• 文献标题:   Determination of Ag+ ions by a graphene oxide based dual-output nanosensor with high selectivity
  • 文献类型:   Article
  • 作  者:   CHENG RM, LI LL, OU SJ, BU YX, GE CC, DAI LM, XUE Y
  • 作者关键词:  
  • 出版物名称:   RSC ADVANCES
  • ISSN:  
  • 通讯作者地址:   Wenzhou Med Univ
  • 被引频次:   3
  • DOI:   10.1039/c6ra00048g
  • 出版年:   2016

▎ 摘  要

A new highly selective chemosensor for Ag+ ions was designed and synthesized by covalently introducing well-known fluorophore 1,8-diaminonaphthalene (DAN) onto graphene oxide (GO) sheets. The resultant fluorescent sensor 1,8-diaminonaphthalene-graphene (GAP) was quenched due to the photoinduced electron transfer (PET) mechanism, and the intensity of second-order scattering (SOS) was enhanced upon addition of Ag+ ions. The fluorescent probe GAP exhibits no or a slight response to many other metal ions.