The invention provides a
graphene modified composite
mesoporous carbon microsphere air purifying preparation. A certain amount of beta-
cyclodextrin is added to thin-layered nano-SiO2 particles covering the surfaces of obtained micro-SiO2 particles, a certain quantity of obtained RGO / TiO2 nanoparticles is added simultaneously, -OH, -COOH, C-O-C and C=O
oxygen-containing functional groups rich on the surface of
graphene are adsorbed by and bonded with the RGO / TiO2 nanoparticles on the basis of the
molecular recognition characteristic of beta-
cyclodextrin, then a certain amount of CTAB (cetyltrimethylammonium
bromide) surfactant is added, CTAB serving as a
micelle stabilizer can stop the RGO / TiO2 nanoparticles from further
hydrolysis and growth, and finally, the novel air purifying preparation adopting RGO / TiO2 supported by carbon microspheres with a mesoporous shell structure is obtained. With adoption of the scheme, the purity is high, RGO / TiO2 supported by the carbon microspheres with the mesoporous shell structure in
powder is better in bonding performance, uniform in distribution and controllable in dimension at mesopores, and the air purifying preparation can be used for purifying polluted air and removing dust in a
haze environment as well as photo-catalytically degrading and separating
nitric oxide,
sulfide or other organic pollutants in the polluted air.