Research Article

Nano Research

, Volume 3, Issue 5, pp 339-349

Open Access This content is freely available online to anyone, anywhere at any time.

Facile synthesis and application of Ag-chemically converted graphene nanocomposite

  • Jianfeng ShenAffiliated withCenter of Special Materials and Technology, Fudan University
  • , Min ShiAffiliated withCenter of Special Materials and Technology, Fudan University
  • , Na LiAffiliated withCenter of Special Materials and Technology, Fudan University
  • , Bo YanAffiliated withCenter of Special Materials and Technology, Fudan University
  • , Hongwei MaAffiliated withCenter of Special Materials and Technology, Fudan University
  • , Yizhe HuAffiliated withCenter of Special Materials and Technology, Fudan University
  • , Mingxin YeAffiliated withCenter of Special Materials and Technology, Fudan University Email author 

Abstract

An in situ chemical synthesis approach has been employed to prepare an Ag-chemically converted graphene (CCG) nanocomposite. The reduction of graphene oxide sheets was accompanied by generation of Ag nanoparticles. The structure and composition of the nanocomposites were confirmed by means of transmission electron microscopy (TEM), atomic force microscopy (AFM) and X-ray diffraction. TEM and AFM results suggest a homogeneous distribution of Ag nanoparticles (5–10 nm in size) on CCG sheets. The intensities of the Raman signals of CCG in such nanocomposites are greatly increased by the attached silver nanoparticles, i.e., there is surface-enhanced Raman scattering activity. In addition, it was found that the antibacterial activity of free Ag nanoparticles is retained in the nanocomposites, which suggests they can be used as graphene-based biomaterials.
http://static-content.springer.com/image/art%3A10.1007%2Fs12274-010-1037-x/MediaObjects/12274_2010_1037_Fig1_HTML.jpg

Keywords

graphene graphene oxide nanoparticle silver