Antifouling and antibacterial bioactive metabolites of marine fungus (terrein)/polyamide thin-film composite reverse osmosis membranes for desalination applications
文献类型: 外文期刊
作者: Zhang L.;Yang Q.;Jiang Y.;Yu L.;Song N.;Zhao D.;Sui L.;Dong L.
作者机构:
关键词: Antibacterial;Antifouling;Hydrophilic;Reverse osmosis membrane;Terrein
期刊名称: Desalination
ISSN: 0011-9164
年卷期: 2024 年 572 卷
页码:
收录情况: SCIE(2024版) ; ; EI(2024版)
摘要: Marine fungi-derived (+)-terrein is grafted onto a reverse osmosis polyamide membrane using glutaraldehyde, forming a thin film composite (Terrein-PA) membrane. This membrane exhibits improved water permeability, antifouling and antibacterial properties. Compared to conventional reverse osmosis membranes, Terrein-PA membrane shows a 51.0 % increase in permeability (7.4 L/m2·h·bar) due to its beneficial hydroxyl groups. It also effectively inhibits the growth of gram-positive and gram-negative bacteria, achieving antibacterial rates of 98.0 % and 94.9 %, respectively. This reduces microorganism adhesion, extending the membrane's service life. The use of natural (+)-terrein is safer for human health than chlorine treatments. Furthermore, when contaminated with bovine serum albumin, Terrein-PA membrane achieves a flux recovery rate of 90.9 % and a total contamination rate of 12.3 %. This study introduces an innovative approach to produce secure antibacterial reverse osmosis membranes with prolonged lifespan. © 2023
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