文献类型：期刊文献

英文题名：Mechanistic insights into permeability and antifouling enhancement in polyethersulfone/mica hybrid membranes

作者：Mu, Liuhua[1];Zhou, Binjie[2];Huang, Yingying[2];Gao, Shiyu[2];Sheng, Shiqi[2]

机构：[1]Ningbo Univ, Sch Phys Sci & Technol, Ningbo 315211, Peoples R China;[2]East China Univ Sci & Technol, Sch Phys, Shanghai 200237, Peoples R China

年份：2026

卷号：14

期号：2

外文期刊名：JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING

收录：;EI(收录号：20260620036795);WOS:【SCI-EXPANDED(收录号:WOS:001688223100001)】；

基金：This work was supported by the National Natural Science Foundation of China (12005062, 12004109, and 12405036) and the Postdoctoral Fellowship Program of CPSF under Grant Number GZC20232610.

语种：英文

外文关键词：Permeability; Antifouling performance; Hybrid ultrafiltration membrane; Theoretical calculation; Mechanistic insight; Mica micro/nano-particle

摘要：Improving the antifouling ability and permeability of polymeric membranes in an economical and easily implementable manner remains a great challenge, and the underlying mechanisms governing permeability evolution in nanocomposite membranes remain not fully understood. In this study, we developed a spray-sediment method to selectively incorporate micro/nano-sized mica particles onto the top surface of polyethersulfone (PES) ultrafiltration membrane fabricated through non-solvent induced phase separation. The partially embedded mica particles facilitated a mechanistic investigation and also achieved a synergistic improvement in both antifouling abilities and permeability. With an ultralow mica loading of 0.48 wt%, the pure water flux and bovine serum albumin (BSA) flux increased by 41.1 % and 28.8 %, respectively, while maintaining a high BSA rejection rate of 91.6 %. Correspondingly, the water flux recovery rate reached 87.1 %, representing a 20.7 % improvement over the pristine PES membrane. Experimental nanopore analysis demonstrated that permeability evolution is governed by competing effects: (1) enhanced surface porosity at the particle-matrix interfacial regions, and (2) suppressed nanopore formation atop the particles within the membrane's shallower layer. Molecular dynamics (MD) simulations further elucidated that the particle-matrix bound layer extends skin-layer porosity while effectively mitigating irreversible organic foulant adsorption. Together, these findings provide fundamental mechanistic insights into membrane performance optimization, establish a clear structure-property relationship for hybrid membranes, and highlight a scalable, cost-effective approach for fabricating high-performance antifouling membranes.