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  • 专利标题:   Titanium oxide base photo-catalytic formaldehyde removing photo-catalyst with carrier separation structure comprises carbon-based material is loaded on surface of the titanium dioxide and there is double electron transfer channel between two, and catalyst is loaded on surface of titanium dioxide.
  • 专利号:   CN116020447-A
  • 发明人:   XIA P, LI X, HUANG D, QIAO L, WANG K
  • 专利权人:   UNIV CHINA ELECTRONIC SCI TECHNOLOGY
  • 国际专利分类:   B01D053/72, B01D053/86, B01J023/42, B01J023/46, B01J023/50, B01J023/52, B01J035/02
  • 专利详细信息:   CN116020447-A 28 Apr 2023 B01J-023/42 202346 Chinese
  • 申请详细信息:   CN116020447-A CN11518615 30 Nov 2022
  • 优先权号:   CN11518615

▎ 摘　　要

NOVELTY - Titanium oxide base photo-catalytic formaldehyde removing photo-catalyst with carrier separation structure comprises a titanium dioxide, a carbon based material and a catalyst. The carbon-based material is loaded on the surface of the titanium dioxide and there is double electron transfer channel between the two. The catalyst is loaded on the surface of the titanium dioxide. The mass ratio of the carbon based material and the titanium dioxide is 0.1-5 wt.%. The mass percentage of the catalyst in the nano composite is 0.001-0.01 wt.%. The photo-catalyst is nano composite. USE - Used as titanium oxide base photo-catalytic formaldehyde removing photo-catalyst with carrier separation structure. ADVANTAGE - The photo-catalyst effectively reduces the composite probability of electron hole pair, provides more reactive sites, exponentially improving formaldehyde processing efficiency and rate and has high activity, non-toxic, low cost, characteristics and good industrial application prospect. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a preparation method of titanium oxide-based photo-catalytic formaldehyde-removing photocatalyst with carrier separation structure, comprising weighing a certain amount of carbon-based material powder, adding a certain volume of organic solvent, ultrasonicating for a certain time under ice bath condition to obtain the organic solution of carbon-based material, dispersing the butyl titanate and hydrolysis inhibitor of a certain volume to the organic solution of the carbon-based material for first time stirring, adding a certain volume of deionized water for second time stirring to form precursor liquid, placing the precursor liquid in the hydrothermal reaction vessel for hydrothermal reaction, cooling, filtering, cleaning, drying to obtain the composite nano material, grinding the composite nano material, adding organic solvent and catalyst solution, ultrasonically dispersing, irradiating for a certain time by ultraviolet light and drying to obtain the photo-catalyst.