Membranes最新文献_第6页

Conducting Polymer-Based Nanofluidic Membranes for Osmotic Energy Conversion. 导电聚合物基纳米流体膜的渗透能量转换。

IF 4.2 4区工程技术

Membranes Pub Date : 2026-09-14 DOI: 10.3390/membranes16090301

Sinuo Zhou, Chengyang Jia, Ying Zhang, Boyu Sun, Xin Xi, Shuhan Yang, Lipeng Liu, Guoyu Zhang, Xiaoyan Nie, Qiang Wang, Siqi Liu, Yanan Xie, Zhenhang Wang

{"title":"Conducting Polymer-Based Nanofluidic Membranes for Osmotic Energy Conversion.","authors":"Sinuo Zhou, Chengyang Jia, Ying Zhang, Boyu Sun, Xin Xi, Shuhan Yang, Lipeng Liu, Guoyu Zhang, Xiaoyan Nie, Qiang Wang, Siqi Liu, Yanan Xie, Zhenhang Wang","doi":"10.3390/membranes16090301","DOIUrl":"10.3390/membranes16090301","url":null,"abstract":"Osmotic energy conversion (blue energy), serving as a sustainable marine renewable energy source, converts Gibbs free energy originating from salt concentration differences into electric power by virtue of ion-selective nanofluidic membranes. Conventional commercial ion-exchange polymer membranes suffer from inherent limitations, including low transmembrane flux, insufficient ion permselectivity, severe interfacial concentration polarization, poor salt tolerance, and unsatisfactory long-term structural stability. These drawbacks greatly restrict the energy conversion efficiency and large-scale engineering application of reverse electrodialysis (RED). Conductive polymers (CPs), mainly including polypyrrole (PPy), polyaniline (PANI), polythiophene (PTh), and their derivatives, possess the distinctive merits of tunable surface charge density and polarity, outstanding electronic conductivity, facile nanochannel structural regulation, and reversible redox responsiveness, making them ideal building blocks for advanced nanofluidic membranes for high-efficiency osmotic energy conversion. This review summarizes recent progress in the fabrication of conductive polymer-based nanofluidic membranes, comprehensively compares the osmotic output performance of typical CP material systems, and discusses the core metrics of osmotic energy conversion output performance. By providing an overview of these developments, this review aims to offer insights into the future development of conductive polymer-based nanofluidic membranes for osmotic energy conversion.","PeriodicalId":18410,"journal":{"name":"Membranes","volume":"16 9","pages":""},"PeriodicalIF":4.2,"publicationDate":"2026-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13608889/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149039567","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Eco-Friendly Solvent-Based Fabrication of Single-Layer and Polydopamine-Modified Bilayer PVDF-HFP Membranes. 环保溶剂法制备单层及聚多巴胺修饰双层PVDF-HFP膜。

IF 4.2 4区工程技术

Membranes Pub Date : 2026-09-13 DOI: 10.3390/membranes16090300

Tridwip Sen, Eesh Kulshrestha, Muhammad Usman Yousaf, Minwoo Jung, Tequila A L Harris, Isabel C Escobar

{"title":"Eco-Friendly Solvent-Based Fabrication of Single-Layer and Polydopamine-Modified Bilayer PVDF-HFP Membranes.","authors":"Tridwip Sen, Eesh Kulshrestha, Muhammad Usman Yousaf, Minwoo Jung, Tequila A L Harris, Isabel C Escobar","doi":"10.3390/membranes16090300","DOIUrl":"10.3390/membranes16090300","url":null,"abstract":"Polymeric membrane systems have emerged as an effective approach for water separations due to their high separation efficiency, simplicity, and adaptability to a wide range of water treatment applications. However, traditional membrane fabrication processes often rely on toxic organic solvents, such as N-methyl-2-pyrrolidone (NMP) and dimethylacetamide (DMAc), which pose environmental and health risks. Eco-friendly solvents have been investigated as an alternative to traditional toxic solvents. This study investigates the fabrication and performance of polymeric membranes using eco-friendly solvent systems, with a focus on bilayer membranes designed to improve separation performance over traditional single-layer membranes. Membranes were fabricated using eco-friendly solvents, Rhodiasolv© PolarClean and gamma-valerolactone in combination with polymers polysulfone (PSf) and poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP). Membranes were fabricated using nonsolvent-induced phase separation (NIPS) through doctor blade extrusion (DBE) and slot-die coating (SDC) methods in order to compare traditional laboratory-scale casting methods (DBE) with scalable fabrication techniques (SDC). Bilayer membranes were investigated to address limitations presented by single-layer membranes, with polydopamine (PDA) incorporated as an adhesion-promoting additive. Membrane characterization included scanning electron microscopy (SEM), contact angle measurements, and tensile testing, along with water permeability and solute rejection tests. Results showed that polymer concentration and casting method influenced permeability and solute rejection, with the SDC bilayers reaching the highest initial BSA rejection. Filtration used deionized water and model aqueous feeds containing 100 ppm NaCl, 100 ppm CaCl2, and 100 ppm bovine serum albumin (BSA).","PeriodicalId":18410,"journal":{"name":"Membranes","volume":"16 9","pages":""},"PeriodicalIF":4.2,"publicationDate":"2026-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13609762/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149039556","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Full-Scale Multistage Pressure-Retarded Osmosis for Osmotic Energy Generation: Optimization of Specific and Net Energy Production. 渗透能生产的全尺寸多级缓压渗透：比能和净能生产的优化。

