▎ 摘　　要

NOVELTY - Preparation of graphene-activated carbon composite material comprises drying activated carbon particles, ultrasonicating graphene solution, diluting, adding with dried activated carbon particles at activated carbon-graphene ratio of 1000:1, drying obtained mixture, mixing product with aqueous aspartic acid solution, standing for 2 hours, removing solid material from aqueous solution, and drying at 120 degrees C. USE - Method for preparing graphene-activated carbon composite material used for air purification (claimed). ADVANTAGE - The method is simple, and has low equipment and material investment. The obtained composite material has high adsorption rate of formaldehyde in air.