▎ 摘　　要

NOVELTY - Preparing graphene oxide comprises structural designg and preparing graphene oxide, the structure design of the graphene oxide is graphene oxide structure design based on the density functional theory method, the preparation of graphene oxide is the preparation of carboxy-rich graphene oxide, the preparation of carboxy-rich graphene oxide mainly includes mixing natural graphite powder and concentrated sulfuric acid, adding potassium permanganate to ice-water bath and stirring with polytetrafluoroethylene, performing high-temperature reaction on graphene oxide after water treatment, adding hydrogen peroxide and performing suction filtration to obtain filter cake and stirring and dispersing to obtain graphite oxide water system dispersion. USE - The graphene oxide is useful for adsorbing unsymmetrical dimethylhydrazine in aqueous solution (claimed). ADVANTAGE - The method: reduces the maximum escape amount of unsymmetrical dimethylhydrazine gas; and does not damaging the escape suppression ability of carboxy rich graphene oxide. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: 1. graphene oxide obtained by above method, the graphene oxide is carboxy-rich graphene oxide, the edges of the carboxy-rich graphene oxide are carboxy functional groups; and 2. adsorbing unsymmetrical dimethylhydrazine in an aqueous solution utilizing graphene oxide, comprising taking graphene oxide to adsorb unsymmetrical dimethylhydrazine in an aqueous solution includes using carboxy-rich graphene oxide suspension to process to form a carboxy-rich graphene oxide suspension-unsymmetrical dimethylhydrazine solution, preferably taking graphene oxide to adsorb unsymmetrical dimethylhydrazine in an aqueous solution comprises using a suspension of carboxy-rich graphene oxide loaded with ferric oxide tetroxide for processing to form a suspension of loaded ferric oxide-rich carboxy group graphene oxide-unsymmetrical dimethylhydrazine solution, or absorbing unsymmetrical dimethylhydrazine in the aqueous solution as an escape inhibitor added by an external source is applied to leakage accident treatment using graphene oxide, the graphene oxide is carboxy-rich graphene oxide loaded with ferric iron tetroxide, which is used as an escape inhibitor added from an exogenous source to increase the green and recyclable performance.