▎ 摘　　要

NOVELTY - A graphene-silver tungstate composite photocatalytic material comprises silver tungstate. The silver tungstate is rod-like structure, and wrapped graphene. USE - Graphene-silver tungstate composite photocatalytic material is used for absorption-photocatalytic degradation of organic dye. ADVANTAGE - The graphene-silver tungstate composite photocatalytic material is efficiently prepared with absorption effect. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of graphene-silver tungstate composite photocatalytic material, which involves dissolving graphene oxide in deionized water, ultrasonically treated for 3-5 hours, obtaining dispersion, adding silver nitrate solution, gradually adding sodium tungstate aqueous solution, stirring uniformity, obtaining mixed solution, heating at 140-200 degrees C for 12-24 hours, naturally cooling to room temperature, centrifuging and separating, then washing using distilled water and absolute ethyl alcohol, and vacuum-drying.