Journal of Membrane Science最新文献

Dynamic computation of multicomponent water and nutrients transport in forward osmosis system 正向渗透系统中多组分水分和养分运移的动态计算

IF 8.4 1区工程技术

Journal of Membrane Science Pub Date : 2025-07-14 DOI: 10.1016/j.memsci.2025.124444

Aaron Zhen Yao Koe , Wei Jiun Lim , Chian Yong Loh , Boon Seng Ooi

{"title":"Dynamic computation of multicomponent water and nutrients transport in forward osmosis system","authors":"Aaron Zhen Yao Koe , Wei Jiun Lim , Chian Yong Loh , Boon Seng Ooi","doi":"10.1016/j.memsci.2025.124444","DOIUrl":"10.1016/j.memsci.2025.124444","url":null,"abstract":"<div><div>As aquaculture production garners more interest around the globe, the production of aquaculture effluent will continue to rise. With the presence of dilute nutrients (NH<sub>4</sub><sup>+</sup> and H<sub>2</sub>PO<sub>4</sub><sup>−</sup>) in the effluent, the recovery of said nutrients requires a dewatering process. Forward osmosis (FO) systems are good dewatering processes as they have low fouling tendencies and better reuse efficiency. With that, a method for performance simulation is required for multicomponent FO systems. Multicomponent Fickian solution-diffusion model provides a simple computation method for FO systems containing more than three ions. Preliminary experimental studies concluded that NH<sub>4</sub><sup>+</sup> transport across FO membrane relies on self-diffusion and induced diffusion caused by draw solute (Mg<sup>2+</sup>). For H<sub>2</sub>PO<sub>4</sub><sup>−</sup> ions, the transport was mainly contributed by convection as the diffusion of H<sub>2</sub>PO<sub>4</sub><sup>−</sup> across FO membrane showed positive relation with increasing water flux. Experimental validation of estimated parameters was also performed by two separate experiments. FO system performance such as water flux, reverse salt flux, nutrient rejection, and final nutrient concentration was computed and compared with experimental data. The comparison showed that the values computed were generally within 6 % of deviation with some outliers at 9 % of deviation. Dynamic computation showed the flexibility of estimated parameters as it can also predict FO system performance that operates at longer operation period and a at a higher initial volume of feed and draw solution.</div></div>","PeriodicalId":368,"journal":{"name":"Journal of Membrane Science","volume":"734 ","pages":"Article 124444"},"PeriodicalIF":8.4,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144634427","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

Triazine-Tröger's Base framework membranes enabling ultra-fast H+ selectivity for acid recovery processes Triazine-Tröger的碱性框架膜，使超快的H+选择性酸回收过程

IF 8.4 1区工程技术

Journal of Membrane Science Pub Date : 2025-07-11 DOI: 10.1016/j.memsci.2025.124435

Jiu Yang , Wentao Jin , Jingjing Gu, Ruonan Tan, Ziqiang Hong, Suixin Zhang, Zheng Ji, Xingyun Li, Zongliang Wan, Rui Jia, Cen-Feng Fu, Jin Ran