IF 4.2 4区工程技术

Membranes Pub Date : 2026-09-12 DOI: 10.3390/membranes16090299

Daniel Suárez-Alfonso, Alejandro Ruiz-García

{"title":"Full-Scale Multistage Pressure-Retarded Osmosis for Osmotic Energy Generation: Optimization of Specific and Net Energy Production.","authors":"Daniel Suárez-Alfonso, Alejandro Ruiz-García","doi":"10.3390/membranes16090299","DOIUrl":"10.3390/membranes16090299","url":null,"abstract":"Salinity gradient energy, also known as blue energy, is a clean and renewable option for electricity generation with no direct CO2 emissions. Among the available technologies, pressure-retarded osmosis (PRO) stands out, although its large-scale implementation is not yet economically viable, so predictive models are essential to assess its real potential. In the present work, a multistage PRO system of up to three stages, with one-three hollow-fiber membrane modules (HFMMs) arranged in series per stage, was simulated and the operating conditions were optimized. The model accounts for axial pressure drops, feed concentration and draw dilution along each module, considering two salinity gradients of 29.5 and 59.5 g L-1. The maximum net specific energy generation reached 421.48 Wh m-3 with three stages under the 59.5 g L-1 gradient. Adding HFMMs in series benefited the two-stage system but slightly penalized the three-stage one, and the net specific energy decreased monotonically as the ratio of pressure vessels between the first and the second stage increased. At least three stages are therefore required for a full-scale PRO system to become a net energy producer at moderate salinity gradients, and further energy should be sought through additional staging rather than through longer series.","PeriodicalId":18410,"journal":{"name":"Membranes","volume":"16 9","pages":""},"PeriodicalIF":4.2,"publicationDate":"2026-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13609321/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149039579","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Effects of Ca²⁺ on Membrane Potential with Altered Function of NALCN and K2P Channels. Ca2+对膜电位的影响及NALCN和K2P通道功能的改变。

IF 4.2 4区工程技术

Membranes Pub Date : 2026-09-11 DOI: 10.3390/membranes16090298

Youngwoo Kim, Jiwoo Kim, Robin L Cooper

{"title":"The Effects of Ca2+ on Membrane Potential with Altered Function of NALCN and K2P Channels.","authors":"Youngwoo Kim, Jiwoo Kim, Robin L Cooper","doi":"10.3390/membranes16090298","DOIUrl":"10.3390/membranes16090298","url":null,"abstract":"Cells exhibit a membrane potential due to the differential distribution of ions and the density of channels, pumps, and exchangers. It is known in larval Drosophila that the membrane potential gravitates towards the equilibrium potential of K+ due to the high density of K2P channels. Higher extracellular Ca2+ ([Ca2+]o) tends to drive the resting membrane potential to a more negative state, while lowering it has an opposite effect. The expression of the K2P channel and NALCN was altered genetically to determine the sensitivity to changes in [Ca2+]o, and computational simulations using the theoretical Goldman-Hodgkin-Katz equation allowed estimating changes in ion (Na+) permeability due to altered function of the NALCN. Increasing [Ca2+]o hyperpolarized the membrane potential, and decreasing [Ca2+]o depolarized it, likely because Ca2+ ions block NALCN. An accessory protein to NALCN and NALCN itself were targeted by RNAi. Overexpression of K2P channels and decreased NALCN function reduced the effect of altered [Ca2+]o on membrane potential. Given the limited understanding of how altered membrane potentials affect cells, this study provides a foundation for future investigations into how cells respond to variations in [Ca2+]o under altered K2P and NALCN expression.","PeriodicalId":18410,"journal":{"name":"Membranes","volume":"16 9","pages":""},"PeriodicalIF":4.2,"publicationDate":"2026-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13609646/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149039666","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

