Journal of Membrane Science最新文献_第6页

Transition state theory unveils enthalpy–entropy interplay in polyamide nanocomposite membranes for enhanced water–salt selectivity 过渡态理论揭示了聚酰胺纳米复合膜中增强水盐选择性的焓熵相互作用

IF 9 1区工程技术

Journal of Membrane Science Pub Date : 2026-04-01 Epub Date: 2026-01-29 DOI: 10.1016/j.memsci.2026.125222

Jiujing Xu , Cheng Chen , Rukang Jiang , Bisheng Li , Leihong Zhao , Liguo Shen , Hongjun Lin

{"title":"Transition state theory unveils enthalpy–entropy interplay in polyamide nanocomposite membranes for enhanced water–salt selectivity","authors":"Jiujing Xu , Cheng Chen , Rukang Jiang , Bisheng Li , Leihong Zhao , Liguo Shen , Hongjun Lin","doi":"10.1016/j.memsci.2026.125222","DOIUrl":"10.1016/j.memsci.2026.125222","url":null,"abstract":"<div><div>Polyamide nanocomposite membranes are promising for seawater desalination, yet the molecular mechanisms governing water and solute transport remain unclear. Here, we synthesized a conjugated microporous polymer (IPA–PPA) and embedded it within the interlayer of polyamide thin-film nanocomposite (CMP–TFN) membranes. Using transition state theory and the Eyring equation, we deconvoluted intrinsic water and ion permeability into enthalpic and entropic contributions to probe the molecular basis of water–salt selectivity. The partially protruding, intrinsically microporous IPA–PPA generated additional nanoscale transport channels and modified polyamide morphology and surface charge, thereby lowering mass-transfer resistance. As a result, CMP–TFN membranes achieved high Na<sub>2</sub>SO<sub>4</sub> rejection (98.4 %) alongside enhanced water flux, antifouling performance, and long-term stability. Transition state analysis revealed that increased water transport was driven by higher activation entropy (<em>ΔS</em><sup><em>‡</em></sup>), whereas stronger solute rejection correlated with elevated activation enthalpy (<em>ΔH</em><sup><em>‡</em></sup>). The synergy between enlarged pore structures (increasing <em>ΔS</em><sup><em>‡</em></sup>) and stronger surface charge (increasing <em>ΔH</em><sup><em>‡</em></sup>) collectively modulated ion transport, ultimately improving water–salt selectivity. Our findings demonstrate that enthalpy–entropy interplay underpins water–ion discrimination in polyamide nanocomposite membranes, enabling high selectivity.</div></div>","PeriodicalId":368,"journal":{"name":"Journal of Membrane Science","volume":"744 ","pages":"Article 125222"},"PeriodicalIF":9.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146076256","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}

引用次数: 0

Highly conductive and durable SPEEK composite membrane for vanadium flow battery manipulated by side-chain sulfonated poly(ether-block-amide) copolymer 用于钒液流电池的高导电性和耐用性SPEEK复合膜，由侧链磺化聚醚-嵌段酰胺共聚物操纵

IF 9 1区工程技术

Journal of Membrane Science Pub Date : 2026-04-01 Epub Date: 2026-02-06 DOI: 10.1016/j.memsci.2026.125262