{"title":"Triazine-Tröger's Base framework membranes enabling ultra-fast H+ selectivity for acid recovery processes","authors":"Jiu Yang , Wentao Jin , Jingjing Gu, Ruonan Tan, Ziqiang Hong, Suixin Zhang, Zheng Ji, Xingyun Li, Zongliang Wan, Rui Jia, Cen-Feng Fu, Jin Ran","doi":"10.1016/j.memsci.2025.124435","DOIUrl":"10.1016/j.memsci.2025.124435","url":null,"abstract":"<div><div>Designing Ion-selective membranes (ISMs) with ultrafast H<sup>+</sup> selectivity is highly challenging for efficiently recovering high-purity acids under harsh conditions. This challenge arises primarily because the channels of existing ISMs suitable for acid recovery tend to swell under high charged densities, resulting in reduced selectivity, despite high charge density being critical for achieving high acid flux. To address this, we developed a robust acid-recovery membrane based on a fully rigid skeletal framework of charged Tröger's Base (TB) polymer bearing triazine moieties. This TB polymer framework provides abundant rigid micropores, enabling efficient H<sup>+</sup> recovery from mixed metal ion systems through confinement-dimensional sieving effects. Incorporation of triazine rings further regulates the chemical environment of the rigid channels, facilitating ultrafast proton transport. The resulting TB framework membrane exhibits exceptional acid-recovery performance, achieving an H<sup>+</sup> dialysis coefficient of 22.80 × 10<sup>−3</sup> m h<sup>−1</sup> and a selectivity of 7238, surpassing the commercial membrane DF-120 by 2.7-fold and 391.2-fold, respectively. The membrane also demonstrates outstanding durability under high-concentration acid (10 mol L<sup>−1</sup>) and high-temperature (70 °C) conditions, making it highly suitable for practical applications. The membrane design strategy presented here may be further extended to develop advanced membrane materials for applications in electrochemical devices requiring precise ion selectivity.</div></div>","PeriodicalId":368,"journal":{"name":"Journal of Membrane Science","volume":"734 ","pages":"Article 124435"},"PeriodicalIF":8.4,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144632411","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

Contrivance of covalent organic framework membranes enabled by mixed dimensional self-assembly strategy for molecular separation 基于混合维自组装策略的分子分离共价有机框架膜的设计

IF 8.4 1区工程技术

Journal of Membrane Science Pub Date : 2025-07-11 DOI: 10.1016/j.memsci.2025.124439

Wenhui Hu , Zhipeng Yan , Jianyang Jia , Qiangqiang Song , Taoning Fan , Qin Shen , Kecheng Guan , Xueling Wang , Yuqing Lin , Jing Wang , Hideto Matsuyama , Yatao Zhang

{"title":"Contrivance of covalent organic framework membranes enabled by mixed dimensional self-assembly strategy for molecular separation","authors":"Wenhui Hu , Zhipeng Yan , Jianyang Jia , Qiangqiang Song , Taoning Fan , Qin Shen , Kecheng Guan , Xueling Wang , Yuqing Lin , Jing Wang , Hideto Matsuyama , Yatao Zhang","doi":"10.1016/j.memsci.2025.124439","DOIUrl":"10.1016/j.memsci.2025.124439","url":null,"abstract":"<div><div>Covalent organic frameworks (COFs) with tunable porous network structures afford unheard-of opportunities for high-efficient solvents-resistant molecular separation. Presently, the practicability of COFs membranes is critically constricted by its inflexible essence, weak interlaminar interaction and wider pore size, enabling the arduous preparation of defect-free membranes. In this work, a series of composite nanofiltration membranes were formed via a mixed dimensional assembly of COF-TAPT-BTA nanosheets and silk nanofibrils (SNF). The SNF with large aspect ratio and well-supplied functional groups effectively reduced the pore entrance of COF-TAPT-BTA (shielding effects) and intensified membrane's integrity. The interweaving and interlocked nanopore render the resultant COF@SNF-X membranes with precise molecular sieving abilities besides the augmented stability arose from the multiple interaction. Accordingly, the optimized COF@SNF-X membrane manifested an ultrahigh methanol permeance of 1365.5 L m<sup>−2</sup> h<sup>−1</sup> bar<sup>−1</sup> with a high rejection of 96.0 % for DR 23.</div></div>","PeriodicalId":368,"journal":{"name":"Journal of Membrane Science","volume":"734 ","pages":"Article 124439"},"PeriodicalIF":8.4,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144632543","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

Doped-Mn electrospun nanofiber membrane with targeted ozone activation: High-efficiency complete pollutant removal via photocatalytic ozonation during oil-water separation 定向臭氧活化掺杂锰静电纺纳米纤维膜：油水分离过程中光催化臭氧氧化高效完全去除污染物

IF 8.4 1区工程技术

Journal of Membrane Science Pub Date : 2025-07-11 DOI: 10.1016/j.memsci.2025.124413

Benjie Zhu , Yuhan Liu , Fei Gao , Yaru Dong , Yixuan Song , Zhongfei Ren , Fang Liu , Ming Wang

