester NF membranes demonstrated excellent chlorine resistance, antifouling properties, and good environmental adaptability. The three biobased polyester NF membranes in this study offer a novel approach for the development of high-flux NF membranes for antibiotic separation and other specialized scenarios. The correlation between the molecular structure of the derivatives and the membrane separation performance further deepens the understanding of polyester-based IP theory.</div></div>","PeriodicalId":368,"journal":{"name":"Journal of Membrane Science","volume":"734 ","pages":"Article 124458"},"PeriodicalIF":8.4,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144654396","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}
Tieyan Li , Sen Li , Yingzhou Lu , Chunxi Li , Hongwei Fan , Hong Meng
{"title":"In situ symbiosed graphdiyne-based mixed matrix membranes for efficient ethanol recovery","authors":"Tieyan Li , Sen Li , Yingzhou Lu , Chunxi Li , Hongwei Fan , Hong Meng","doi":"10.1016/j.memsci.2025.124449","DOIUrl":"10.1016/j.memsci.2025.124449","url":null,"abstract":"<div><div>Mixed matrix membranes, which combine the advantages of polymer and inorganic membranes, have attracted significant attention in ethanol-selective pervaporation, but interfacial compatibility and scale-up fabrication remain critical challenges. Here, we propose an innovative “in situ symbiosis” synthesis strategy to directly assemble tris(4-ethynylphenyl) amine-graphdiyne (TPNGDY) in the polymer solution. The wrapping of PDMS chains promotes uniform dispersion of TPNGDY, while the rigid framework of TPNGDY restricts the movement of PDMS chains and mitigates excessive aggregation. This synergistic design not only enhances interfacial compatibility but also optimizes molecular diffusion transport channels, leading to a significant improvement in mass transfer efficiency. The resulting TPNGDY/PDMS MMMs exhibit excellent performance in pervaporation. When separating 5.0 wt% ethanol-water solution at 60 °C, the membranes exhibit an ultra-high flux of 7.42 kg m<sup>−2</sup> h<sup>−1</sup> and a separation factor of 10.79, corresponding to an 9.76 % increase in flux and a 127.16 % enhancement in selectivity compared to pristine PDMS membranes. Notably, defect-free industrial-scale membranes (1 m × 1 m) were successfully fabricated using a roll-coating approach, which overcomes the limitations of laboratory-scale fabrication. This work provides a practical and feasible solution to addressing filler-polymer interfacial compatibility and large-scale membrane fabrication.</div></div>","PeriodicalId":368,"journal":{"name":"Journal of Membrane Science","volume":"734 ","pages":"Article 124449"},"PeriodicalIF":8.4,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144654496","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}
Boyang Hui , Yuwei Wang , Yanhong Ji , Hong Wang , Jinjin Liu , Benqiao He
{"title":"Lithium separation from NCM LIBs HCl leachate through electro-nanofiltration","authors":"Boyang Hui , Yuwei Wang , Yanhong Ji , Hong Wang , Jinjin Liu , Benqiao He","doi":"10.1016/j.memsci.2025.124453","DOIUrl":"10.1016/j.memsci.2025.124453","url":null,"abstract":"<div><div>Nanofiltration (NF) has shown significant potential in the lithium ions (Li<sup>+</sup>) separation from the acidic leachates of spent lithium-ion batteries (LIBs). However, in strongly acidic leachates, the Li<sup>+</sup> ions were often highly rejected (>60 %), ultimately reducing Li<sup>+</sup> separation efficiency. In this work, an electro-NF (ENF) technology was employed to enhance Li<sup>+</sup> separation from the HCl leachates of spent Ni–Co–Mg (NCM) LIBs. It was found that the initial H<sup>+</sup> concentration in the feed solution and the voltage during ENF affected the pH changes of both feed and permeate solutions, Zeta potential of the NF membrane used, and then the separation performance. A weak acidic feed solution (pH 