• 专利标题:   Graphene/metal oxide composite material for absorbing heavy metal ion in water comprises a divalent and trivalent metal nitrate hydrate, alkaline compound, and graphene oxide.
  • 专利号:   CN103316635-A
  • 发明人:   WANG Y, YUAN X
  • 专利权人:   UNIV CHONGQING JIAOTONG
  • 国际专利分类:   B01J020/20, B01J020/30, C02F001/28
  • 专利详细信息:   CN103316635-A 25 Sep 2013 B01J-020/20 201382 Pages: 6 Chinese
  • 申请详细信息:   CN103316635-A CN10277218 03 Jul 2013
  • 优先权号:   CN10277218

▎ 摘  要

NOVELTY - A graphene/metal oxide composite material comprises a divalent and trivalent metal nitrate hydrate, alkaline compound, and graphene oxide. USE - For absorbing heavy metal ion (e.g. Cr(VI)) in water (claimed). ADVANTAGE - The composite material has Cr(VI) absorption rate of 170 mg/composite material; is cost-effective; is prepared by simple method. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for the preparation of composite material involving: mixing the divalent and trivalent metal nitrate hydrate and alkaline compound solution with graphene oxide suspension, followed by hydro-thermal treating, and calcining at 480-520 degrees C for 4-6 hours.