▎ 摘　　要

NOVELTY - Method for synthesizing graphene supported photocatalytic nanomaterials, by (i) synthesizing a ceramic substrate from a ceramic material in particulate form, and where the ceramic material is chosen from silica, alumina, zirconia, and metal oxide, (ii) depositing carbonaceous material on the synthesized ceramic substrate to synthesize ceramic substrate coated with carbonaceous material, and where the carbonaceous material is chosen from sugar, asphalt, and tar, (iii) depositing at least one photocatalytic nanomaterial on the ceramic substrate coated with carbonaceous material, and where the photocatalytic nanomaterial is chosen from metal oxides of titanium, tin, and zinc, (iv) transforming a phase of the ceramic substrate coated with carbonaceous photocatalytic nanomaterial in inert atmospheric condition from one phase to another phase, and (v) activating the transformed ceramic substrate coated with carbonaceous photocatalytic nanomaterial, when exposed to a photo energy source. USE - The method is useful for synthesizing graphene supported photocatalytic nanomaterials used in air purification, and for air purification system, indoor air purifier, air conditioner and outdoor industrial applications for promoting photo-oxidation and adsorption of pollutant gases, and removing toxic gaseous pollutants such as nitrogen oxides, sulfur oxides, volatile organic compounds and other organic pollutants present in air. ADVANTAGE - The method provides graphene supported photocatalytic nanomaterials that forms different radicals for providing strong catalytic activity and oxidizing power to sterilize microbes such as bacteria, viruses, yeasts and fungal spores and to decompose volatile organic substances which cause odor. The air purification system eliminates allergens, unpleasant smells and major pollutants in the air, and cleans and improves the indoor air quality. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for an air purification system comprising detachable air filter bed comprising blocks, and bed frame for supporting and holding the blocks, and where each of the blocks is configured to support and hold graphene supported photocatalytic nanomaterials.