3.5–5.4) was beneficial for deprotonation and promoted the complexation of the divalent cations on the NF membrane surface to raise the Zeta potential, significantly improving the rejection of the divalent cations. The electric field enhanced the complexation and adjusted the pH on the both sides of the NF membrane through electrochemical reaction. An excellent Li<sup>+</sup> separation from the NCM LIBs HCl leachate (pH 3.5) was achieved at 3 V: Li<sup>+</sup> permeation >100 % (a higher Li<sup>+</sup> concentration in the permeate than that in the feed solution), rejection of divalent cations (Ni<sup>2+</sup>, Co<sup>2+</sup>, Mn<sup>2+</sup>) > 99.9 %, a separation factor (Li/(Ni,Co,Mn) of 233.0, stable flux (37.4 ± 3.4 L m<sup>−2</sup> h<sup>−1</sup> at 5 bar) for 720 min, which was far higher than those in literature. The ENF technology addressed the limitations of common NF in separating Li<sup>+</sup> from acid leachate of spent LIBs to simultaneously achieve a high divalent ion rejection and a high Li<sup>+</sup> permeation.</div></div>","PeriodicalId":368,"journal":{"name":"Journal of Membrane Science","volume":"734 ","pages":"Article 124453"},"PeriodicalIF":8.4,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144654389","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}
Zhichao Huang , Ting Wu , Jingqiang Zeng , Zhen Sun , Siyu Xiong , Longwei Zhang , Bo Liu , Meihua Zhu , Fei Zhang , Xiangshu Chen , Hidetoshi Kita
{"title":"Efficient preparation of large-area, high-selective SSZ-13 membrane","authors":"Zhichao Huang , Ting Wu , Jingqiang Zeng , Zhen Sun , Siyu Xiong , Longwei Zhang , Bo Liu , Meihua Zhu , Fei Zhang , Xiangshu Chen , Hidetoshi Kita","doi":"10.1016/j.memsci.2025.124456","DOIUrl":"10.1016/j.memsci.2025.124456","url":null,"abstract":"<div><div>Rub-coating and vacuum assisted dip-coating, are two conventional seeding methods in the preparation of zeolite membranes. Herein, we successfully synthesized SSZ-13 membrane with an effective area of 142.4 cm<sup>2</sup> and a length of 40 cm on α-alumina support by combining a vacuum-assisted dip-coating method and a rub-coating method. An investigation was conducted into the effects of five distinct seeding methods on the fabrication of SSZ-13 membranes. A thin, uniform and continuous seed layer was obtained through two distinct seeding methods: vacuum assisted dip-coating followed by rubbing the dried seeded support (referred to as VADC-rub1) and vacuum assisted dip-coating followed by rubbing the seeded support within the dipping solution (referred to as VADC-rub2), and the as-synthesized membranes were dense and uniform with thin membrane thickness (1.3–1.8 μm). Following the division of the 40 cm long SSZ-13 membrane into four 10 cm long SSZ-13 membranes, the characterizations of these membranes were conducted via XRD, SEM. In addition, single-gas permeation and CO<sub>2</sub>-CH<sub>4</sub> mixture separation was performed. CO<sub>2</sub> and CH<sub>4</sub> had average permeances of (7.80 ± 2.23) × 10<sup>−7</sup> mol m<sup>−2</sup> s<sup>−1</sup>·Pa<sup>−1</sup>, (1.36 ± 0.25) × 10<sup>−9</sup> mol m<sup>−2</sup> s<sup>−1</sup>·Pa<sup>−1</sup> in equimolar mixture, respectively and CO<sub>2</sub>-CH<sub>4</sub> mixture selectivity was 561 ± 68, further confirming the membranes formed on four different positions of 40-cm-long were uniform, dense and of high-quality, showing their potential for gas separation applications.</div></div>","PeriodicalId":368,"journal":{"name":"Journal of Membrane Science","volume":"734 ","pages":"Article 124456"},"PeriodicalIF":8.4,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144654488","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}
Hui Shi , Qiuyang Zuo , Congcong Liu , Xuan Ding , Zhiwei Wang , Penghui Shao , Liming Yang , Xubiao Luo
