• 专利标题:   Preparing composite ternary heterojunction photocatalyst, comprises e.g. preparing solution of graphene oxide and graphitic carbon nitride, and reacting with zinc acetate, indium(III) acetate, silver nitrate, L-cysteine and thioacetamide.
  • 专利号:   CN111957334-A
  • 发明人:   GAO Y, XU Z, QIAN K, DING F, SUN Y, JI L, GU R, CHEN Z, WU X, YU T
  • 专利权人:   UNIV SHENYANG CHEM TECHNOLOGY CO LTD
  • 国际专利分类:   B01J027/24, B01J037/10, B01J037/34, C01B003/04
  • 专利详细信息:   CN111957334-A 20 Nov 2020 B01J-027/24 202000 Pages: 6 Chinese
  • 申请详细信息:   CN111957334-A CN10686917 16 Jul 2020
  • 优先权号:   CN10686917

▎ 摘  要

NOVELTY - Preparing composite ternary heterojunction photocatalyst, comprises (i) preparing graphene oxide by modified Hummer's method and preparing graphitic carbon nitride nanosheets by thermal polymerization method, and then dispersing graphene oxide and graphitic carbon nitride in distilled water ultrasonically, (ii) adding zinc acetate, indium(III) acetate, silver nitrate and L-cysteine, then adding thioacetamide, transferring the solution to a PTFE-lined stainless steel reactor, carrying out hydrothermal reaction, separating the obtained precipitate by centrifugation, washing with deionized water multiple times, and drying to obtain ternary heterojunction silver-zinc indium sulfide/reduced graphene oxide/graphitic carbon nitride photocatalyst. USE - The ternary heterojunction photocatalyst is useful for photocatalytic hydrogen production in clean energy production and energy conversion field. ADVANTAGE - The ternary heterojunction photocatalyst has excellent visible light photocatalytic ability to split water to produce hydrogen. DETAILED DESCRIPTION - Preparing composite ternary heterojunction photocatalyst, comprises (i) preparing graphene oxide (GO) by modified Hummer's method and preparing graphitic carbon nitride (g-C3N4) nanosheets by thermal polymerization method, and then dispersing GO and g-C3N4 in distilled water ultrasonically, (ii) adding zinc acetate, indium(III) acetate, silver nitrate and L-cysteine, then adding thioacetamide, transferring the solution to a PTFE-lined stainless steel reactor, carrying out hydrothermal reaction, separating the obtained precipitate by centrifugation, washing with deionized water multiple times, and drying to obtain ternary heterojunction silver-zinc indium sulfide/reduced graphene oxide/graphitic carbon nitride photocatalyst of formula (Ag:ZnIn2S4/RGO/g-C3N4).