文献类型：期刊文献

英文题名：Ag-based nanocapsule-regulated interfacial polymerization Enables synchronous nanostructure towards high-performance nanofiltration membrane for sustainable water remediation

作者：Istirokhatun, Titik[1,2];Lin, Yuqing[3];Shen, Qin[1];Guan, Kecheng[1];Wang, Shengyao[1];Matsuyama, Hideto[1]

机构：[1]Kobe Univ, Dept Chem Sci & Engn, Res Ctr Membrane & Film Technol, Kobe, Hyogo 6578501, Japan;[2]Diponegoro Univ, Fac Engn, Dept Environm Engn, Jl Prof Soedarto Tembalang, Semarang 50275, Indonesia;[3]East China Univ Sci & Technol, Sch Resources & Environm Engn, Shanghai 200237, Peoples R China

年份：2022

卷号：645

外文期刊名：JOURNAL OF MEMBRANE SCIENCE

收录：;EI(收录号：20215211399699);WOS:【SCI-EXPANDED(收录号:WOS:000789613400002)】；

基金：Titik Istirokhatun expresses thanks to the financial support from the Ministry of Education and Culture of the Republic of Indonesia through the Doctoral Degree Scholarship Program, the Grant No. 4632/UN7.P/KU/2019.

语种：英文

外文关键词：Ag-based nanocompounds; Interfacial polymerization; Highly permselectivity; Nanofiltration; Antifouling

摘要：In this work, Ag-based compound nanorods were molecularly synthesized followed by the incorporation into PA active layer through interfacial polymerization (IP) process. This strategy achieved the concurrent construction of molecular sieving architecture and tunable surface function, by precisely controlling the release of zero dimensional Ag nanoparticles (AgNPs, -5 nm), via in situ decomposition of the pH-responsive compounds serving as sacrificial nanocapsules. Featuring favorable interactions and sizes, the released ultrafine AgNPs serves as a quasi-molecule-scale regulator to generate the thin-film nanocomposite (TFN) membrane with wrinkled surface microstructures and loose internal architecture, due to the adjusted diffusion rate of amine monomers toward the organic phase during IP, while endowing the resultant membrane with superior antifouling/antibiofouling properties. The newly-developed AgNPs embedded PA (AgNPs@PA) TFN membrane exhibited a high water permeance of 10.4 L m(-2) h(-1) bar(-1) (more than twice that of the pristine PA [4.5 L m(-2) h(-1) bar(-1)]) with a rejection ratio of 97.7% for Na2SO4, performing a competitive desalination property among the state-of-the-art nanofiltration membranes. The proposed technique for tuning the membrane microstructure opens opportunities for developing high-performance nanofiltration membranes for energy-efficient water remediation and treatment applications.