• 专利标题:   Tannic acid-modified graphene/gelatin porous composite material useful as organic dye adsorbing material, obtained by mixing tannic acid, graphene oxide and de-ionized water, adding gelatin, adding crosslinking agent and freeze-drying.
  • 专利号:   CN109078616-A
  • 发明人:   LIU C, LIU H, XIONG T, LI Y, ZHOU Z, JING B, JIAN F
  • 专利权人:   UNIV HENAN SCI TECHNOLOGY
  • 国际专利分类:   B01J020/24, B01J020/28, C02F001/28, C02F101/30
  • 专利详细信息:   CN109078616-A 25 Dec 2018 B01J-020/24 201911 Pages: 9 Chinese
  • 申请详细信息:   CN109078616-A CN11075031 14 Sep 2018
  • 优先权号:   CN11075031

▎ 摘  要

NOVELTY - Tannic acid-modified graphene/gelatin porous composite material, obtained by (i) mixing tannic acid, graphene oxide and de-ionized water, reacting at 80-90 degrees C and separating the solid and liquid to obtain tannic acid-modified graphene; (ii) mixing tannic acid-modified graphene, gelatin and de-ionized water to obtain tannic acid-modified graphene/gelatin mixture; (iii) dropping the tannic acid-modified graphene/gelatin mixture into ice water to obtain tannic acid-modified graphene/gelatin microspheres; (iv) crosslinking the tannic acid-modified graphene/gelatin microspheres with crosslinking agent to obtain a tannic acid-modified graphene/gelatin cross-linked gel microsphere and freez-drying, is claimed. USE - The material is useful as dye adsorbing material, preferably organic dye adsorbing material (claimed). DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing tannic acid-modified graphene/gelatin porous composite material, comprising the steps as mentioned above.