▎ 摘　　要

NOVELTY - Preparing super-hydrophobic graphene/polyvinyl alcohol aerogel comprises (a) adding polyvinyl alcohol to deionized water, and stirring at high temperature for a period of time to form a polyvinyl alcohol solution, (b) adding graphene oxide into deionized water, and ultrasonically obtaining a graphene oxide suspension, (c) adding polyvinyl alcohol solution in graphene oxide suspension, and obtaining graphene oxide/polyvinyl alcohol suspension through ultrasonic and stirring treatment, (d) placing above-mentioned graphene oxide/polyvinyl alcohol suspension into refrigerator and freezing into ice cubes, then freeze-drying to obtain graphene/polyvinyl alcohol aerogel, and (e) vapor-depositing the above graphene/polyvinyl alcohol aerogel with a low surface energy modifier to obtain finished product. USE - The aerogel is useful in separating water-in-oil emulsion (claimed). ADVANTAGE - The aerogel: has wide practical application prospect in high speed and high precision oil-water emulsion separation. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a super-hydrophobic graphene/polyvinyl alcohol aerogel prepared by the above-mentioned method.