{"title":"Interchain regulation actuated bifunctional conjugated polymer membrane for efficient precious metal recovery from water","authors":"Hui Shi , Qiuyang Zuo , Congcong Liu , Xuan Ding , Zhiwei Wang , Penghui Shao , Liming Yang , Xubiao Luo","doi":"10.1016/j.memsci.2025.124442","DOIUrl":"10.1016/j.memsci.2025.124442","url":null,"abstract":"<div><div>Membrane technology plays a vital role in mitigating the risk of supply disruptions due to the scarcity of precious metals critical for various applications. However, the trade-off between permeability and rejection of membranes is limited by structural constraints within aggregation domains and inherent performance inefficiencies. Herein, we proposed an interchain modulation strategy in reductive conjugated polymer membranes to enhance precious metal recovery from water. The introduction of charge-rich mediators utilized the π-electron dispersion effect to adjust the overall order of the molecules, which served as sub-nano channels to accelerate water transport and electron transfer in the membranes. These mechanisms synergistically enabled state-of-the-art Ag(I) reduction rate (96.9 %), with more than doubled increase in flux and interception simultaneously, thereby achieving exceptional silver selectivity from wastewater generated by strategic emerging industries. Our results offer a versatile design blueprint for developing reductive bifunctional membranes, promoting the sustainable utilization of precious metals.</div></div>","PeriodicalId":368,"journal":{"name":"Journal of Membrane Science","volume":"734 ","pages":"Article 124442"},"PeriodicalIF":8.4,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144663613","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}
Ning Yu , Tianxiang Wang , Mengfan Wang , Niamat Ullah , Qiyu Duan , Bo Wu , Genghao Gong , Yunxia Hu , Shao-Lu Li
{"title":"High performance microporous polyesteramide organic solvent nanofiltration composite membrane prepared from a twisted diamono-diphenol monomer","authors":"Ning Yu , Tianxiang Wang , Mengfan Wang , Niamat Ullah , Qiyu Duan , Bo Wu , Genghao Gong , Yunxia Hu , Shao-Lu Li","doi":"10.1016/j.memsci.2025.124452","DOIUrl":"10.1016/j.memsci.2025.124452","url":null,"abstract":"<div><div>Organic solvent nanofiltration (OSN) is a promising, energy-efficient separation technique for molecular separations and solute enrichment in organic media. However, the facile construction of high-performance and stable OSN membranes remains a persistent challenge. Here, we report a newly developed microporous composite membrane with exceptional perm-selectivity, achieved by employing a new aqueous phase monomer, 9,9-bis(3-amino-4-hydroxyphenyl)fluorene (BAHPF), which features two amino and two phenolic reactive groups, through interfacial polymerization (IP) with trimesoyl chloride (TMC). Ultrathin polyesteramide nanofilms with thicknesses less than 20 nm were achieved. The rigid, twisted, and multifunctional characteristics of BAHPF monomer endowed the resulting polyesteramide layer with significantly improved microporosity and a highly interconnected polymeric network voids. As a result, the optimized BAHPF/TMC membrane demonstrated a methanol permeance of up to 17.9 ± 1.8 LMH/bar, while preserving a low MWCO of 298 Da, surpassing the performance of most reported polymeric OSN membranes. Furthermore, the membrane exhibited excellent long-term operational stability and achieved high retention capacities (>98 %) for three model small-molecule drugs. Notably, the heat-sensitive drug rifampicin was effectively concentrated by ∼14-fold, from 50 ppm to ∼700 ppm, within 5 h. Overall, this work offers novel insight into the material design approach for developing next-generation high-performance organic solvent nanofiltration membranes.</div></div>","PeriodicalId":368,"journal":{"name":"Journal of Membrane Science","volume":"734 ","pages":"Article 124452"},"PeriodicalIF":8.4,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144654493","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}