• 专利标题:   Photo degrading organic dye comprises e.g. preparing silver sulfide quantum dot stock solution, mixing ultrasonically with graphene oxide powder, heating in oxygen-free environment, agitating and subjecting to photo catalytic degradation.
  • 专利号:   CN108816247-A
  • 发明人:   ZHOU M, WU Q
  • 专利权人:   UNIV TSINGHUA
  • 国际专利分类:   B01J027/04, C02F001/30, C01G005/00, C01B032/198, C02F101/30
  • 专利详细信息:   CN108816247-A 16 Nov 2018 B01J-027/04 201910 Pages: 11 Chinese
  • 申请详细信息:   CN108816247-A CN10679289 27 Jun 2018
  • 优先权号:   CN10679289

▎ 摘  要

NOVELTY - Photo degrading organic dye comprises (i) preparing silver sulfide quantum dot stock solution, mixing ultrasonically with the graphene oxide powder to obtain a silver sulfide quantum dot-graphene oxide mixed solution; and (ii) heating in an oxygen-free environment to obtain a graphene hydrogel containing silver sulfide quantum dots, adding into wastewater containing organic dyes, agitating in dark, and subjecting finally to photo catalytic degradation under light irradiation. USE - The method is useful for photo degrading organic dye. ADVANTAGE - The method: utilizes influence of quantum size effect of silver sulfide quantum dots for photo catalytic degradation of organic dyes and mild reaction conditions; has good catalytic effect and rapid degradation rate; and is easy to control.