▎ 摘　　要

NOVELTY - Preparation of graphene aerogel comprises immersing melamine foam into graphene oxide colloid, drying to melamine foam material attached with graphene oxide, and carrying out heat treatment. USE - The method is for preparation of graphene aerogel used in adsorption or catalytic field (claimed). ADVANTAGE - The method uses cheap melamine foam as structure template, and has simple thermal treatment to obtain graphene aerogel with excellent performance. The whole preparation process has short time consumption and low energy consumption, and is non-toxic and harmless, low in cost, and suitable for industrial production on large scale. The graphene aerogel has preferable adsorptivity to oils. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a graphene aerogel having three-dimensional space structure.