ABSTRACT

Photocatalytic degradation is an upcoming technique for the removal of organic pollutants from wastewater. This topic attracts increasing interest due to its potential of utilizing “freely” available solar energy for environmental purification. In recent years, MoS₂ based photocatalysts have garnered substantial attention for their graphene-like structure and suitable bandgap for visible light photocatalysis, unlike that of TiO₂. However, pure MoS₂ has many disadvantages like the high recombination rate of its electron-hole pairs as well as narrow bandgap, which affects its efficiency as a photocatalyst. It has been proven that heterojunction photocatalysts of MoS₂ have an increased photoactivity when compared to pristine MoS₂. The latest advancements in the field of MoS₂ based ternary composites are summarized in this review, with a special emphasis on the application part for wastewater treatment. We have compiled relevant information for the degradation of organic pollutants using photocatalysis with the aim to further the research in this field.

摘要

光催化降解是一种新兴的去除废水中有机污染物的技术。由于其利用“免费”可用太阳能进行环境净化的潜力，该主题引起了越来越多的兴趣。近年来，与 TiO ₂不同，基于MoS ₂的光催化剂因其类石墨烯结构和适合可见光光催化的带隙而受到广泛关注。然而，纯MoS ₂具有许多缺点，例如其电子-空穴对的复合率高以及带隙窄，这影响了其作为光催化剂的效率。已经证明，与原始 MoS2 相比， MoS _{2的异质结光催化剂具有更高的光活性2} . 本文综述了MoS ₂基三元复合材料领域的最新进展，重点介绍了在废水处理中的应用部分。我们整理了光催化降解有机污染物的相关资料，旨在进一步推进该领域的研究。