• 专利标题:   Preparing photocatalyst for selective photoconversion of carbon dioxide comprises preparing mixed solution by mixing solvent, unsaturated fatty acid, amine compound, titania precursor and graphene oxide solution and calcining mixed solution.
  • 专利号:   KR2021063119-A
  • 发明人:   HWANG Y J, IN S I, HO L J, SORCARSAURAV
  • 专利权人:   DAEGU GYEONGBUK INST SCI TECHNOLOGY
  • 国际专利分类:   B01J021/06, B01J021/18, B01J035/00, B01J037/04, B01J037/06, B01J037/08, C07C001/02
  • 专利详细信息:   KR2021063119-A 01 Jun 2021 B01J-035/00 202150 Pages: 20
  • 申请详细信息:   KR2021063119-A KR151630 22 Nov 2019
  • 优先权号:   KR151630

▎ 摘  要

NOVELTY - Preparing photocatalyst for selective photoconversion of carbon dioxide (CO2) comprises (i) preparing mixed solution by mixing a solvent, unsaturated fatty acid having 16-20C, amine-based compound of (R1NHR2) (I), a titania precursor, and a graphene oxide solution; (ii) calcining the mixed solution to obtain a calcined product; (iii) washing the calcined material; and (iv) obtaining a complex by performing a drying process, where composite includes graphene and nitrogen (N) doped titania (TiO2) quantum dots combined to form an integrated composite. USE - The method is useful for preparing photocatalyst for selective photoconversion of CO2. ADVANTAGE - The photocatalyst has excellent conversion rate, has high yield, can control the selectivity during light conversion of light and has excellent long-term stability. DESCRIPTION OF DRAWING(S) - The drawing shows TEM measurement image of the quantum dot (a) and the composite of example 3 (b-d).