Calcium Ion Coordinated Polyamide Nanofiltration Membrane for Ultrahigh Perm-selectivity Desalination  

作　　者：BIAN Xiangying ZHANG Yuping GONG Li ZHU Yuzhang JIN Jian 

机构地区：[1]i-Lab and CAS Key Laboratory of Nano-Bio Interface,CAS Center for Excellence in Nanoscience,Suzhou Institute of Nano-Tech and Nano-Bionics,Chinese Academy of Sciences,Suzhou,215123,P.R.China [2]College of Chemistry,Chemical Engineering and Materials Science&Collaborative Innovation Center of Suzhou Nano Science and Technology,Soochow University,Suzhou,215123,P.R.China

出　　处：《Chemical Research in Chinese Universities》2021年第5期1101-1109,共9页高等学校化学研究（英文版）

基　　金：This work was supported by the National Natural Science Foundation of China(Nos.21988102,51873230);the National Natural Science Funds for Distinguished Young Scholars,China(No.51625306);the Found of the Youth Innovation Promotion Association CAS(No.2021318).

摘　　要：Improving the permeate flux but retaining the rejection of thin-film composite(TFC)polyamide nanofiltration(NF)membrane is a high requirement for desalination.In this work,a calcium ion(Ca^(2+))coordinated polyamide(PA)NF membrane was prepared by directly adding CaCl_(2) to the piperazine(PIP)aqueous solution during the interfacial polymerization process.Due to the coordination interaction between Ca^(2+)and the amide bond in PA active layer.

关 键 词：PROCESS SELECTIVITY retaining 

分 类 号：O63[理学—高分子化学]