文献类型：期刊文献

英文题名：A dual VIPS-RTIPS phase inversion technique for fabricating high-performance polyethersulfone (PES) ultrafiltration membranes

作者：Sun, Hui-Lin[1];Wang, Lv-Chao[1];Zhou, Xin-Yi[2];Wei, Yong-Ming[3];Liu, Min[1]

机构：[1]East China Univ Sci & Technol ECUST, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China;[2]Shanghai New Epoch Bilingual Sch, Shanghai 202163, Peoples R China;[3]ECUST, Chem Engn Res Ctr, State Key Lab Chem Engn, Membrane Sci & Engn R&D Lab,Sch Chem Engn, Shanghai 200237, Peoples R China

年份：2026

卷号：321

外文期刊名：CHEMICAL ENGINEERING SCIENCE

收录：;EI(收录号：20254419401854);WOS:【SCI-EXPANDED(收录号:WOS:001608074600004)】；

基金：The authors are thankful for the financial support of the National Natural Science Foundation of China (21978082) .

语种：英文

外文关键词：Polyethersulfone; Membrane; VIPS-RTIPS; Dual phase inversion

摘要：Ultrafiltration membranes have found widespread application in various industries. Moreover, it is well-known that pure water flux, reflecting permeability, and rejection rate, indicating selectivity, are inversely correlated in the permeability selectivity trade-off of membrane separation. Therefore, the challenge lies in optimizing membrane structure and performance through a single manufacturing method while ensuring separation efficiency. In this study, polyethersulfone (PES) ultrafiltration membranes were prepared by a dual vapor induced phase separation-reversed thermally induced phase separation (VIPS-RTIPS) technique. By systematically adjusting the pre-evaporation time (0-100 s), the phase separation kinetics were modulated to tailor the membrane structure and performance. The results demonstrate that the membrane subjected to 10 s of preevaporation exhibits a pure water flux of 354 L/m2 & sdot;h at 0.1 MPa, which represents a 102 % improvement compared to the pure RTIPS membrane, while maintaining a high rejection rate of 93.8 %. This enhancement is attributed to the thinning of the selective skin layer and the formation of a bicontinuous supporting structure. Meanwhile, the uniform morphology devoid of macrovoids endows the membrane with high mechanical strength. This study achieves synergistic integration of the VIPS and RTIPS strategies, offering a novel approach for fabricating PES membranes that combine high pure water flux with superior rejection performance.