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  • 专利标题:   Preparation of graphene quantum dot/manganese hydroxide composite material involves preparing bright yellow graphene quantum dot solution using e.g. prepared quantum dots and hydrogen peroxide, filtering, precipitating, and filtering.
  • 专利号:   CN108172409-A
  • 发明人:   MO Z, ZHANG H, GUO R, YAN M, FENG H, WANG R, OUYANG M
  • 专利权人:   UNIV NORTHWEST NORMAL
  • 国际专利分类:   H01G011/24, H01G011/30, H01G011/34, H01G011/36
  • 专利详细信息:   CN108172409-A 15 Jun 2018 H01G-011/24 201850 Pages: 8 Chinese
  • 申请详细信息:   CN108172409-A CN10021554 10 Jan 2018
  • 优先权号:   CN10021554

▎ 摘　　要

NOVELTY - Preparation of three-dimensional flower structure graphene quantum dot/manganese hydroxide composite material involves (S1) dispersing the graphene material in concentrated sulfuric acid, magnetically stirring at 0-5 degrees C for 10-15 minutes, adding 8-10 %mass potassium permanganate, heating to 50-55 degrees C, stirring for 12-15 hours, cutting the graphite oxide into graphene quantum dots, pouring the reaction liquid into ice water of 0-5 degrees C, rapidly stirring, cooling to room temperature, dripping 10-30 %mass hydrogen peroxide to obtain a bright yellow graphene quantum dot solution, (S2) filtering the graphene quantum dot solution, collecting the filtrate, adjusting the pH of the solution to 6-8 using sodium hydroxide solution, precipitating a white precipitate in the solution, filtering, washing and drying. USE - Preparation of graphene quantum dot/manganese hydroxide composite material. ADVANTAGE - The prepared composite material has regular flower shape, uniform size, excellent reproducibility and large specific surface area.