▎ 摘　　要

NOVELTY - A graphene modified air purification material comprises mixture of particles (A) and particles (B) in a weight ratio of 1:9-9:1. The particles (A) are porous adsorption particles having polarity, loaded with graphene. The particles (B) are catalyst carrier particles supported on oxidant. The particles (A) and particles (B) have diameter of 2-5 mm. USE - Graphene modified air purification material. ADVANTAGE - The graphene modified air purification material is environmentally-friendly, and has increased specific surface area through adsorption of graphene, and utilizes particle (A) and particle (B) having good synergistic effect, efficient adsorption and oxidative decomposition which purifies the air and harmful gas molecules. The particle (A) adsorbs harmful gas molecules such as formaldehyde, benzene, hydrogen sulfide and ammonia, and the oxidant in particle (B) is completely in contact with the harmful gas, and is oxidized and decomposed into harmless solid particles or harmless gases. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of graphene modified air purification material, which involves preparing thickener solution containing polyacid/polybasic electrolyte having concentration of 5-25 g/L and an inorganic salt having concentration of 0.05-3 mol/L, immersing the porous adsorption particles having particle size of 500 mesh in the thickener solution for 5-30 minutes, covering the surface and inner pores of the porous particles with the thickener solution, drying at 50-100 degrees C to obtain treated porous adsorption particles, preparing graphene solution having concentration of 10-80 wt.%, immersing the treated porous adsorption particles in the graphene solution for 5-30 minutes, removing, drying at 50-100 degrees C, cooling, granulating in a granulator to obtain initial particle (A), drying the initial particles (A) at 150-250?OC for 2-6 hours, activating at 700-1000 degrees C for 0.5-3 hours to obtain particle (A), immersing the catalyst carrier particles in the thickener solution for 5-30 minutes, covering the surface and inner pores of the catalyst carrier particles with a thickener solution, drying at 50-100 degrees C to obtain treated catalyst carrier particles, preparing mixed solution containing 3-12 %mass oxidant and 3-12 %mass hardener, immersing the treated catalyst carrier particles in the mixed solution for 5-30 minutes, removing the hardened catalyst at 20-120 degrees C to obtain particles (B), and mixing particles (A) and particles (B).