Article Title

Facile synthesis and application of Ag-chemically converted graphene nanocomposite

Authors

Jianfeng Shen, Center of Special Materials and Technology, Fudan University, Shanghai 200433, China
Min Shi, Center of Special Materials and Technology, Fudan University, Shanghai 200433, China
Na Li, Center of Special Materials and Technology, Fudan University, Shanghai 200433, China
Bo Yan, Center of Special Materials and Technology, Fudan University, Shanghai 200433, China
Hongwei Ma, Center of Special Materials and Technology, Fudan University, Shanghai 200433, China
Yizhe Hu, Center of Special Materials and Technology, Fudan University, Shanghai 200433, China
Mingxin Ye, Center of Special Materials and Technology, Fudan University, Shanghai 200433, China

Keywords

graphene, graphene oxide, nanoparticle, silver

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.

Graphical Abstract

DOI

https://doi.org/10.1007/s12274-010-1037-x

Publisher

Tsinghua University Press

Recommended Citation

Jianfeng Shen,Min Shi,Na Li,Bo Yan,Hongwei Ma,Yizhe Hu,Mingxin Ye, Facile synthesis and application of Ag-chemically converted graphene nanocomposite. NanoRes.2010, 3: 339–349