• 专利标题:   Hydrogel bead used for cesium adsorption, comprises prussian blue and graphene oxide complexes, where graphene oxide is bonded to polyvinyl alcohol by hydrogen bonding.
  • 专利号:   KR2017083202-A, KR1782241-B1
  • 发明人:   SUNG L D, JANG J
  • 专利权人:   UNIV KYUNGPOOK NAT IND ACAD COOP FOUND
  • 国际专利分类:   B01J020/02, B01J020/20, B01J020/28, B01J020/30
  • 专利详细信息:   KR2017083202-A 18 Jul 2017 B01J-020/28 201757 Pages: 11
  • 申请详细信息:   KR2017083202-A KR002347 08 Jan 2016
  • 优先权号:   KR002347

▎ 摘  要

NOVELTY - Hydrogel bead comprises prussian blue and graphene oxide complexes, where the graphene oxide is bonded to polyvinyl alcohol by hydrogen bonding. The polyvinyl alcohol is cross-linked by boron. USE - Hydrogel bead used for cesium adsorption. ADVANTAGE - The hydrogel bead has a wide specific surface area and excellent radioactive cesium adsorption characteristics, and thus efficiently removes radioactive cesium in the radioactive liquid waste. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing hydrogel beads for cesium adsorption, which involves: (A) mixing prussian blue and graphene oxide to prepare complex; (B) mixing the complex and the polyvinyl alcohol-alginate solution to prepare a mixed solution; and (C) injecting the mixed solution into a calcium saturated boric acid solution to form the hydrogel bead. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the hydrogel bead for cesium adsorption.