文献类型：期刊文献

英文题名：Crosslinked Pmia Thin-Film Composite Membrane with Excellent Dye Desalination Performance Fabricated Via the T-Flo Technique

作者：Li, Ping-Ping[1]; Xu, Zhen-Liang[1]; Fang, Yin-Xin[1]; Gao, Ling-Lin[1]; Ding, Rui[1]

机构：[1] State Key Laboratory of Chemical Engineering, Membrane Science and Engineering R&D Lab, Chemical Engineering Research Center, School of Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China

年份：2023

外文期刊名：SSRN

收录：EI(收录号：20230090988)

语种：英文

外文关键词：Aromatic compounds - Chromium - Composite films - Composite membranes - Desalination - Fabrication - Morphology - Sodium chloride

摘要：It has illustrated that fabricating poly (m-phenyleneisophthalamide) (PMIA) thin-film composite (TFC) membranes via the T-FLO technique is feasible. However, its dye desalination performance is undesirable. To enhance the dye desalination performance of the PMIA-based TFC membrane, introducing crosslinkers (amine and epoxide monomers) into the PMIA dope solution for the first time. Novel crosslinked PMIA thin-films (CPMIA) were generated. The effect of crosslinker type and concentration on the morphology and the ion permeance have been investigated systematically. After facilitating the T-FLO technique, novel TFC membranes with CPMIA active layers were obtained. The optimized TFC membranes (TFC-PE) showed fantastic dye desalination performance. For feeding solution containing 100 ppm CR and 1 g/L NaCl, the permeance was 25.17 L·m-2·h-1·bar-1, CR and NaCl rejection was 99.88% and 6.30%. The selective coefficient [[EQUATION]] was up to 793.9. Besides, the thermal resistance, anti-fouling capability, and long-term stability were discussed. In conclusion, the obtained CPMIA TFC membranes show a promising future for dye desalination. ? 2023, The Authors. All rights reserved.