β-FeOOH-Loaded Polydopamine-Modified Halloysite Nanotubes as a Catalytic Interlayer for Enhanced Water Dissociation in Bipolar Membranes. 负载β- feoh -聚多巴胺修饰的高岭土纳米管作为双极膜中增强水解离的催化中间层。

IF 4.2 4区工程技术

Membranes Pub Date : 2026-09-10 DOI: 10.3390/membranes16090296

Haotian Wang, Rui Yang, Jie Wang, Kui Lou, Yunshuang Fan

{"title":"β-FeOOH-Loaded Polydopamine-Modified Halloysite Nanotubes as a Catalytic Interlayer for Enhanced Water Dissociation in Bipolar Membranes.","authors":"Haotian Wang, Rui Yang, Jie Wang, Kui Lou, Yunshuang Fan","doi":"10.3390/membranes16090296","DOIUrl":"10.3390/membranes16090296","url":null,"abstract":"Efficient interfacial water dissociation is essential for reducing the operating voltage of bipolar membranes (BPMs), whereas aggregation and nonuniform distribution of nanoscale catalysts can limit active-site utilization. In this study, polydopamine-modified halloysite nanotubes (PDA@HNTs) were used as a support for β-FeOOH loading to construct a composite catalytic interlayer for BPMs. XRD, FTIR, XPS, SEM, TEM, EDS mapping, contact-angle measurements, electrochemical tests, and bipolar membrane electrodialysis were used to evaluate the interlayer structure and membrane performance. At 50 mA cm-2, the β-FeOOH-PDA@HNTs-BPM exhibited a transmembrane voltage of 0.94 V, compared with 2.15 V for the blank BPM, while the interfacial water-dissociation resistance decreased from 3.873 to 0.980 Ω. After 48 h of continuous operation, the voltage increased only from 0.94 to 0.98 V. In electrodialysis, the membrane achieved a current efficiency of 81.4% and an energy consumption of 3.3 kWh kg-1 after 180 min. PDA-functionalized HNTs promote the dispersion and interfacial association of β-FeOOH, improve interfacial wettability and catalytic-site accessibility, and thereby enhance water dissociation and acid/base production in BPMs.","PeriodicalId":18410,"journal":{"name":"Membranes","volume":"16 9","pages":""},"PeriodicalIF":4.2,"publicationDate":"2026-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13609662/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149039741","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Structural Design of Ceramic Membranes to Mitigate Fouling in Membrane Bioreactors. 缓解膜生物反应器污染的陶瓷膜结构设计。

IF 4.2 4区工程技术

Membranes Pub Date : 2026-09-10 DOI: 10.3390/membranes16090297

Boyang Yu, Chao Fan, Tuo Sun

{"title":"Structural Design of Ceramic Membranes to Mitigate Fouling in Membrane Bioreactors.","authors":"Boyang Yu, Chao Fan, Tuo Sun","doi":"10.3390/membranes16090297","DOIUrl":"10.3390/membranes16090297","url":null,"abstract":"Despite the robust mechanical and chemical stability that make hollow flat-sheet ceramic membranes highly attractive for membrane bioreactors (MBRs), the fundamental relationship between their structural design, specifically pore size and structural symmetry, and biological fouling behavior remains elusive. To decouple the effects of membrane architecture on fouling mechanisms, a series of symmetric and asymmetric hollow flat-sheet alumina membranes were systematically engineered. Symmetric architectures with tunable pore sizes were fabricated by controlling aggregate particle sizes, whereas asymmetric counterparts featuring distinct separation layer thicknesses were developed via a tailored dip-coating process. Long-term operational evaluations treating municipal wastewater uncovered a counterintuitive phenomenon. Asymmetric membranes, despite yielding superior retention, experienced markedly accelerated transmembrane pressure evolution and severe cake layer fouling compared to the symmetric supports. Resistance-in-series analysis coupled with classical filtration models demonstrated that thicker separation layers and larger pore sizes were associated with shifts in the dominant fouling mechanism toward rapid and dense cake layer formation, which significantly exacerbated irreversible biological fouling. Furthermore, advanced spectroscopic and high-throughput sequencing techniques revealed that structurally complex asymmetric layers were associated with shifts in extracellular polymeric substances and specific fouling-associated bacterial phyla at the membrane interface. Ultimately, these findings underscore the necessity of architectural optimization to mitigate biofouling and prolong the operational lifespan of ceramic membranes, highlighting the sustainable advantages of symmetric structures.","PeriodicalId":18410,"journal":{"name":"Membranes","volume":"16 9","pages":""},"PeriodicalIF":4.2,"publicationDate":"2026-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13609629/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149039670","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Research on the Characteristics of Heat Transfer and Mass Transfer of Imitation Heart Pulse Membrane Distillation. 仿心脏脉冲膜蒸馏传热传质特性研究。

