Journal
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
Volume 366, Issue 1-3, Pages 197-202Publisher
ELSEVIER
DOI: 10.1016/j.colsurfa.2010.06.005
Keywords
Size-controlled preparation; Ag nanoparticles; Polyol method
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Funding
- National Natural Science Foundation of China [20971089, 50807038]
- National ST Major Project [2009ZX02038]
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In this work, size-controlled silver nanoparticles were prepared with liquid phase chemical method in the ethylene glycol/polyvinylpyrrolidone media. Crystal structure, size, thermal properties and surface chemistry state of the silver nanoparticles were characterized by means of X-ray diffraction (XRD), transmission electron microscopy (TEM), Fourier transform infrared (FT-IR), thermal analysis (TA) and X-ray photoelectron spectroscopy (XPS). The particle size can be conveniently adjusted to 80 nm, 50 nm, 30 nm and 10 nm by controlling the experimental parameters such as the ratio of PVP to AgNO3, and the amount of ammonia added as complexing agent. The as-obtained silver nanoparticles can be dispersed in water, ethanol and other polar solvents, which has attractive applications in electrical and biological fields. Crown Copyright (C) 2010 Published by Elsevier B.V. All rights reserved.
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