{"title":"Doped-Mn electrospun nanofiber membrane with targeted ozone activation: High-efficiency complete pollutant removal via photocatalytic ozonation during oil-water separation","authors":"Benjie Zhu , Yuhan Liu , Fei Gao , Yaru Dong , Yixuan Song , Zhongfei Ren , Fang Liu , Ming Wang","doi":"10.1016/j.memsci.2025.124413","DOIUrl":"10.1016/j.memsci.2025.124413","url":null,"abstract":"<div><div>Membrane processes are confronting the escalating challenge of simultaneously addressing refractory pollutant removal and membrane fouling in the advanced treatment and reuse of petrochemical wastewater. This study introduces Mn-doped carbon nitride nanotubes (CNT<sub>Mn</sub>) into polyacrylonitrile (PAN) nanofiber membrane (M<sub>PAN</sub>-CNT<sub>Mn</sub>), endowing them with dual functions of efficient oil-water separation and photocatalytic ozonation (COP) self-cleaning activity. M<sub>PAN</sub>-CNT<sub>Mn</sub> achieves >98 % separation efficiency for dodecane, hexadecane, and n-hexane emulsions. Under COP conditions, M<sub>PAN</sub>-CNT<sub>Mn</sub> can degrade 95.2 % tetracycline (TC) and 84.4 % <em>p</em>-nitrophenol (PNP) within 60 min. Notably, the M<sub>PAN</sub>-CNT<sub>Mn</sub> nanofiber membrane exhibits excellent resistance to water quality interference, with secondary treatment flux recovery rates for dodecane-TC, dodecane-PNP mixtures, and crude oil emulsions increased by 22.7 %, 24.9 %, and 19.4 % compared to PAN nanofiber membrane (M<sub>PAN</sub>). The hydrophilic nano-interface of M<sub>PAN</sub>-CNT<sub>Mn</sub> nanofiber membrane facilitates efficient mass transfer between pollutants and reactive species. And doped-Mn enhances the directional conversion of free O<sub>3</sub> into ∗O and O<sub>3</sub><sup>•-</sup>, which achieve pollutant degradation through a synergistic pathway of \"∗O non-radical surface activation & O<sub>3</sub><sup>•-</sup> radical liquid-phase reaction chain transfer\". Overall, the proposed COP self-cleaning oil-water separation nanofiber membrane system offers a novel approach for the synergistic resolution of membrane fouling control and pollutant removal in oily wastewater treatment.</div></div>","PeriodicalId":368,"journal":{"name":"Journal of Membrane Science","volume":"734 ","pages":"Article 124413"},"PeriodicalIF":8.4,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144634436","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

Nesting doll-inspired double-layered nanofiltration membranes for highly efficient PFAS removal and natural water purification 嵌套娃娃启发双层纳滤膜，高效去除PFAS和自然水净化

IF 8.4 1区工程技术

Journal of Membrane Science Pub Date : 2025-07-11 DOI: 10.1016/j.memsci.2025.124436

Feiyue Ge , Xuewu Zhu , Fanduo Meng , Xinwei Kang , Liping Qiu , Bin Liu , Xiaozhen Lu , Daoji Wu , Zhe Yang , Daliang Xu

