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A. A. Zharikov, A. A. Zezin, E. A. Zezina, A. I. Emel’yanov, G. F. Prozorova
Radiation-chemical reduction of silver ions
in aqueous suspensions of polyvinyltriazole: kinetics of nanoparticle formation
Abstract
The radiation-chemical preparation of
silver nanoparticles is a promising approach for the synthesis of antibacterial
materials in the matrix of non-toxic poly-1-vinyl-1,2,4-triazole. The use of
optical spectroscopy and electron transmission microscopy has shown that
nanoparticles with an average size of 4 nm are formed in irradiated suspensions
of polyvinyltriazole. Analysis of the data of optical spectroscopy revealed
that the formation of nanoparticles occurs in several stages. The formation of clusters
dominates at the first stage; the second stage is characterized by the assembly
of nanoparticles due to the reduction of silver ions on the surface of the
clusters.
Key words: silver nanoparticles,
radiation-induced reduction, metal-polymer nanocomposites, kinetics of
formation of silver nanoparticles.
Copyright (C) Chemistry Dept., Moscow State University, 2002
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