Journal
CARBON
Volume 55, Issue -, Pages 245-252Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2012.12.033
Keywords
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Funding
- National Natural Science Foundation of China (NNSFC) [91126014, 11079007, 21073008]
- Research Fund for the Doctoral Program of Higher Education of China [20100001110021]
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A simple and environmentally friendly approach for the preparation of graphene nanosheets decorated with silver nanoparticles (Ag NPs) has been developed by gamma irradiation at room temperature. Graphene oxide (GO) and silver ions are simultaneously reduced by the electrons generated from the radiolysis of solvent. The addition of ionic liquid plays an important role in GO reduction by scavenging oxidative radicals generated during irradiation. Besides, the ionic liquid also benefits the dispersion and size distribution of Ag NPs. Raman signals of the obtained Ag-reduced graphene oxide are significantly enhanced, exhibiting obvious surface-enhanced Raman scattering activity. (C) 2012 Elsevier Ltd. All rights reserved.
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