▎ 摘　　要

NOVELTY - The preparation of graphene/silica aerogel composite adsorbent involves adding hydrochloric acid solution, powdered graphene and activated clay to mixed solution of tetraethyl orthosilicate, water and ethanol, ultrasonically vibrating, adding ammonia aqueous solution, storing at room temperature to obtain gel, dissolving gel in tetraethyl orthosilicate, ethanol and aqueous ammonia mixed solution, aging, immersing the solution in n-hexane to displace the solvent, modifying n-hexane solution containing trimethylchlorosilane, normal temperature and pressure drying. USE - Preparation of graphene/silica aerogel composite adsorbent (claimed).