{"title":"Nesting doll-inspired double-layered nanofiltration membranes for highly efficient PFAS removal and natural water purification","authors":"Feiyue Ge , Xuewu Zhu , Fanduo Meng , Xinwei Kang , Liping Qiu , Bin Liu , Xiaozhen Lu , Daoji Wu , Zhe Yang , Daliang Xu","doi":"10.1016/j.memsci.2025.124436","DOIUrl":"10.1016/j.memsci.2025.124436","url":null,"abstract":"<div><div>Tailoring the surface pleat morphology of polyamide nanofiltration (NF) membranes allows for targeted modulation of their performance, thereby optimizing membrane functionality for diverse application scenarios. This approach has emerged as a critical research direction in membrane technology, particularly industrial applications. In this study, the precise modulation of the polymerization rate, molecular diffusion behavior, and interfacial reaction kinetics was achieved by adding LiCl. By leveraging the synergistic effects of Li<sup>+</sup> coordination with carbonyl groups and the interfacial thermal phenomena, a nesting-doll structure featuring multiple filtration interfaces was successfully engineered. This significantly enhances the separation efficiency of NF membranes. Consequently, the prepared NF membranes exhibit notable advantages in natural surface water treatment. Specifically, the uniquely designed nesting-doll membrane (PIP–Li@3) achieved 89.5 % and 95.9 % removal rates for dissolved organic carbon and fluorescent organics, respectively. The PIP-Li@3 demonstrated exceptional efficacy in treating complex and difficult-to-remove per- and polyfluoroalkyl substances. Compared to NF270, the PIP-Li@3 exhibits superior removal performance for PFAS of varying molecular weights, achieving a rejection rate of 98.4 % for perfluorooctanoic acid. This work presents a green and efficient method for removing PFAS from surface water by preparing NF membranes with a unique nesting-doll morphology by regulating the two-stage IP reaction rate.</div></div>","PeriodicalId":368,"journal":{"name":"Journal of Membrane Science","volume":"734 ","pages":"Article 124436"},"PeriodicalIF":8.4,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144613861","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

Alkali-mediated synthesis of uncharged colloidal β-ketoenamine-linked COFs for membrane construction 碱介导合成无电荷胶体β-酮胺联COFs用于膜构建

IF 8.4 1区工程技术

Journal of Membrane Science Pub Date : 2025-07-10 DOI: 10.1016/j.memsci.2025.124429

Zhihong Dong , Ying Zhu , Xuexi Zhang , Xinliang Zhang , Xueting Zhao , Jiefeng Pan

{"title":"Alkali-mediated synthesis of uncharged colloidal β-ketoenamine-linked COFs for membrane construction","authors":"Zhihong Dong , Ying Zhu , Xuexi Zhang , Xinliang Zhang , Xueting Zhao , Jiefeng Pan","doi":"10.1016/j.memsci.2025.124429","DOIUrl":"10.1016/j.memsci.2025.124429","url":null,"abstract":"<div><div>Covalent organic frameworks (COFs) are ideal materials for engineering molecular sieves membranes. Colloidal COFs play an important role in the preparation of defect-free COF membranes. Herein, we present the alkali-mediated approach to synthesize uncharged <em>β</em>-ketoenamine-linked COFs with high colloidal dispersibility that can serve as preferred membrane-forming materials. The colloidal <em>β</em>-ketoenamine-linked COFs are synthesized in the single solution-phase system and alkali is employed to regulate the reversible dynamic amine-aldehyde condensation process by directing the weak hydrogen bond networks. The colloidal COFs obtained from alkali-mediated synthesis exhibit promoted crystallinity and outstanding dispersity for membrane construction. Furthermore, the alkali-mediated synthesis approach is universal and suitable for synthesizing a series of colloidal <em>β</em>-ketoenamine-linked COFs without the limitations of charged monomers or frameworks. The colloidal COFs are further assembled into COF membranes by vacuum-assisted assembly. Thanks to the intrinsic regular pore structure of COFs, the COF membranes exhibit high permeability (58 L m<sup>−2</sup> h<sup>−1</sup>·bar<sup>−1</sup>) and can achieve accurate screening of dye molecules. This work provides a facile and scalable synthesis strategy for uncharged colloidal COFs, and can be employed to develop COF membranes for on-demand molecule separation.</div></div>","PeriodicalId":368,"journal":{"name":"Journal of Membrane Science","volume":"734 ","pages":"Article 124429"},"PeriodicalIF":8.4,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144597396","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

Precise separation of flavor constituents from tobacco extracts via tailored nanofiltration membranes 通过定制的纳滤膜精确分离烟草提取物中的风味成分

IF 8.4 1区工程技术

Journal of Membrane Science Pub Date : 2025-07-10 DOI: 10.1016/j.memsci.2025.124432

