▎ 摘　　要

NOVELTY - The preparation of flower shaped zinc oxide/graphene composite microspheres involves mixing zinc acetate and citric acid, adding deionized water and ethanol, mixing, dripping sodium hydroxide, reacting at 100-150 degrees C for 20-28 hours, cooling, washing with deionized water and ethanol, drying to obtain zinc oxide samples, mixing samples with aqueous solution of graphene oxide, reacting at 100-150 degrees C for 2-4 hours, cooling to room temperature, washing with deionized water and ethanol, and drying zinc oxide/graphene composite microspheres samples overnight at 50-70 degrees C in vacuum. USE - Preparation of flower shaped zinc oxide/graphene composite microspheres useful as photocatalyst. ADVANTAGE - The method enables preparation of flower shaped zinc oxide/graphene composite microspheres, promotes the separation of electrons and holes, and has high photocatalytic efficiency, reduced cost, and reduced UV radiation. DETAILED DESCRIPTION - The preparation of flower shaped zinc oxide/graphene composite microspheres involves mixing zinc acetate and citric acid, adding deionized water and ethanol, uniformly mixing, stirring, dripping sodium hydroxide, transferring solution to reactor, reacting at 100-150 degrees C for 20-28 hours, cooling to room temperature, washing with deionized water and ethanol, drying at 50-70 degrees C overnight in vacuum to obtain zinc oxide samples, mixing zinc oxide samples with aqueous solution of graphene oxide, transferring solution to reactor, reacting at 100-150 degrees C for 2-4 hours, cooling to room temperature, washing with deionized water and ethanol, and drying zinc oxide/graphene composite microspheres samples overnight at 50-70 degrees C in vacuum.