Versatile and efficient photopolymerization approach to zinc oxide-composed dual functional membranes for sustainable water treatment
Versatile and efficient photopolymerization approach to zinc oxide-composed dual functional membranes for sustainable water treatment
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DOI：
10.1016/j.matt.2023.12.033
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发表时间：
2024-03-06
期刊：
影响因子：
18.9
通讯作者：
Fang，Lei
中科院分区：
文献类型：
--
作者：
Li，Chenxuan;Jiangli，Boliang;Fang，Lei
受有机污染物污染的水严重威胁人类健康和生态系统。尽管在水处理膜方面取得了进展，但其复杂的制造工艺和处理复杂废水处理的局限性仍然存在挑战。在这里，我们介绍了一个简单的，可持续的，可扩展的，和适应性强的战略，用于制造超滤膜使用氧化锌（ZnO）引发的光聚合。在这种方法中使用的ZnO纳米粒子提供聚合的空间控制，提高表面粗糙度，以诱导超亲水性除油，并催化溶解的有机污染物的光降解。这种方法的多功能性允许制造三种不同类型的膜，在不同的水处理场景中展示卓越的性能。分层和乳化的油/水混合物可以有效分离（>99.0%），通量高达19，700 L m− 2 h −1。此外，超过90%的可溶性有机污染物可以在两个过滤周期内被光降解，同时去除油。这种膜制造策略为可持续水处理应用中的超氧化物和光催化膜的规模化生产铺平了道路。
Water contaminated with organic pollutants significantly threatens human health and ecosystems. Despite advances in water treatment membranes, challenges persist in their complex fabrication processes and limitations in handling intricate wastewater treatments. Here, we introduce a straightforward, sustainable, scalable, and adaptable strategy for fabricating superwettable membranes using zinc oxide (ZnO)-initiated photopolymerization. ZnO nanoparticles used in this approach provide spatial control for polymerization, enhance surface roughness to induce superhydrophilicity for oil removal, and catalyze photodegradation of dissolved organic contaminants. Versatility of this approach allows the fabrication of three distinct types of membranes, showcasing exceptional performance in diverse water treatment scenarios. Stratified and emulsified oil/water mixtures can be separated efficiently (>99.0%), with fluxes up to 19,700 L m−2h−1. In addition, over 90% of soluble organic pollutants can be photodegraded within two filtration cycles, concurrently with oil removal. This membrane-fabricating strategy paves the way for the scalable production of superwettable and photocatalytic membranes for sustainable water treatment applications.