文献类型：期刊文献

英文题名：Hydrolysis Co-Deposition of Bio-Inspired Hybrid Hydrophilic Network Antifouling Loose Nanofiltration Membrane for Effective Dye/Salt Separation

作者：Tong, Yi-Hao[1]; Wu, Yu-Zhe[1]; Xu, Zhen-Liang[1]; Luo, Li-Han[1]; Jia, Rui[1]; Han, Rui[1]; Xu, Sun-Jie[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, School of Materials Science and Engineering, Shanghai Electronic Chemicals Innovation Institute, East China University of Science and Technology, Shanghai, 200237, China

年份：2023

外文期刊名：SSRN

收录：EI(收录号：20230305372)

语种：英文

外文关键词：Additives - Amino acids - Azo dyes - Coupling agents - Hydrolysis - Hydrophilicity - Magnesium compounds - Microfiltration - Nanofiltration - Nanofiltration membranes - Titanium dioxide - Wastewater treatment - Water filtration

摘要：Nowadays, loose nanofiltration (LNF) membranes with effective filtration performance toward textile wastewater have drawn intensive attention. In this work, a high-performance LNF membrane with was prepared via fast co-deposition of bio-inspired TA-based hydrophilic coating with in-situ hydrolysis of tetra butyl titanate (TBT) on polyethersulfone (PES) substrate at a low-cost. Various additives containing amino acid (L(+)-Arginine) and silane coupling agent (KH792) were mixed in the coating solution and researched their synergistic effect during membrane preparation. In-situ growth of TiO2 and co-deposition of TA-based coating endowed the LNF membrane with a uniformly rough hydrophilic surface. Therefore, the optimal LNF membrane showed a significantly high pure water permeability (92.9 L·m-2·h-1·bar-1) with high rejection (>99.0 %) in treating negatively charged dyes including Eriochrome Black T, Congo Red, Chlorazol Black T, and Coomassie Brilliant Blue G. Meanwhile, low rejections to inorganic salts (Na2SO4: 7.9 %, NaCl: 2.5 %, MgCl2: 2.8%, MgSO4: 7.3%) were reached, and it kept distinguished filtration performance in dealing with highly saline dye wastewater (containing 50 g·L-1 NaCl and Na2SO4, respectively). Beyond that, the membrane had excellent antifouling properties with low flux decline of multiple model pollutants and long-term stability during filtration dye/salt mixture, which revealed the LNF membrane prepared promising potential in actual textile wastewater treatment. ? 2023, The Authors. All rights reserved.