▎ 摘　　要

NOVELTY - Graphite oxide is added to aqueous solution and ultrasonically dispersed, to obtain aqueous solution of graphene oxide. Graphene carbon nanodots are added to aqueous solution of graphene oxide and ultrasonically dispersed. A reducing agent and ammonia are added to mixture and stirred, to form mixed solution. A sponge is dipped in mixed solution, sealed, placed in water bath and reacted. Excess solution is removed and freeze dried, to obtain aerogel composite adsorbent. USE - Preparation of aerogel composite adsorbent used for removing indoor formaldehyde. ADVANTAGE - The method enables preparation of aerogel composite adsorbent having excellent adsorption characteristics, by efficient, simple and environmentally-friendly method.