Chunbo Liu , Hao Zhang , Ruisong Xu , Mengjie Hou , Wei Jiang , Shiyun Tang , Xiaoxi Si , Fengmei Zhang , Jun Tang , Shouhai Zhang , Tonghua Wang , Lin Li

{"title":"Precise separation of flavor constituents from tobacco extracts via tailored nanofiltration membranes","authors":"Chunbo Liu , Hao Zhang , Ruisong Xu , Mengjie Hou , Wei Jiang , Shiyun Tang , Xiaoxi Si , Fengmei Zhang , Jun Tang , Shouhai Zhang , Tonghua Wang , Lin Li","doi":"10.1016/j.memsci.2025.124432","DOIUrl":"10.1016/j.memsci.2025.124432","url":null,"abstract":"<div><div>Tobacco extract derived from tobacco leaves contains a broad range of bioactive compounds with significant industrial value, yet their structural diversity and overlapping molecular weights pose challenges for selective separation. In this work, a four-stage membrane cascade system, integrating ultrafiltration with three custom-designed nanofiltration (NF) membranes featuring precisely tuned molecular weight cut-offs (MWCOs), was developed to separate the targeted compounds from authentic tobacco extract. Results demonstrated that nicotine was gradually enriched with up to 97 % rejection, while flavor compounds ranging from 90 to 400 Da were selectively retained based on molecular sieving in the four-step membrane cascade system. Following filtration with a ∼342 Da MWCO membrane, the flavor compounds Rishitin (336 Da) and Butyl octyl phthalate (334 Da) were completely retained; subsequent filtration with a ∼180 Da MWCO membrane enabled 100 % retention of β-Violetol (194 Da) and Megastigmatrienone (190 Da); and flavor compounds with 90∼160 Da molecular weights were effectively retained using a ∼92 Da MWCO membrane at final stage. In contrast, low-molecular-weight (<90 Da) compounds exhibited lower retention due to their small size and weak membrane interactions. This membrane-based approach enables efficient and scalable purification of tobacco extract, offering new opportunities for clean processing and high-value utilization in the tobacco industry.</div></div>","PeriodicalId":368,"journal":{"name":"Journal of Membrane Science","volume":"734 ","pages":"Article 124432"},"PeriodicalIF":8.4,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144613860","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

Novel poly(ester amide) nanofiltration membranes fabricated utilizing 4-hydroxypiperidine as a co-reactive monomer for monovalent/divalent anionic salt separation 以4-羟基哌替啶为共反应单体制备一价/二价阴离子盐分离的新型聚（酯酰胺）纳滤膜

IF 8.4 1区工程技术

Journal of Membrane Science Pub Date : 2025-07-10 DOI: 10.1016/j.memsci.2025.124430

Fangzheng Yan , Zhi Wang , Ming Wang

{"title":"Novel poly(ester amide) nanofiltration membranes fabricated utilizing 4-hydroxypiperidine as a co-reactive monomer for monovalent/divalent anionic salt separation","authors":"Fangzheng Yan , Zhi Wang , Ming Wang","doi":"10.1016/j.memsci.2025.124430","DOIUrl":"10.1016/j.memsci.2025.124430","url":null,"abstract":"<div><div>The thin-film composite (TFC) nanofiltration (NF) membranes are extremely promising in the field of monovalent/divalent anionic salt separation. The selection of monomers with different reactive groups could enable the TFC NF membranes to be more suitable for monovalent/divalent anionic salt separation. In this study, a novel low-cost compound 4-hydroxypiperidine (HDP) was first utilized with piperazine (PIP) as an aqueous phase co-reactive monomer to fabricate poly (ester amide) (PEA) TFC NF membranes via interfacial polymerization. The addition of HDP made the PEA layer thinner, smoother, and more hydrophilic while also creating larger pores and increasing the surface negative charge density. The water permeance of the optimal membrane NF–1P1H (with a PIP: HDP ratio of 1:1) was 13.67 L·m<sup>−2</sup>·h<sup>−1</sup>·bar<sup>−1</sup>, which was 70.24 % higher than that of NF–P (with a PIP: HDP ratio of 1:0). The NaCl/Na<sub>2</sub>SO<sub>4</sub> separation factor of NF–1P1H was 43.00, which was 73.39 % higher than that of NF–P. NF–1P1H also had excellent selectivity in the mixed salt solution. In addition, NF–1P1H demonstrated superior operational stability, anti-fouling performance, chlorine resistance, and sufficient pH stability after short-term acid-base immersion. Moreover, the water permeance of NF–1P2H (with a PIP: HDP ratio of 1:2) could reach 15.08L·m<sup>−2</sup>·h<sup>−1</sup>·bar<sup>−1</sup>, which was 87.80 % higher than that of NF–P, and its separation factor was maintained at 27.12. This study presents a straightforward and efficient method for fabricating PEA TFC NF membranes with desirable water permeance and monovalent/divalent anionic salt separation performance.</div></div>","PeriodicalId":368,"journal":{"name":"Journal of Membrane Science","volume":"734 ","pages":"Article 124430"},"PeriodicalIF":8.4,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144623530","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

