▎ 摘　　要

NOVELTY - Oxidized graphite is ultrasonically dispersed in deionized water, to obtain oxidized graphene dispersion. Solid polydopamine-modified carbon nanomaterial is prepared with carbon nanomaterial and dopamine. Polydopamine-modified carbon nanomaterial is dispersed in deionized water, to obtain polydopamine-modified carbon nanomaterial dispersion. Oxidized graphene dispersion and polydopamine-modified carbon nanomaterial dispersion are mixed and ultrasonically dispersed, reacted and freeze-dried, to obtain polydopamine-modified carbon nanomaterial/graphene hybrid aerogel. USE - Preparation of polydopamine-modified carbon nanomaterial/graphene hybrid aerogel (claimed). ADVANTAGE - The method enables preparation of polydopamine-modified carbon nanomaterial/graphene hybrid aerogel having excellent adsorption characteristics with respect to oil solvent by simple and environmentally-friendly method with high yield. DETAILED DESCRIPTION - Oxidized graphite is ultrasonically dispersed in deionized water, to obtain oxidized graphene dispersion with concentration of 1-10 mg/mL. Solid polydopamine-modified carbon nanomaterial is prepared with carbon nanomaterial and dopamine. Polydopamine-modified carbon nanomaterial is dispersed in deionized water, to obtain polydopamine-modified carbon nanomaterial dispersion with concentration of 1-10 mg/mL. Oxidized graphene dispersion and polydopamine-modified carbon nanomaterial dispersion are mixed and ultrasonically dispersed, to obtain polydopamine-modified carbon nanomaterial/graphene mixed dispersion. The polydopamine-modified carbon nanomaterial/graphene mixed dispersion is reacted at 80-120 degrees C for 6-24 hours, to obtain polydopamine-modified carbon nanomaterial/graphene hybrid hydrogel. The polydopamine-modified carbon nanomaterial/graphene mixed hydrogel is freeze-dried, to obtain polydopamine-modified carbon nanomaterial/graphene hybrid aerogel.