Journal
ACTA MATERIALIA
Volume 60, Issue 12, Pages 4753-4758Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.actamat.2012.05.037
Keywords
Alginate; Applications; Hydrothermal synthesis; Morphology; Silver nanoparticles
Funding
- Priority Academic Program Development of Jiangsu Higher Education Institutions
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Various methods have been reported for the synthesis of Ag nanoparticles (NPs) by reduction of AgNO3 with a chemical reducing agent. However, many of them pose potential environmental and biological risks. Herein, we demonstrate for the first time that Ag NPs can be synthesized using sodium alginate (NaAlg) as both reducing and stabilizing agents by a simple and effective green hydrothermal strategy. By controlling the temperature and time of reaction, Ag nanospheres and nanoplates can be fabricated. Moreover, the application of an Ag NPs-NttAlg thin film in surface-enhanced Raman scattering of rhodamine 60 is demonstrated. The catalytic efficiency of the as-prepared Ag NPs embedded in calcium alginate beads is evaluated for reaction of 4-nitrophenol reduction to 4-aminophenol in the presence of NaBH4. (C) 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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