Investigating organic fouling of ultrafiltration membranes using RP-HPLC fractionated SMP from an AnMBR and advanced QCM-D and LSPR analysis 利用反相高效液相色谱法分离AnMBR中SMP及先进的QCM-D和LSPR分析研究超滤膜的有机污染

IF 8.4 1区工程技术

Journal of Membrane Science Pub Date : 2025-07-10 DOI: 10.1016/j.memsci.2025.124412

Idit Waldman , Noa Stein , Roy Bernstein, Moshe Herzberg

{"title":"Investigating organic fouling of ultrafiltration membranes using RP-HPLC fractionated SMP from an AnMBR and advanced QCM-D and LSPR analysis","authors":"Idit Waldman , Noa Stein , Roy Bernstein, Moshe Herzberg","doi":"10.1016/j.memsci.2025.124412","DOIUrl":"10.1016/j.memsci.2025.124412","url":null,"abstract":"<div><div>Anaerobic membrane bioreactors (AnMBRs) have emerged as an appealing technology for wastewater treatment. However, organic fouling, particularly by soluble microbial products (SMP), presents a major challenge to their operation. The characteristics of the organic fractions comprising SMP affect the degree and reversibility of membrane fouling. However, fractionating SMP to identify the components most responsible for fouling remains difficult. Advanced methods are required to investigate the interactions between organic matter and membranes. This study presents a robust method for fractionating SMP using reverse-phase high-performance liquid chromatography with a semi-preparative C4 reverse-phase column and a highly sensitive approach for investigating interactions between the membrane and organic matter using localized surface plasmon resonance (LSPR) analysis. Following optimization of the proposed method, the effect of each organic fraction on membrane fouling was investigated through ultrafiltration tests and by quartz crystal microbalance with dissipation monitoring (QCM-D) and LSPR analysis. The SMP was separated into five fractions that differed mainly in hydrophilicity and thus each affected fouling differently. However, the original SMP mixture collected from an AnMBR caused the most severe fouling and exhibited the highest accumulation on the QCM-D and LSPR membrane-mimetic sensors. This result is attributed to synergistic fouling and adsorption effects. The LSPR dry mass adsorption correlated most strongly with the ultrafiltration membrane fouling results. Combining LSPR analysis, which measures dry mass accumulation, with QCM-D, which measures hydration and viscoelasticity, enables the comprehensive assessment of fouling potential and fouling evolution over time.</div></div>","PeriodicalId":368,"journal":{"name":"Journal of Membrane Science","volume":"734 ","pages":"Article 124412"},"PeriodicalIF":8.4,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144605337","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

Alkaline earth metal-doped La2Ce2O7 mixed-conductors: optimization of hydrogen permeation and environmental stability 碱土金属掺杂La2Ce2O7混合导体：氢渗透和环境稳定性的优化

IF 8.4 1区工程技术

Journal of Membrane Science Pub Date : 2025-07-09 DOI: 10.1016/j.memsci.2025.124420

Chunli Yang, Jun Li, Wei Yao, Lei Wang, Yanru Liang, Kai Wang

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