文献类型：期刊文献

英文题名：Fine-tuning of fully-aromatic polyamide membrane for fluorinated water purification

作者：Gao, Sheng-Li[1];Li, Lan-Qian[1];Huang, Jie[1];Xu, Zhen-Liang[1];Tang, Yong-Jian[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

年份：2023

卷号：140

期号：25

外文期刊名：JOURNAL OF APPLIED POLYMER SCIENCE

收录：;EI(收录号：20231714017349);WOS:【SCI-EXPANDED(收录号:WOS:000973886500001)】；

基金：ACKNOWLEDGMENTS The authors are thankful for the funding support provided by the State Key R&D Program of China (2021YFB3801103 and 2021YFB3801101) and the National Natural Science Foundation of China (21808060).

语种：英文

外文关键词：fluorine; interfacial polymerization; membrane; m-phenylenediamine

摘要：High concentrations of fluoride in drinking water can lead to fluorosis of teeth and bones and other serious diseases, while nanofiltration is an attractive technique for fluoride removal. Interfacial temperature can determine the monomer diffusion rate in interfacial polymerization (IP) process, thereby tuning the structure of membrane such as thickness, pore size and surface charge. Herein, a fully-aromatic polyamide nanofiltration membrane with desirable separation performance was customized by interface temperature. The resulting membrane exhibits a flux of 6 L m(-2) h(-1) bar(-1) and the molecular weight cut-off is 211 Da, most importantly, a 90.3% F- rejection to underground water, indicating that the membrane has application potential in underground water treatment. This work helps to better understand the effects of interface temperature on the IP process and provides a new strategy to address the drinking water problem.