文献类型：期刊文献

英文题名：Synergistic design of a robust superhydrophobic ZIF 8/PDMS/PI composite membrane for integrated oil water separation, photocatalysis, and anti biofouling

作者：Miao, Ying[1];Hong, Zhen[1];Yin, Zuozhu[1];Luo, Yidan[1];Xie, Chan[1];Xue, Mingshan[2]

机构：[1]Nanchang Hangkong Univ, Sch Mat Sci & Engn, Nanchang 330063, Peoples R China;[2]Guangdong Ocean Univ, Sch Mat Sci & Engn, Yangjiang 529500, Peoples R China

年份：2026

卷号：748

外文期刊名：COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS

收录：SCI-EXPANDED(收录号：WOS:001800511500001)、、Scopus(收录号：2-s2.0-105041645176)、WOS

基金：This work was funded by the National Natural Science Foundation of China (62304096 and 12264030) , Jiangxi Provincial Natural Science Foundation (20242BAB25227) .

语种：英文

外文关键词：Oil-water separation; Photocatalysis; Anti-biofouling; Polyimide; Superhydrophobicity

外文摘要：The treatment of wastewater containing oils and organic pollutants remains a critical environmental challenge. Traditional separation membranes often lack the multifunctionality needed for simultaneous separation, degradation, and antifouling. In this study, a robust superhydrophobic composite membrane was fabricated via a facile solution-impregnation method, in which zeolitic imidazolate framework-8 (ZIF-8) nanoparticles were integrated with polydimethylsiloxane (PDMS) onto a porous polyimide (PI) substrate. The designed coating synergistically combines the micro-/nano-scale roughness of ZIF-8 with the low surface energy of PDMS, endowing the membrane with a water contact angle of 162.8 +/- 0.3 degrees and a sliding angle of 3.0 +/- 0.4 degrees. The composite membrane demonstrates high-efficiency separation of various oil-water mixtures (>95% efficiency, flux >9000 L & centerdot;m(-2)& centerdot;h(-1)), effective photocatalytic degradation of methylene blue (MB) under ultraviolet (UV) light (93.7% within 2.5 h), and excellent anti-bioadhesion performance against Chlorella vulgaris. Moreover, the membrane retains its superhydrophobicity after mechanical abrasion, tape peeling, UV aging, and exposure to acidic/alkaline environments, confirming outstanding durability. This work presents a scalable strategy for developing multifunctional PI-based membranes with integrated separation, catalytic, and antifouling properties, showing promising potential for practical water remediation applications.