▎ 摘　　要

NOVELTY - A dilute sulfuric acid and graphene oxide co-doped modified titanium dioxide composite material is prepared by adding tetrabutyl titanate in ethanol to form solution A, preparing ethanol-sulfuric acid solution to form solution B, adding solution B into solution A, stirring to obtain mixed solution, constant temperature reacting, cooling to obtain slurry, centrifugally separating to obtain precipitate, washing, drying and grinding to obtain powder, calcining to obtain sulfuric acid-titanium dioxide composite material, adding to graphene oxide dispersion, stirring reacting to form suspension, another constant temperature reacting to obtain crude product, washing and drying crude product. USE - The method is used for preparing dilute sulfuric acid and graphene oxide co-doped modified titanium dioxide composite material for environmental pollution restoration, especially degradation of tetracycline hydrochloride in waste water (claimed). ADVANTAGE - The method is simple and suitable for large-scale production, and has low cost. The product has high purity.