• 专利标题:   Preparing graphene quantum dots with blue fluorescent characteristics involves dispersing residual starch in sweet potato residue in water to form suspension, transferring suspension into reaction kettle to hydrolyze starch.
  • 专利号:   CN111117607-A
  • 发明人:   JI Y, DENG Y, CHEN F, REN F, WANG Z
  • 专利权人:   UNIV SHANGHAI SCI TECHNOLOGY
  • 国际专利分类:   B82Y020/00, B82Y040/00, C01B032/184, C09K011/65, G01N021/64
  • 专利详细信息:   CN111117607-A 08 May 2020 C09K-011/65 202046 Pages: 12 Chinese
  • 申请详细信息:   CN111117607-A CN11218623 03 Dec 2019
  • 优先权号:   CN11218623

▎ 摘  要

NOVELTY - Preparing graphene quantum dots with blue fluorescent characteristics involves dispersing residual starch in sweet potato residue in water to form a suspension, transferring suspension into the reaction kettle to hydrolyze the starch to obtain glucose, maltose and aldehydes. The glucose is hydrolyzed under hydrothermal conditions to obtain C=C bonds, and GQDs are obtained under hydrothermal conditions. USE - Method for preparing graphene quantum dots with blue fluorescent characteristics used in the field of heavy metal ion detection in water. ADVANTAGE - The method enables to prepare graphene quantum dots with blue fluorescent characteristics, which has good hydrophilicity, and selectively quench Hg2+ in aqueous solution and applied in the fields of biological imaging, optical sensing and energy storage conversion. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a graphene quantum dot.