▎ 摘　　要

NOVELTY - Preparing bismuth titanate composite photocatalyst comprises preparing bismuth titanate (Bi12TiO20) gel by sol-gel method, and calcining to obtain bismuth titanate powder, dissolving the graphite oxide colloid to obtain a graphene oxide dispersion, adding bismuth titanate Bi12TiO20powder to the graphene oxide dispersion, stirring, ultrasonically treating, hydrothermally reacting, filtering, washing and drying, and grinding to obtain the finished product. USE - The photocatalyst is useful in degrading rhodamine B (claimed). ADVANTAGE - The method: inhibits the agglomeration of bismuth titanate nanoparticles by adding graphene; increases the contact area between the catalyst and the reactant; accelerates transfer of photogenerated carriers to avoid re-compounding; and improves the performance of photocatalysts for degrading rhodamine B. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a bismuth titanate composite photocatalyst prepared by the above-mentioned method.