▎ 摘　　要

NOVELTY - Preparing modified air purifying material, comprises (i) preparing graphene oxide suspension; (ii) uniformly mixing graphene oxide suspension, cetyltrimethylammonium bromide and nano-titanium dioxide, adding ammonia solution of silver nitrate and stirring at room temperature for 10 hours to obtain a second suspension; and (iii) adding porous material to the second suspension stirring, centrifugally separating, washing the precipitate with water, drying and calcining at 400-800 degrees C. USE - The method is useful for preparing modified air purifying material. ADVANTAGE - The method exhibits synergistic effect of adsorption and photocatalysis, thus improving the efficiency of air purification. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for air purifying material prepared as mentioned above.