文献类型：期刊文献

英文题名：Ultrathin cyclodextrin-based nanofiltration membrane with tunable microporosity for antibiotic desalination

作者：Zhou, Linlong[1];Gu, Shuyun[1];Xu, Fang[2];Zhang, Jin[1];Hu, Zheyi[1];Li, Siyao[1];Xu, Zhi[1]

机构：[1]East China Univ Sci & Technol, Sch Chem Engn, State Key Lab Chem Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]Nanjing Tech Univ, Coll Chem Engn, State Key Lab Mat Oriented Chem Engn, Nanjing 211800, Peoples R China

年份：2025

卷号：715

外文期刊名：JOURNAL OF MEMBRANE SCIENCE

收录：;EI(收录号：20244717385315);WOS:【SCI-EXPANDED(收录号:WOS:001360251200001)】；

基金：This work was financially supported by the National Natural Science Foundation of China (Grant No. 22308099 and 23FAA02066) , the open foundation of State Key Laboratory of Chemical Engineering (No. SKL-ChE-23B01) .

语种：英文

外文关键词：Interfacial polymerization; Cyclodextrin-based membranes; Ion separation; Antibiotic desalination

摘要：Nanofiltration (NF) membranes play a crucial role in ion separation and antibiotic purification due to their energy efficiency and environment-friendliness. However, conventional polymeric membranes are susceptible to the "trade-off" between permeability and selectivity due to the lack of intrinsically rigid micropores. Herein, the amino-cyclodextrins (amino-CDs) with different cavity sizes were synthesized and employed as the building block to construct 15-nm-thick nanofilms. The rational incorporation of macrocycles with well-defined and tunable cavity into nanofilm enabled a significant enhancement of water permeance and a precise manipulation of molecular weight cut-off of the membranes. Thanks to the significant difference of inherent energy barrier for passage of ions through CD cavity, the CD-incorporated membranes achieved a high Cl- /SO42- selectivity of 87. In addition, the CD-regulated membranes showed an excellent antibiotic desalination performance, outperforming the state-of-the-art membranes for antibiotic purification. This work provides a gateway to the development of nanofiltration membranes with precise molecular sieving for antibiotic desalination.