• 专利标题:   Preparing graphene/active carbon composite porous microsphere used in air purification and water treatment, involves mixing water soluble carbohydrates into water to obtain oxidized composite graphene aqueous solution.
  • 专利号:   CN107081127-A
  • 发明人:   GAO C, CHEN C, HAN Y
  • 专利权人:   HANGZHOU GAOXI TECHNOLOGY CO LTD
  • 国际专利分类:   B01D053/02, B01J020/20, B01J020/28, B01J020/30, B01J021/18, B01J032/00, B01J035/10, C02F001/28
  • 专利详细信息:   CN107081127-A 22 Aug 2017 B01J-020/20 201772 Pages: 6 Chinese
  • 申请详细信息:   CN107081127-A CN10244041 14 Apr 2017
  • 优先权号:   CN10244041

▎ 摘  要

NOVELTY - Preparing graphene/active carbon composite porous microsphere involves mixing the water soluble carbohydrates into water to prepare solution, uniformly mixing to obtain composite aqueous solution and oxidized graphene aqueous solution. Potassium hydroxide is added to composite aqueous solution for adjusting pH to more than 10 and the solution is stirred continuously to obtain the graphene oxide coated carbohydrate dispersion which is spray dried to obtain composite powder which is carbonized, activated and washed to obtain graphene/porous active carbon composite microspheres. USE - Method for preparing graphene/active carbon composite porous microsphere (claimed) used in air purification, water treatment and microwave absorbing material. ADVANTAGE - The method enables to prepare graphene/active carbon composite porous microsphere which has high specific surface area and hole volume and low density.