文献类型：期刊文献

英文题名：Novel high-flux polyamide/TiO2 composite nanofiltration membranes on ceramic hollow fibre substrates

作者：Li, Yu-Xuan[1];Cao, Yue[1];Wang, Ming[1];Xu, Zhen-Liang[1];Zhang, Hai-Zhen[1];Liu, Xi-Wang[1];Li, Ze[1]

机构：[1]East China Univ Sci & Technol, Chem Engn Res Ctr, Membrane Sci & Engn R&D Lab, State Key Lab Chem Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2018

卷号：565

起止页码：322

外文期刊名：JOURNAL OF MEMBRANE SCIENCE

收录：;EI(收录号：20183605765683);WOS:【SCI-EXPANDED(收录号:WOS:000444090600032)】；

基金：The authors are thankful for financial support from the National Science and Technology Support Project of China (2014BAB07B01 and 2015BAB09B01) and the Key Technology R&D Program of Jiangsu Committee of Science and Technology in China (BE2013031).

语种：英文

外文关键词：Nanofiltration; Interfacial polymerization; Positively charged; Membrane preparation

摘要：Novel polyamide/TiO2 composite nanofiltration (NF) membranes were fabricated by interfacial polymerization of polyethyleneimine and trimesoyl chloride on TiO2-sol-modified ceramic hollow fibre microfiltration substrates. X-ray photoelectron spectroscopy, scanning electron microscopy, atomic force microscopy, and dynamic contact angle measurements were utilised to characterise the chemical structures and morphologies of the prepared membranes. The effects of monomer concentration, reaction time, and immersion time in the aqueous phase were thoroughly investigated in this study. The composite NF membrane prepared under optimised conditions exhibited a high pure water flux (PWF) of 105.5 L m(-2) h(-1) and MgCl2 rejection of 95.5% at 4 bar. In addition, the membrane had excellent antifouling properties with high permeate recovery and low flux decline for bovine serum albumin and humic acid. During a 168 h long-run test, the membrane maintained a high PWF (> 100.0 L m(-2) h(-1)) and high MgCl2 rejection (> 95.0%).