Xinrui Cui , Shasha Shi , Haixia Wang , Chaolong Ruan , Bing Li , Haifeng Shi

{"title":"Highly conductive and durable SPEEK composite membrane for vanadium flow battery manipulated by side-chain sulfonated poly(ether-block-amide) copolymer","authors":"Xinrui Cui , Shasha Shi , Haixia Wang , Chaolong Ruan , Bing Li , Haifeng Shi","doi":"10.1016/j.memsci.2026.125262","DOIUrl":"10.1016/j.memsci.2026.125262","url":null,"abstract":"<div><div>A series of highly conductive and durable sulfonated poly(ether ether ketone) (SPEEK) composite membranes (S/SPEBAX) have been prepared by the solution casting method, with side-chain sulfonated poly(ether-block-amide) (SPEBAX) as the performance-enhanced components. With SPEBAX changing from 1 to 2.5 wt%, the S/SPEBAX series membranes exhibit superior vanadium ion blocking ability, which originates from characteristic hard-soft segmental structure, hydrophobic-hydrophilic microdomains, and acid-base interactions within the polymeric matrix. Compared to Nafion 212 and SPEEK membranes, the S/SPEBAX-2 membrane presents the highest conductivity (32.4 mS cm<sup>−1</sup>) and the lowest vanadium permeability (6.89 × 10<sup>−7</sup> cm<sup>2</sup> min<sup>−1</sup>). And, a significantly improved battery efficiency, including 96.6-98.8% coulombic efficiency and 83.5-72.0% energy efficiency, further elucidates its stable proton conductive channel and strengthened intermolecular interactions, which are contributed by the hard-soft structured segments in the SPEBAX polymer. Also, the self-discharge time at 88.5 h and the stable 300 cycles at 150 mA cm<sup>−2</sup> demonstrate better cyclic stability and long-term duration performance. Thus, the as-prepared S/SPEBAX membranes prove an outstanding battery efficiency in terms of hydrophilic microdomains, and main- and side-chain hydrophilic sulfonic acid network and hard-soft segmental structure, thereby proposing the exploration of highly conductive PEM through the modulation of microstructures and ionic domains of block polymers.</div></div>","PeriodicalId":368,"journal":{"name":"Journal of Membrane Science","volume":"745 ","pages":"Article 125262"},"PeriodicalIF":9.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146172385","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}

引用次数: 0

Enhancement of seawater conductivity for MHD devices by a capacitive flow electrode system 电容流动电极系统提高MHD装置海水导电性

IF 9 1区工程技术

Journal of Membrane Science Pub Date : 2026-04-01 Epub Date: 2026-01-29 DOI: 10.1016/j.memsci.2026.125217

Jiyeon Choi , Koyeon Choo , Trinh Nguyen Thi , Seong-Ok Park , Hong-ran Park , Doo-Hee Chang , Dong Kook Kim

{"title":"Enhancement of seawater conductivity for MHD devices by a capacitive flow electrode system","authors":"Jiyeon Choi , Koyeon Choo , Trinh Nguyen Thi , Seong-Ok Park , Hong-ran Park , Doo-Hee Chang , Dong Kook Kim","doi":"10.1016/j.memsci.2026.125217","DOIUrl":"10.1016/j.memsci.2026.125217","url":null,"abstract":"<div><div>This paper proposes a novel approach to enhance seawater electrical conductivity to improve the propulsion performance of marine vehicles using magnetohydrodynamic (MHD) thrust. In order to enhance the electrical conductivity of seawater, conventional methods – such as directly adding strong acids/bases or concentrating salts using CDI-based system–have been explored. However, both approaches are confronted with significant challenges related to chemical handling, corrosion, and limited controllability. This study presents a novel flow-electrode bipolar-membrane electrodialysis (F-BMED) system that facilitates <em>in-situ</em> and continuous acid generation through seawater dissociation under a constant applied voltage, thereby increasing seawater itself conductivity without external chemical addition. The proposed single-cell configuration integrates a bipolar membrane with a pair of anion-exchange membranes, forming an AEM-BPM-AEM type. The conductivity and pH changes in simulated seawater (35,000 ppm) were investigated under a fixed applied voltage across a range of flow rates (1, 5, 10 mL min<sup>−1</sup>). At 1.7 V and 5 mL min<sup>−1</sup> for 30 min, the outlet conductivity increased by approximately 3.5 mS cm<sup>−1</sup> (from 57 mS cm<sup>−1</sup>), corresponding to a pH decrease from 7.0 to 2.4, demonstrating effective <em>in-situ</em> acidification and ΔEC enhancement. Furthermore, the 5 mL min<sup>−1</sup> condition was identified as optimal, achieving high coulombic efficiency (22 %) and low energy consumption (0.595 kWh m<sup>−3</sup>). Based on these feasibility tests, future work will focus on optimizing the internal cell architecture and modular integration strategies to enable scalable F-BMED operation suitable for practical marine MHD propulsion applications.</div></div>","PeriodicalId":368,"journal":{"name":"Journal of Membrane Science","volume":"744 ","pages":"Article 125217"},"PeriodicalIF":9.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146185502","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}

