• 专利标题:   Preparing blue titania composite wrapped with graphene on which platinum nanoparticles are photo-deposited used in selective photo-conversion process from carbon dioxide to methane and ethane, involves preparing blue titania nanoparticles.
  • 专利号:   KR2021001239-A, KR2219540-B1
  • 发明人:   IN S I, SORCARSAURAV
  • 专利权人:   DAEGU GYEONGBUK INST SCI TECHNOLOGY
  • 国际专利分类:   B01J021/06, B01J021/18, B01J023/42, B01J035/00, B01J037/02, C07C009/04, C07C009/06
  • 专利详细信息:   KR2021001239-A 06 Jan 2021 B01J-035/00 202109 Pages: 22
  • 申请详细信息:   KR2021001239-A KR077038 27 Jun 2019
  • 优先权号:   KR077038

▎ 摘  要

NOVELTY - Preparing blue titania composite wrapped with graphene on which platinum nanoparticles are photo-deposited involves preparing blue titania nanoparticles, preparing blue titania nanoparticles wrapped with graphene by mixing the blue titania nanoparticles with a graphene oxide solution and then subjecting to vacuum heat treatment, preparing a suspension by mixing a solution containing blue titania nanoparticles wrapped with graphene and a platinum (Pt) precursor, performing a photodeposition process of the suspension, filtering, washing, and drying to obtain crystals of blue titania composite wrapped with graphene on which platinum nanoparticles are photo-deposited. USE - Method for preparing blue titania composite wrapped with graphene on which platinum nanoparticles are photo-deposited used as photocatalyst in a selective photo-conversion process from carbon dioxide (CO2) to methane (CH4) and ethane (C2H6) and for removing CO2 (all claimed). ADVANTAGE - The method has excellent conversion rate and high industrial use, excellent stability and high reusability, C2H6 is obtained in high yield, and controls composition in the complex, and adjusts the time of optical conversion. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) a method for selectively converting CO2 and water vapor into CH4 and C2H6, which involves reacting CO2 and water vapor in a gas phase using photo-deposited graphene-wrapped blue titania complex as a photocatalyst, where gas phase reaction is a selective photo-conversion method of CO2; and (2) a method for removing CO2, which involves using the selective light conversion method.