▎ 摘　　要

NOVELTY - Preparing graphene-antimony sulfide micro-rod composite photocatalyst comprises e.g. (i) adding graphene oxide into deionized water, (ii) mixing antimony trichloride and hydrochloride, and then adding into graphene oxide-deionized water dispersion A, stirring to obtain mixture B, (iii) adding sodium thiosulfate pentahydrate into deionized water, stirring to obtain mixed solution C, and (iv) pouring mixture B into mixed solution C, stirring continuously to obtain mixed solution D, then transferring mixture D into hydrothermal reactor, washing black precipitate, and drying. USE - The method is useful for preparing graphene-antimony sulfide micro-rod composite photocatalyst (claimed). ADVANTAGE - The graphene-antimony sulfide micro-rod composite photocatalyst is environment-friendly, and has low cost, good composite effect, visible light with high light catalytic activity. DETAILED DESCRIPTION - Preparing graphene-antimony sulfide micro-rod composite photocatalyst comprises (i) adding graphene oxide into deionized water, ultrasonically stripping for 1-3 hours to obtain graphene oxide-deionized water dispersion A, (ii) mixing antimony trichloride and hydrochloride in a mass ratio of 1:22-48, dissolving antimony trichloride in concentrated hydrochloric acid to obtain antimony trichloride hydrochloric acid solution, and then adding into graphene oxide-deionized water dispersion A, stirring to obtain mixture B, (iii) adding sodium thiosulfate pentahydrate into deionized water, stirring, where amount of sodium thiosulfate pentahydrate is 2-4 times the amount of antimony trichloride substance, then adding sodium hydroxide, where ratio between sodium hydroxide and hydrochloric acid is 1:1.10-1.35 to obtain mixed solution C, and (iv) pouring mixture B into mixed solution C, stirring continuously to obtain mixed solution D, then transferring mixture D into hydrothermal reactor, reacting at 150-180 degrees C for 6-18 hours, naturally cooling to room temperature, performing centrifugal separation to obtain black precipitate, washing black precipitate with deionized water and absolute ethanol, and drying to obtain final product.