引用次数: 0

Revealing the impact of ultra-high temperature curing on the homogeneity and chemical stability of polyamide nanofiltration membranes 揭示了超高温固化对聚酰胺纳滤膜均匀性和化学稳定性的影响

IF 9 1区工程技术

Journal of Membrane Science Pub Date : 2026-04-01 Epub Date: 2026-02-03 DOI: 10.1016/j.memsci.2026.125234

Shi-Chao Li , Hang-Bo Zhang , Zhen-Liang Xu, LiWei Zhuang, Yong-Jian Tang

{"title":"Revealing the impact of ultra-high temperature curing on the homogeneity and chemical stability of polyamide nanofiltration membranes","authors":"Shi-Chao Li , Hang-Bo Zhang , Zhen-Liang Xu, LiWei Zhuang, Yong-Jian Tang","doi":"10.1016/j.memsci.2026.125234","DOIUrl":"10.1016/j.memsci.2026.125234","url":null,"abstract":"<div><div>Thermal curing following interfacial polymerization (IP) serves a crucial procedure in the industrial manufacturing of nanofiltration (NF) membranes. While conventional thermal curing enhances membrane performance to some extent, the effects of ultra-high temperature curing remain unexplored. In this study, polyamide (PA) NF membranes were thermally cured at 60 °C, 120 °C, and 180 °C (designated as NF-60, NF-120, and NF-180, respectively), followed by systematic characterization via experimental analyses and numerical simulations. The results indicated that after immersion in 20 wt% H<sub>2</sub>SO<sub>4</sub> at 60 °C for 1 h, the Na<sub>2</sub>SO<sub>4</sub> rejection of NF-60 decreased sharply from 99.02% to 68.75%, whereas NF-120 and NF-180 exhibited lower reductions of 8.85% and 4.95%, respectively. Analogous trends were observed following alkaline and active chlorine treatments. Additionally, compared to NF-60, NF-180 demonstrated reduced Na<sub>2</sub>SO<sub>4</sub> rejection dispersion (from 0.103 to 0.031) and flux dispersion (from 0.264 to 0.103). Numerical simulations further elucidated that ultra-high temperature curing improved membrane uniformity by shifting heat transfer dominance from convection to radiation, thereby minimizing localized cooling regions and enabling more uniform thermal distribution. Collectively, this study provides the first evidence of simultaneous improvements in chemical stability and homogeneity through ultra-high temperature curing, offering a novel strategy for producing highly stable and efficient NF membranes at an industrial scale.</div></div>","PeriodicalId":368,"journal":{"name":"Journal of Membrane Science","volume":"744 ","pages":"Article 125234"},"PeriodicalIF":9.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146185505","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}

引用次数: 0

Synergistic sulfur-induced porosity and silver π-complexation for enhanced ethylene/ethane separation in carbon molecular sieve membranes 硫致孔隙和银π络合促进碳分子筛膜中乙烯/乙烷的分离

IF 9 1区工程技术

Journal of Membrane Science Pub Date : 2026-04-01 Epub Date: 2026-01-29 DOI: 10.1016/j.memsci.2026.125226

Lu Bai, Zeyuan Gao, Fangxu Fan, Tianyou Li, Shuang Zhang, Peiyao Niu, Linxuan Wei, Siyao Wang, Jingyu Li, Yongchao Sun, Gaohong He, Canghai Ma

