▎ 摘　　要

NOVELTY - Preparation of three-dimensional self-assembly graphene involves using graphite as raw material, oxidized graphene as an initiator which is dialyzed in deionized water, obtaining an oxidized graphene aqueous solution, carrying out hydrothermal process on the oxidized graphene aqueous solution under acidic condition, obtaining three-dimensional self-assembly graphene hydrogel, washing the obtained product with deionized water, freezing, and drying. USE - Preparation of three-dimensional self-assembly graphene (claimed). ADVANTAGE - The method enables preparation of three-dimensional self-assembly graphene having mechanical property. The three-dimensional self-assembly graphene is strong in absorbing oil organic solvents.