• 专利标题:   Synthesis of magnetic oxide graphene used for adsorbing heavy metals includes mixing ammonium iron (III) sulfate dodecahydrate and ammonium iron sulfate hexahydrate in ultrapure water, mixing, reacting, standing, washing and freeze-drying.
  • 专利号:   CN107913669-A
  • 发明人:   XING C, SUN M, YUAN J, JIN X, LIU J
  • 专利权人:   UNIV NANJING FINANCE ECONOMICS, NANJING HESHUNCHENG BIOLOGICAL TECHNOLOG, BEIJING MEIZHENG BIOLOGICAL TECHNOLOGY, BEIJING HUAAN MAIKE BIOLOGICAL TECHNOLOG
  • 国际专利分类:   B01J020/20, B01J020/28, B01J020/30, C02F101/20, C02F101/22, C02F009/12
  • 专利详细信息:   CN107913669-A 17 Apr 2018 B01J-020/20 201830 Pages: 9 Chinese
  • 申请详细信息:   CN107913669-A CN11203722 27 Nov 2017
  • 优先权号:   CN11203722

▎ 摘  要

NOVELTY - Synthesis of magnetic oxide graphene comprises mixing ammonium iron (III) sulfate dodecahydrate (NH 4Fe(SO4)2 12H2O) and ammonium iron sulfate hexahydrate (NH4)2Fe(SO4)2 6H2O at 1.8:1 in ultrapure water, adjusting temperature at 70 degrees C, adjusting pH with ammonia solution (NH4OH) to 3, adding ultrasonic graphene oxide in ultrapure water to mixed solution, mixing for 30 minutes, adjusting pH to 10, reacting for 1 hour, standing at room temperature, washing 3 times with ethanol and ultrapure water and freeze-drying for 24 hours. USE - Method of synthesizing magnetic oxide graphene used for adsorbing heavy metals (claimed). ADVANTAGE - The method is simple to operate and capable of quickly removing heavy metal, does not produce secondary pollution. The graphene has large adsorption capacity, fast absorbing speed, simple operation and low price.