基于新型光催化材料的水处理膜研究进展

Research progress of water treatment membranes based on photocatalytic materials

光催化水处理膜在实现分离要求的同时,可利用其光催化能力对膜表面污染物进行降解并抑制细菌生长,降低膜污染,在水体净化和废水处理中展现了独特优势。文章首先简要介绍了光催化的基本机理,总结了不同新型光催化材料的结构和性能特点。然后,围绕光催化水处理膜的设计与开发,着重论述了石墨碳氮化物(g-C_(3)N_(4))、碳量子点(CQDs)、层状双氢氧化物(LDHs)、金属碳/氮化物(MXenes)、金属有机骨架(MOFs)和共价有机骨架(COFs)基光催化水处理膜的应用及其水处理性能。最后,对光催化水处理膜存在的问题进行了深入分析,并对其未来发展进行了展望。

Photocatalytic water treatment membranes can degrade pollutants on membrane surface and inhibit bacteria growth while achieving separation performance,thus reduces membrane pollution.Therefore,these membranes show unique advantages in water purification and wastewater treatment.In this review,basic mechanism of photocatalytic application is introduced and the structure and performance of different new photocatalytic materials are summarized.Subsequently,considering the design and development of photocatalytic water treatment membranes,the application of g-C_(3)N_(4),CQDs,LDHs,MXenes,MOFs and COFs based membranes and their water treatment performance are discussed.Finally,problems and future development of photocatalytic water treatment membrane are proposed.