▎ 摘　　要

Photocatalytic nanomaterials are attracting more and more attention because of their potential for solving environmental problems. ZnO, as one of the most promising photocatalysts, can only be excited by ultraviolet (UV) or near UV radiation. The objective of the study is to describe an efficient visible light driven ZnO based photocatalyst. In this regard, we communicate the preliminary research on the synthesis, characterisation and photocatalytic properties of ZnO-Bi2O3/graphene oxide (GO) composite materials. It was found that the photodegradation of methylene blue in the presence of ZnO-Bi2O3/GO reached 99.62% after irradiation with visible light for 2 h. The presence of GO enhances the stability of ZnO-Bi2O3 and reduces the recombination of charge carriers. ZnO-Bi2O3/GO also shows high photocatalytic activity for the degradation of acid blue, acid yellow, reactive red, acid red, reactive yellow and reactive blue under visible light irradiation. The novel aspect is the combination of GO and Bi2O3 doped ZnO. The use of GO enhances the efficiency of photocatalysis, and Bi2O3 doping ZnO excites the absorption of visible light. The impact of the research concerns the study of ZnO-Bi2O3/GO, which can be used as a promising photocatalyst for the treatment of textile wastewater.