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

第一作者： Zhang, Lin

作者： Zhang, Lin;Yang, Qian;Jiang, Yanzhuang;Yu, Liyan;Song, Na;Sui, Lina;Dong, Lifeng;Yu, Liyan;Song, Na;Zhao, Donglin;Dong, Lifeng

作者机构：

关键词： Antibacterial; Reverse osmosis membrane; Terrein; Antifouling; Hydrophilic

期刊名称：DESALINATION （ 影响因子：9.9； 五年影响因子：9.7 ）

ISSN： 0011-9164

年卷期： 2024 年 572 卷

页码：

收录情况： SCI

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 & sdot;h & sdot;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.

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