• 专利标题:   Synthesizing graphene supported photocatalytic nanomaterials used in e.g. air purification, by synthesizing ceramic substrate, depositing carbon material, depositing photocatalytic nanomaterial on substrate and activating transformed phase.
  • 专利号:   WO2020012501-A1
  • 发明人:   VIVEK SINGHAL A, KUMAR SHARMA A, PAUL K, SHAJAR ALI IMAM S
  • 专利权人:   LOG 9 MATERIALS SCI PRIVATE LTD
  • 国际专利分类:   B01J021/06, C01B032/182, C01B032/184
  • 专利详细信息:   WO2020012501-A1 16 Jan 2020 C01B-032/182 202008 Pages: 36 English
  • 申请详细信息:   WO2020012501-A1 WOIN050506 09 Jul 2019
  • 优先权号:   IN11000975

▎ 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.