IF 4.2 4区工程技术

Membranes Pub Date : 2026-09-09 DOI: 10.3390/membranes16090295

Xiaoxuan Zhu, Zhoujun Lan, Zhuang Song, Peng Wang, Derong Duan, Zhongyi Jiang

{"title":"Research on the Characteristics of Heat Transfer and Mass Transfer of Imitation Heart Pulse Membrane Distillation.","authors":"Xiaoxuan Zhu, Zhoujun Lan, Zhuang Song, Peng Wang, Derong Duan, Zhongyi Jiang","doi":"10.3390/membranes16090295","DOIUrl":"10.3390/membranes16090295","url":null,"abstract":"Membrane distillation, a separation technology, has drawn wide attention in industries such as seawater desalination and high-salinity wastewater treatment. However, conventional steady-flow operation suffers from flux decline and membrane fouling, while standard square-wave and sine-wave pulsations provide limited enhancement and stability. To address these issues, this study introduces heartbeat-mimicking pulsatile flow. Its effects on membrane distillation performance were evaluated through comparative (steady vs. pulsatile) experiments, a three-level orthogonal experiment, and tests with various feed solutions and modified membranes. Results show that, under baseline conditions, the heartbeat-mimicking pulsatile flow yielded a 17.5% higher average flux than steady flow, while its conductivity increase was only 25%, far below the 93% for steady flow. In the orthogonal experiment, the heartbeat-mimicking waveform accounted for the largest proportion of total variance (50.1%) among the tested parameters. Furthermore, compared to traditional sine or square waves, this biomimetic pulsation features unique acceleration-rest characteristics, making it highly applicable to complex feed solutions and effectively mitigating membrane fouling. This study aims to identify a new pulsation mode that can overcome the limitations of steady-flow membrane distillation.","PeriodicalId":18410,"journal":{"name":"Membranes","volume":"16 9","pages":""},"PeriodicalIF":4.2,"publicationDate":"2026-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13609319/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149039632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Robust Yet Conductive Blend Anion Exchange Membranes for Hydrogen Production via PPO Reinforcement of Highly Functionalized Styrene-Butadiene-Based Ionomers. 通过高功能化苯乙烯-丁二烯基离聚体PPO增强制氢的坚固而导电的共混阴离子交换膜。

IF 4.2 4区工程技术

Membranes Pub Date : 2026-09-02 DOI: 10.3390/membranes16090294

Andrea Roggi, Marco Turriani, Margherita Di Pede, Gabriele Agonigi, Antonio Filpi, Claudio Resta, Elisa Guazzelli, Elisa Martinelli

{"title":"Robust Yet Conductive Blend Anion Exchange Membranes for Hydrogen Production via PPO Reinforcement of Highly Functionalized Styrene-Butadiene-Based Ionomers.","authors":"Andrea Roggi, Marco Turriani, Margherita Di Pede, Gabriele Agonigi, Antonio Filpi, Claudio Resta, Elisa Guazzelli, Elisa Martinelli","doi":"10.3390/membranes16090294","DOIUrl":"10.3390/membranes16090294","url":null,"abstract":"Herein, vinylbenzyl chloride (VBC)-grafted styrene-butadiene (SB) copolymers, with high contents of VBC (22-32 mol%), were synthesized and blended with low amounts (n = 3-10 wt%) of unfunctionalized poly(phenylene oxide) (PPO). Being well-known for its great chemical compatibility with polystyrene, PPO was selected as non-conductive, hydrophobic and mechanically robust component to be blended with graft copolymers in order to reduce their water uptake, thus improving their dimensional and mechanical stability after quaternization with trimethylamine. The resulting blend membranes were characterized in terms of thermal, mechanical, and ex situ electrochemical properties. Blend membranes generally presented improved mechanical properties, as well as reduced water uptake with respect to AEMs not containing PPO, while retaining ion conductivity values of 11.3-16.6 mS cm-1, higher than that of a commercial hydrocarbon-based benchmark. Among the investigated blend AEMs, g-VBC-32/PPOn membranes were found to have the highest conductivity values (>15 mS cm-1) and the best trade-off between water uptake, mechanical properties and hydrogen permeability. Overall, these results highlight pristine PPO blending as a cost-effective, simple and scalable route to improve the mechanical and dimensional stability of hydrocarbon-based AEMs.","PeriodicalId":18410,"journal":{"name":"Membranes","volume":"16 9","pages":""},"PeriodicalIF":4.2,"publicationDate":"2026-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13609407/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149039635","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Shifting the Redox-Flow Battery Trade-Off with Amine-Crosslinked PVBC Thin-Film Composite Membranes. 用胺交联PVBC薄膜复合膜改变氧化还原液流电池的权衡。