{"title":"Synergistic sulfur-induced porosity and silver π-complexation for enhanced ethylene/ethane separation in carbon molecular sieve membranes","authors":"Lu Bai, Zeyuan Gao, Fangxu Fan, Tianyou Li, Shuang Zhang, Peiyao Niu, Linxuan Wei, Siyao Wang, Jingyu Li, Yongchao Sun, Gaohong He, Canghai Ma","doi":"10.1016/j.memsci.2026.125226","DOIUrl":"10.1016/j.memsci.2026.125226","url":null,"abstract":"<div><div>Carbon molecular sieve (CMS) membranes, with their intrinsic microporous and ultramicroporous structures, enable rapid gas transport while achieving precise molecular separation. However, their performance in separating similarly sized ethylene and ethane (C<sub>2</sub>H<sub>4</sub>/C<sub>2</sub>H<sub>6</sub>) remains challenging, as precise control over pore architecture and chemical environments is difficult, limiting broader industrial applicability. In this work, we proposed a strategy of incorporating sulfur and silver ions into a 6FDA-APBO polymer precursor to create high-performance CMS membranes. The resulting 6FDA-APBO–S–Ag CMS membrane, containing both metallic silver (Ag<sup>0</sup>) and silver sulfide (Ag<sub>2</sub>S), exhibited a C<sub>2</sub>H<sub>4</sub> permeability of 124.1 Barrer and a C<sub>2</sub>H<sub>4</sub>/C<sub>2</sub>H<sub>6</sub> selectivity of 21.4, surpassing the C<sub>2</sub>H<sub>4</sub>/C<sub>2</sub>H<sub>6</sub> upper bound. This enhancement arises from the synergistic functions of sulfur and silver ions: sulfur acts as a pore-forming agent during pyrolysis, mitigating pore blockage by silver particles, whereas silver species (both Ag<sup>0</sup> and Ag<sub>2</sub>S) establish reversible π-complexation with the C<img>C bonds of C<sub>2</sub>H<sub>4</sub> to boost selectivity. This approach offers a promising strategy for developing high-performance CMS membranes for energy-efficient C<sub>2</sub>H<sub>4</sub>/C<sub>2</sub>H<sub>6</sub> separation.</div></div>","PeriodicalId":368,"journal":{"name":"Journal of Membrane Science","volume":"744 ","pages":"Article 125226"},"PeriodicalIF":9.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146185553","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}

引用次数: 0

Scalable fabrication of ultrastrong two-dimensional polymer nanosheet membranes for proton conduction 用于质子传导的超强二维聚合物纳米片膜的可扩展制备

IF 9 1区工程技术

Journal of Membrane Science Pub Date : 2026-04-01 Epub Date: 2026-01-29 DOI: 10.1016/j.memsci.2026.125218

Lei Han , Haipeng Li , Chunyang Fan , Luhao Tang , Hao Li , Yanan Liu , Zhongyi Jiang

{"title":"Scalable fabrication of ultrastrong two-dimensional polymer nanosheet membranes for proton conduction","authors":"Lei Han , Haipeng Li , Chunyang Fan , Luhao Tang , Hao Li , Yanan Liu , Zhongyi Jiang","doi":"10.1016/j.memsci.2026.125218","DOIUrl":"10.1016/j.memsci.2026.125218","url":null,"abstract":"<div><div>Two-dimensional polymer (2DP) nanosheets with good solution processability make themselves promising building blocks for high-performance proton exchange membranes (PEMs), but their synthesis remains a daunting task. Here, we develop a non-stoichiometric strategy for scalable synthesis of carboxyl-functionalized 2DP nanosheets with high concentration (5.4 mg mL<sup>−1</sup>, 400 mL). The effect of molar ratio on the morphology and structure of 2DP nanosheets was deeply studied. Moreover, the solution-processable 2DP nanosheets with high aspect ratio (∼1546) can be easily assembled into large-area membranes (400 cm<sup>2</sup>) via solution casting method. The obtained membranes with abundant carboxyl groups demonstrate remarkable stability in various organic solvents, good mechanical stability, oxidative stability and dimensional stability. Particularly, the optimized membranes with suitable molar ratio can afford good proton conduction performance (176.12 mS cm<sup>−1</sup>, 90 °C, 95 % relative humidity) with low ion exchange capacity (0.326 mmol g<sup>−1</sup>) and a superhigh mechanical strength (180.36 MPa), simultaneously. Critically, these properties are maintained in a large-area (400 cm<sup>2</sup>) membrane, which shows excellent performance (295.76 mS cm<sup>−1</sup>, 168.70 MPa). The non-stoichiometric method reported here may open a new avenue for synthesizing 2DP nanosheets and membranes appealed to widespread fields of applications.</div></div>","PeriodicalId":368,"journal":{"name":"Journal of Membrane Science","volume":"744 ","pages":"Article 125218"},"PeriodicalIF":9.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146185548","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}

