• 专利标题:   Preparing graphene-lignin two-dimensional composite material used in adsorption and separation of metal ions and purification of proteins, involves dissolving graphene and dopamine in tris(carboxymethyl)aminomethane-hydrochloric acid buffer.
  • 专利号:   CN112175403-A, CN112175403-B
  • 发明人:   ZHUANG W, QIU J, ZHU C, YING H, LONG H, TANG C, LI M, YANG P, SHEN T, TAN Z
  • 专利权人:   UNIV NANJING TECHNOLOGY
  • 国际专利分类:   B01J020/24, C02F001/28, C07K001/22, C08H007/00, C08K003/04, C08K009/04, C08L097/00
  • 专利详细信息:   CN112175403-A 05 Jan 2021 C08L-097/00 202121 Pages: 13 Chinese
  • 申请详细信息:   CN112175403-A CN11058005 30 Sep 2020
  • 优先权号:   CN11058005

▎ 摘  要

NOVELTY - Preparing graphene-lignin two-dimensional composite material involves dissolving graphene and dopamine in tris(carboxymethyl)aminomethane-hydrochloric acid buffer, stirring and centrifuging to obtain dopamine-modified graphene, adding hydroxyl surface-modified lignin to the aqueous solution of 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride and stirring to react, adding aqueous solution of N-hydroxysuccinimide, stirring, centrifuging, and drying. The dopamine-modified graphene and the surface activated lignin are dispersed in tris (carboxymethyl) aminomethane-hydrochloric acid buffer, stirred and centrifuged to obtain graphene-lignin two-dimensional composite material. USE - Method for preparing graphene-lignin two-dimensional composite material used in the adsorption and separation of metal ions, separation and purification of proteins and polypeptides containing His-Tags groups (all claimed).