▎ 摘　　要

NOVELTY - Pickering emulsion comprises 0.3-1 pts. wt. graphite oxide, 0-1.84 pts. wt. salt, 0.00365-0.63 pts. wt. acid, 0.9-5 pts. wt. ascorbic acid, 100 pts. wt. water and 0.2-1 times volume of water of vegetable oil. USE - The Pickering emulsion is useful for preparing graphene aerogel (claimed). ADVANTAGE - The method does not need complex operation conditions and corrosive substance, can realize the exact porosity control, can realize large scale preparation. The graphene aerogel has good transverse and longitudinal pressing resilience, keeps the pore structure, the petroleum product has excellent adsorption capability, and has wide use prospect. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparation of the graphene aerogel based on emulsion method comprising (1) weighing specific amount of graphite oxide, and ultrasonically dispersing in water to obtain the graphite oxide aqueous solution; (2) adding specific amount of ascorbic acid and salt into the resulting graphite oxide aqueous solution, adding specific acid to adjust pH to 1-3, adding specific amount of vegetable oil, stirring uniformly to obtain the stable Pickering emulsion, and (3) using the resulting prepared Pickering emulsion, performing hydrothermal reaction, after the completion of reaction to obtain graphene hydrogel; removing plant oil through solvent replacement method, and freeze-drying to obtain the graphene aerogel.