▎ 摘　　要

NOVELTY - The preparation method of multilayer stripping flower-shaped structure graphene oxide involves: (1) dispersing a carbon material in concentrated sulfuric acid, adding potassium persulfate, heating at 80-85 degrees C, carrying out stirring at a constant temperature for 4-5 hours to obtain a uniform pre-oxidation product, cooling to room temperature, dispersing the obtained product in ultrapure water, filtering, washing with ethanol and ultrapure water, and drying to obtain a pre-oxidized carbon material; and (2) adding pre-oxidized carbon material to a mixed solution of concentrated sulfuric acid and concentrated nitric acid, stirring at 0-5 degrees C for 10-15 minutes, uniformly mixing the reactants, slowly adding potassium chlorate to the mixture, carrying out stirring reaction at room temperature for 100-120 hours, dispersing the obtained product in ultrapure water, filtering, washing with ethanol and ultrapure water, and drying to obtain the product. USE - The method is useful for preparing multilayer stripping flower-shaped structure graphene oxide, which is useful as composite filler. ADVANTAGE - The method prepares multilayer stripping flower-shaped structure graphene oxide with good peeling effect and large specific surface area of 200-300 mu m. The prepared graphene oxide has wide application prospect in graphite oxide-related composite materials.