引用次数: 0

Solvent stable thin-film composite membranes with a COF interlayer for artemisinin enrichment 具有COF中间层的溶剂稳定薄膜复合膜富集青蒿素

IF 9 1区工程技术

Journal of Membrane Science Pub Date : 2026-04-01 Epub Date: 2026-02-07 DOI: 10.1016/j.memsci.2026.125235

Boyuan Hao , Xiao Yue , Brian Wander , Xiang Li , Mengjiao Zhai , Zhiwei Jiang , Andrew Livingston , Kang Li

{"title":"Solvent stable thin-film composite membranes with a COF interlayer for artemisinin enrichment","authors":"Boyuan Hao , Xiao Yue , Brian Wander , Xiang Li , Mengjiao Zhai , Zhiwei Jiang , Andrew Livingston , Kang Li","doi":"10.1016/j.memsci.2026.125235","DOIUrl":"10.1016/j.memsci.2026.125235","url":null,"abstract":"<div><div>Organic solvent nanofiltration (OSN) is an energy-efficient method for pharmaceutical separation that preserves bioactivity while enabling solvent recycling. Polyamide (PA) thin-film composite (TFC) membranes have demonstrated great potential for this application because of their easy fabrication, robust stability in solvents, and excellent separation performance. However, achieving controllable interfacial polymerization (IP) of the PA layer on a solvent-resistant support remains a challenge. To address this issue, a sulfonated COF–Na<sup>+</sup> interlayer was developed and deposited onto nylon, providing a smooth and uniform surface that facilitates the formation of a continuous and defect-free PA layer. The resulting membrane exhibited a high methanol permeance of 9.95 L m<sup>−2</sup> h<sup>−1</sup> bar<sup>−1</sup> with excellent rejection above 94% for both charged and uncharged molecules. This approach was successfully applied to both organic and inorganic microfiltration substrates, demonstrating that this COF interlayer effectively eliminates variations in support materials by providing a uniform and smooth surface for the IP process. In this work, the resulting membrane demonstrated over 98% artemisinin rejection in ethanol, making it highly efficient for concentrating artemisinin while simultaneously recycling ethanol, thereby reducing energy consumption and minimizing solvent waste.</div></div>","PeriodicalId":368,"journal":{"name":"Journal of Membrane Science","volume":"745 ","pages":"Article 125235"},"PeriodicalIF":9.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146172377","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}

引用次数: 0

A Janus nanofiltration membrane synergistically constructed by a CNC–COOH interlayer and crown–ether channels for high-efficiency lithium extraction 以CNC-COOH夹层和冠醚通道协同构建的Janus纳滤膜用于高效锂提取

IF 9 1区工程技术

Journal of Membrane Science Pub Date : 2026-04-01 Epub Date: 2026-01-27 DOI: 10.1016/j.memsci.2026.125208

Zhicheng Wang , Tiansheng Gao , Yuqian Yang , Zizhen Peng , Wenzhong Ma , Qiuyan Bi , Yakai Lin , Hideto Matsuyama

{"title":"A Janus nanofiltration membrane synergistically constructed by a CNC–COOH interlayer and crown–ether channels for high-efficiency lithium extraction","authors":"Zhicheng Wang , Tiansheng Gao , Yuqian Yang , Zizhen Peng , Wenzhong Ma , Qiuyan Bi , Yakai Lin , Hideto Matsuyama","doi":"10.1016/j.memsci.2026.125208","DOIUrl":"10.1016/j.memsci.2026.125208","url":null,"abstract":"<div><div>The increasing demand for lithium resources highlights the need for nanofiltration (NF) membranes with high permeability and selectivity for processing salt-lake brines. In this study, an ultrathin Janus NF membrane featuring Li<sup>+</sup>-selective nanochannels was fabricated via interfacial polymerization for Li<sup>+</sup>/Mg<sup>2+</sup> separation. Carboxylated cellulose nanocrystals (CNC–COOH) were deposited onto a polyvinylidene fluoride (PVDF) substrate to form an interlayer, and 15-crown-5 (15-C-5) was incorporated into the polyamide (PA) layer, yielding the PVDF/CCNC–15C5-PA membrane. The CNC–COOH interlayer increased membrane hydrophilicity and surface negative charge, and synergistically interacted with 15-C-5 to enhance the interaction with polyethyleneimine, resulting in a thin, defect-free PA layer of approximately 63 nm. Meanwhile, 15-C-5 formed host–guest complexes with Li<sup>+</sup>, establishing Li<sup>+</sup>-selective nanochannels that promoted Li<sup>+</sup> transport. The combined modifications yielded a PVDF/CCNC–15C5-PA membrane with a water permeance of 15.4 L m<sup>−2</sup> h<sup>−1</sup>·bar<sup>−1</sup> and a Li<sup>+</sup>/Mg<sup>2+</sup> separation factor of 17.8. This work presents a dual-functional design strategy that integrates interfacial engineering with molecular recognition for advanced ion-selective separation.</div></div>","PeriodicalId":368,"journal":{"name":"Journal of Membrane Science","volume":"745 ","pages":"Article 125208"},"PeriodicalIF":9.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146116633","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}

