• 专利标题:   Preparation of nano-silver-modified reduced graphene oxide hybrid structure involves adding acetone solution to solution of nano-silver-modified reduced graphene oxide hybrid structure, separating solid, washing and drying.
  • 专利号:   CN108115151-A
  • 发明人:   LIN T, ZHU M, HE P
  • 专利权人:   HARBIN INST TECHNOLOGY
  • 国际专利分类:   B22F001/02, B22F009/24, B82Y030/00, C01B032/184
  • 专利详细信息:   CN108115151-A 05 Jun 2018 B22F-009/24 201853 Pages: 14 Chinese
  • 申请详细信息:   CN108115151-A CN11421294 25 Dec 2017
  • 优先权号:   CN11421294

▎ 摘  要

NOVELTY - Preparation of nano-silver-modified reduced graphene oxide hybrid structure involves mixing silver nitrate dispersion and sodium citrate dispersion in the volume ratio of 1:0.6-1, obtaining silver source dispersion, mixing obtained graphene oxide dispersion with silver source dispersion, obtaining graphene oxide/silver source dispersion, dispersing sodium borohydride in deionized water, obtaining sodium borohydride dispersion, dripping sodium borohydride dispersion into graphene oxide/silver source dispersion at the rate of 0.5-15 mL/minute, reacting at 15-60 degrees C at the rate of 300-1200 rpm for 1-6 hours, obtaining deionized water solution of nano-silver-modified reduced graphene oxide hybrid structure, adding acetone solution to deionized water solution of nano-silver-modified reduced graphene oxide hybrid structure, maintaining for 10-72 hours, separating solid and liquid, washing the separated solid, and drying. USE - Preparation of nano-silver-modified reduced graphene oxide hybrid structure. ADVANTAGE - The method efficiently provides nano-silver-modified reduced graphene oxide hybrid structure with high yield and productivity, by simple method with reduced consumption of energy. DETAILED DESCRIPTION - Graphene oxide dispersion is obtained by dispersing graphene oxide in deionized water solution. Sodium citrate dispersion is obtained by dispersing sodium citrate in deionized water. The silver nitrate dispersion is obtained by dispersing silver nitrate in deionized water. The concentration of sodium borohydride dispersion is 0.1-0.5 g/L. The volume ratio of sodium borohydride dispersion with respect to graphene oxide/silver source dispersion is 1:5-10. The volume ratio of acetone solution with respect to deionized aqueous solution of nano-silver-modified reduced graphene oxide hybrid structure is 0.5-2:1. The concentration of graphene oxide dispersion is 0.05-0.75 g/L. The concentration of sodium citrate dispersion is 5-20 g/L. The concentration of silver nitrate dispersion is 0.5-3 g/L. The mass ratio of graphene oxide to silver nitrate in mixed solution of graphene oxide dispersion liquid and silver source dispersion liquid is 5-30:1.