IF 4.2 4区工程技术

Membranes Pub Date : 2026-08-31 DOI: 10.3390/membranes16090291

Chiari Van Cauter, Maarten Cools, Yun Li, Ivo F J Vankelecom

{"title":"Shifting the Redox-Flow Battery Trade-Off with Amine-Crosslinked PVBC Thin-Film Composite Membranes.","authors":"Chiari Van Cauter, Maarten Cools, Yun Li, Ivo F J Vankelecom","doi":"10.3390/membranes16090291","DOIUrl":"10.3390/membranes16090291","url":null,"abstract":"Redox flow batteries (RFBs) are an interesting option for long-term energy storage. A well-performing membrane sits at the heart of the electrochemical battery cell and should effectively mitigate crossover of active species while minimizing resistance. However, current commercial membranes are rather expensive and demonstrate sub-optimal performance, leading to an extensive search for alternatives. Research on membranes for RFBs has long been dominated by dense ion-exchange membranes and porous membranes, both potentially with fillers. In recent years, increased interest in alternative morphologies such as thin-film composites (TFCs) has ignited new research directions. TFCs consist of a thin dense layer on top of a porous support, aiming to merge the advantages of both. Traditionally, TFCs are made using polyamide top layers. In this paper, a novel chemistry is developed with increased chemical stability for RFBs. Poly(vinylbenzyl chloride) is crosslinked interfacially with a diamine, demonstrating for the first time the potential of support-mediated interfacial crosslinking with two immiscible solvents. Optimization of the support, amine crosslinker, reaction time and synthesis procedure allowed a shift of the trade-off between vanadium crossover and proton transport, highlighting the opportunities for this promising TFC chemistry.","PeriodicalId":18410,"journal":{"name":"Membranes","volume":"16 9","pages":""},"PeriodicalIF":4.2,"publicationDate":"2026-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13609740/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149039614","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of PVA/TiO₂ Composite Hydrogel-Modified PES Ultrafiltration Membranes on Antibiotic Removal Performance and Membrane Fouling Behavior. PVA/TiO2复合水凝胶改性PES超滤膜对抗生素去除性能和膜污染行为的影响

IF 4.2 4区工程技术

Membranes Pub Date : 2026-08-31 DOI: 10.3390/membranes16090293

Mingyang Li, Bingyang Wang, Jianqiang Zhao, Lianghao Lv, Zhizhang Xu, Zhaoqian Xie, Xiaobo Wu, He Zhang, Guoliang Bai, Dingkun Lu

{"title":"Effects of PVA/TiO2 Composite Hydrogel-Modified PES Ultrafiltration Membranes on Antibiotic Removal Performance and Membrane Fouling Behavior.","authors":"Mingyang Li, Bingyang Wang, Jianqiang Zhao, Lianghao Lv, Zhizhang Xu, Zhaoqian Xie, Xiaobo Wu, He Zhang, Guoliang Bai, Dingkun Lu","doi":"10.3390/membranes16090293","DOIUrl":"10.3390/membranes16090293","url":null,"abstract":"To improve the hydrophilicity and antibiotic retention of conventional polyethersulfone (PES) ultrafiltration membranes, a PVA/TiO2 composite hydrogel-modified PES membrane was prepared by hydrogel coating and in situ TiO2 embedding. Its removal of common antibiotics and antibiotic resistance genes (ARGs), as well as fouling behavior, was evaluated under different environmental conditions. The modified membrane formed an approximately 5 μm gel layer, showed reduced surface roughness, and increased pure-water flux by about 5.0%. It removed four antibiotics more effectively than the pristine membrane, with the greatest improvement for ofloxacin. Environmental conditions strongly affected antibiotic removal but had limited effects on ARG reduction. Low pH favored sulfamethoxazole, tetracycline, and ofloxacin removal, while 5 μm particles increased sulfamethoxazole and tetracycline removal by 27.0% and 22.0%, respectively. Hermia model fitting suggested predominantly standard blocking-type hydraulic behavior under the tested pH conditions and complete blocking-type behavior in the presence of HA or particles. These results show that PVA/TiO2 modification improves PES membrane hydrophilicity and antibiotic removal, although fouling under complex conditions remains important.","PeriodicalId":18410,"journal":{"name":"Membranes","volume":"16 9","pages":""},"PeriodicalIF":4.2,"publicationDate":"2026-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13608905/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149039605","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0