Synthesis of nanosized silver colloids by microwave dielectric heating

The Institute of Science Department of Chemistry 400 032 Mumbai India
Journal of Chemical Sciences (Impact Factor: 1.3). 117(1):53-60. DOI: 10.1007/BF02704361

ABSTRACT Silver nanosized crystallites have been synthesized in aqueous and polyols viz., ethylene glycol and glycerol, using a microwave
technique. Dispersions of colloidal silver have been prepared by the reduction of silver nitrate both in the presence and
absence of stabilizer poly(vinylpyrolidone) (PVP). It was observed that PVP is capable of complexing and stabilizing Ag nanoparticles
formed through the reduction of Ag+ ions in water and ethylene glycol. In the case of ethylene glycol, it has been shown that the use of PVP leads to particles
with a high degree of stability. The colloids are stable in glycerol for months even in the absence of stabilizer.

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May 21, 2014