▎ 摘　　要

Due to environmental pollution caused by organic pollutants, there is an urgent need to develop renewable and environmentally friendly energy sources. In this study, N-doped graphene-based CuO/WO3/Cu photocatalyst (CuO/WO3/Cu@CN) was prepared for degrading organic pollutants by using Cu(salen)PW12 complex as the precursor and GO as the substrate. The CuO/WO3/Cu@CN photocatalyst not only solved the problem that CuO/ WO3 heterojunction easily expands into powder and causes poor recyclability, but also effectively promoted the separation of photoinduced eand h(+) and inhibited their recombination. The catalyst can effectively catalyze the decomposition of 4-nitrophenol, and the cycle test confirmed that it has good cycle stability. Under UV-Vis light irradiation, CuO/WO3/Cu@CN can effectively degrade four kinds of organic dyes and the mechanism of pho-tocatalytic degradation of organic dyes was deduced. It is worth noting that N-doped graphene regulates the band-gap of the material, leading CuO/WO3/Cu@CN to generate hydrogen in the photocatalytic process. This study is expected to provide a promising way for effective degradation of organic pollutants.