• 专利标题:   Zinc sulfide/graphene oxide/copper sulfide nano photocatalyst, prepared by adding zinc sulfide/graphene oxide nanoparticles and copper salts into ethanol and deionized aqueous solution for ultrasonic dispersion, and stirring.
  • 专利号:   CN108927174-A
  • 发明人:   LIU F, XU M, LI K, ZHOU Y, ZHAO J
  • 专利权人:   UNIV JINAN
  • 国际专利分类:   B01J027/04, B01J035/10, C01B003/04
  • 专利详细信息:   CN108927174-A 04 Dec 2018 B01J-027/04 201904 Pages: 8 Chinese
  • 申请详细信息:   CN108927174-A CN10803077 20 Jul 2018
  • 优先权号:   CN10803077

▎ 摘  要

NOVELTY - Zinc sulfide/graphene oxide (rGO)/copper sulfide (CuS) nano photocatalyst, is claimed. The preparation of nano photocatalyst comprises (i) adding zinc salt, 2-methylimidazole and graphene oxide in a methanol solution, ultrasonically dispersing to GO-ZIF-8 solution, stirring to form a uniform GO-ZIF-8 solution, centrifuging to obtain GO-ZIF-8 nanoparticles, adding sulfur source, placing in a solvent for ultrasonic dispersion to prepare a mixed solution of GO-ZIF-8 and a sulfur source, stirring to form a uniform mixed solution, carrying out vulcanization reaction; naturally cooling, centrifuging, and drying to obtain ZnS/rGO nanoparticles; (ii) adding ZnS/rGO nanoparticles and copper salts into ethanol and deionized aqueous solution for ultrasonic dispersion to prepare ZnS/rGO and copper salt mixed solution, stirring to form a mixed solution of ZnS/rGO and copper salt, and carrying out cation replacement reaction, cooling, centrifuging, and drying. USE - Used as zinc sulfide/graphene oxide/copper sulfide nano photocatalyst. ADVANTAGE - The catalyst has an ultra-large specific surface area, and increases the number of active sites exposed. DETAILED DESCRIPTION - Zinc sulfide/graphene oxide (rGO)/copper sulfide (CuS) nano photocatalyst, is claimed. The preparation of nano photocatalyst comprises (i) adding zinc salt, 2-methylimidazole and graphene oxide in a methanol solution, ultrasonically dispersing to prepare 0.01-1 mol/l GO-ZIF-8 solution, stirring the mixture at a constant temperature to form a uniform GO-ZIF-8 solution, centrifuging the solution to obtain GO-ZIF-8 nanoparticles, adding sulfur source into the GO-ZIF-8 nanoparticles, placing in a solvent for ultrasonic dispersion to prepare a mixed solution of 0.01-1 mol/l of GO-ZIF-8 and a sulfur source, stirring at a constant temperature to form a uniform mixed solution, adding the solution into a hydrothermal reaction kettle, carrying out vulcanization reaction at the specified temperature and time; naturally cooling, centrifuging, and drying to obtain ZnS/rGO nanoparticles; (ii) adding ZnS/rGO nanoparticles and copper salts into ethanol and deionized aqueous solution for ultrasonic dispersion to prepare 0.01-1 mol/l ZnS/rGO and copper salt mixed solution, stirring at a constant temperature to form a mixed solution of ZnS/rGO and copper salt, passing the solution into a hydrothermal reaction vessel, and carrying out cation replacement reaction occurs at a specified temperature and time, naturally cooling, centrifuging, and drying.