引用次数: 0

Biomimetic mineralization BSA@ZIF-8 composites for the fabrication of membranes with enhanced chiral separation performance 仿生矿化BSA@ZIF-8复合材料制备具有增强手性分离性能的膜

IF 9 1区工程技术

Journal of Membrane Science Pub Date : 2026-04-01 Epub Date: 2026-01-29 DOI: 10.1016/j.memsci.2026.125219

Ruoman Ji , Lijuan Gao , Yibo Zan , Xingchi Zhang , Qing Zhao , Ting Wang

{"title":"Biomimetic mineralization BSA@ZIF-8 composites for the fabrication of membranes with enhanced chiral separation performance","authors":"Ruoman Ji , Lijuan Gao , Yibo Zan , Xingchi Zhang , Qing Zhao , Ting Wang","doi":"10.1016/j.memsci.2026.125219","DOIUrl":"10.1016/j.memsci.2026.125219","url":null,"abstract":"<div><div>A novel chiral mixed matrix membrane (MMM) was prepared by biomimetic mineralization to encapsulate bovine serum albumin (BSA) within ZIF-8, followed by film formation. In this process, a new ratio of ZIF-8 material and two biocomposites with different precursor ratios were synthesized via a one-pot co-precipitation method under ambient conditions. BSA@ZIF-8 (Zn<sup>2+</sup>/2-methylimidazolate (2-mIM) = 40:320 mM) demonstrated the optimal separation of 1-phenylethanol (PE), with an enantiomeric excess (<em>ee</em>) of 52.79 %. Subsequently, the combination of BSA@ZIF-8 with polyethersulfone (PES) to form a chiral MMM was investigated, and the effects of the concentration of the feed solution, the proportion of biocomposite in the membrane, the thickness of the membrane and the permeation time of the chirality on the enantiomeric separation were examined. The chiral MMM achieved complete enantioseparation (<em>ee</em> = 100 %). Both the biocomposite-containing membrane and the free biocomposite retained this performance throughout the stability tests, demonstrating that immobilizing BSA within ZIF-8 markedly enhanced the robustness of the biomacromolecule. Finally, molecular docking studies revealed the presence of hydrogen bonding and hydrophobic forces, especially hydrogen bonding, between BSA@ZIF-8 and the racemate, which explained the selective chiral recognition ability of BSA@ZIF-8 towards the racemate PE.</div></div>","PeriodicalId":368,"journal":{"name":"Journal of Membrane Science","volume":"744 ","pages":"Article 125219"},"PeriodicalIF":9.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146185504","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}

引用次数: 0

Fabrication of NH2-MIL-125(Ti) modified photocatalytic forward osmosis membrane for treating tetracycline hydrochloride and ibuprofen solution NH2-MIL-125（Ti）修饰光催化正向渗透膜处理盐酸四环素和布洛芬溶液的制备

IF 9 1区工程技术

Journal of Membrane Science Pub Date : 2026-04-01 Epub Date: 2026-01-27 DOI: 10.1016/j.memsci.2026.125210

Xiaochan An , Yutong Gu , Wenping Wang , Jianxiao Wang , Yongxin Cui , Hongbing Luo , Ke Zhang , Liangqian Fan , Wei Chen

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