▎ 摘　　要

NOVELTY - Graphene aerogel with photocatalytic activity comprises 70-95 %mass bismuth tungstate and 5-30 %mass graphene. USE - As graphene aerogel with photocatalytic activity. ADVANTAGE - The graphene aerogel has a large specific surface area, a band gap of up to 2.96 eV, has strong absorption of visible light, effectively improves the separation of photo-generated carriers and reduces the recombination rate of carriers, has excellent photocatalytic performance. The method produces uniform particles, has low equipment operation requirements, is simple in process and ensures easy control of process conditions. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing the graphene aerogel with photocatalytic activity comprising (a) dissolving bismuth(III) nitrate in ethylene glycol and sonicating, (b) dispersing graphene oxide in deionized water by ultrasonic treatment, (c) adding the solution prepared in step (a) to the solution prepared in step (b), and stirring and mixing, (c) adding sodium tungstate to the solution prepared in step (c), continuously stirring and mixing, and transferring to the reactor for hydrothermal reaction, and (e) using deionized water to soak and cleaning the product obtained in step (d), and freeze-drying to obtain the product.