▎ 摘　　要

NOVELTY - The preparation method of graphene oxide/antimony doped-bismuth(III) oxybromide composite photocatalyst involves (i) dissolving bismuth(III) nitrate pentahydrate and antimony trichloride in polar organic solvent, adding sodium bromide, and surfactant, ultrasonically oscillating, stirring, ultrasonically oscillating, transferring the shaken solution to autoclave, heat preserving, washing, filtering, and drying to obtain antimony doped-bismuth(III) oxybromide photocatalyst. USE - Preparation of graphene oxide/antimony-bismuth(III) oxybromide composite photocatalyst used in treatment of large-scale sewage. ADVANTAGE - The method enables the preparation of graphene oxide/antimony-bismuth(III) oxybromide composite photocatalyst which has narrow band gap width, conductive property, charge recombination inhibition function, large specific surface area, and excellent photocatalytic adsorption capacity, and is suitable for degradation of dye. DETAILED DESCRIPTION - The preparation method of graphene oxide/antimony doped-bismuth(III) oxybromide composite photocatalyst involves (i) dissolving bismuth(III) nitrate pentahydrate and antimony trichloride in polar organic solvent, where the ratio of bismuth and antimony is 100:(1-5), adding sodium bromide, and surfactant, ultrasonically oscillating, stirring, ultrasonically oscillating, transferring the shaken solution to a Teflon (RTM: Polytetrafluoroethylene) autoclave, heat preserving, washing, filtering, drying to obtain antimony doped-bismuth(III) oxybromide photocatalyst, (ii) placing antimony doped-bismuth(III) oxybromide photocatalyst and graphene oxide in deionized water, ultrasonically oscillating, mixing, ultrasonically vibrating, washing, filtering, and drying to obtain graphene oxide/antimony doped-bismuth(III) oxybromide composite photocatalyst precursor, placing the precursor in a muffle furnace, heating, and calcining.