▎ 摘　　要

NOVELTY - Highly stable silver oxide-graphene composite material comprises silver oxide and graphene, where the mass ratio of the silver oxide to graphene is 10-20:100. USE - The highly stable silver oxide-graphene composite material is useful for visible light catalytic degradation of organic dye malachite green (Claimed). ADVANTAGE - The highly stable silver oxide-graphene composite material: inhibits the occurrence of photocorrosion; degrades malachite green in organic dye wastewater under the irradiation of simulated sunlight; has strong photocatalytic activity and high photochemical stability; is convenient for recycling. The method is simple, which has great application value in environmental sewage treatment. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing highly stable silver oxide-graphene composite material comprising (i) dissolving silver nitrate in deionized water according to the mixing ratio, stirring uniformly well to prepare an silver nitrate aqueous solution, (ii) mixing graphene powder, the dispersant and the solvent according to the mixing ratio, and uniformly dispersing the obtained mixed solution by ultrasound to obtain graphene dispersion liquid, and (iii) adding the silver nitrate aqueous solution to the graphene dispersion obtaining, mixing, adding an alkaline solution, adjusting the pH value of the obtained mixed solution to 8-10, heating to a constant temperature of 80-120 degrees C, performing the reaction for 1-2 hours, after the reaction is completed, cooling the product to room temperature, centrifuging the product, washing, vacuum filtering, and drying under vacuum to obtain the highly stable silver oxide-graphene composite material.