Journal
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
Volume 73, Issue 8, Pages 982-986Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jpcs.2012.03.013
Keywords
Inorganic compounds; Metals; Nanostructures; Chemical synthesis; X-ray diffraction
Funding
- Zhejiang Province Key Laboratory of Soldering & Brazing Materials and Technology [1101]
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The graphene oxide(GO) sheets decorated by Ag nanoparticles were prepared using a liquid-liquid two-phase method at the room temperature. The synthesized samples existed in the organic phase and were characterized by X-ray diffraction, transmission electron microscopy, UV-vis spectroscopy and Raman spectra. The results demonstrate that these silver-nanoparticles with diameter of about 10 nm assembled on graphene oxide sheets are flexible and can form stable suspensions in organic phase. Raman signals of graphene oxide sheets are increased by the attached silver nanoparticles, displaying higher surface-enhanced Raman scattering activity. Furthermore, Ag/GO are found to serve as effective catalysts to activate the reduction of 4-nitrophenol (4NP) in the presence of NaBH4. (C) 2012 Elsevier Ltd. All rights reserved.
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