▎ 摘　　要

NOVELTY - Preparing oxygen-deficient tungsten oxide (W18O49)/graphitic carbon nitride (g-C3N4)/reduced graphene oxide (RGO) semiconductor photocatalyst comprises taking graphene composite metal ion doped semiconductor photocatalyst graphitic carbon nitride as base, uniformly doping oxygen-deficient tungsten oxide in graphitic carbon nitride by hydrothermal method, compounding graphene oxide, specifically using the optimized Hummers method to prepare graphene oxide, ultrasonically peeling the prepared graphite oxide to prepare monodisperse graphene oxide solution, dissolving oxygen-deficient tungsten oxide and graphitic carbon nitride in the deionized water, then adding graphene oxide solution, fully mixing uniformly, transferring the solution to a stainless steel reaction kettle with polytetrafluoroethylene lining, performing hydrothermal reaction, separating the grey blue precipitate by centrifugal separation, and using deionized and ethanol water to clean, and drying. USE - The photocatalyst is useful in light degradation methyl orange (claimed). ADVANTAGE - The photocatalyst: has clear structure; is clear; can be obviously enhances the visible light spectrum response range of graphitic carbon nitride by doping oxygen-deficient tungsten oxide; after compounding with graphene; increases diffusion range of photo-generated carrier; inhibits photogenerated electron-hole pair recombination to enhance visible photocatalytic activity, which is a promising visible light material photocatalytic.