Author： Uryupina O. Vysotskii V. Matveev V. Gusel'nikova A. Roldughin V.
Publisher： MAIK Nauka/Interperiodica
ISSN： 1061-933X
Source： Colloid Journal, Vol.73, Iss.4, 2011-08, pp. : 551-556
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Abstract
It is shown that gold nanoparticles can be produced using cellulose ethers, methylhydroxyethyl cellulose, and carboxymethyl cellulose as reducing agents that also play the role of nanoparticle stabilizers. Depending on the synthesis conditions, nanoparticle sizes vary in the range of 20-100 nm. The application of carboxymethyl cellulose as a stabilizer may give rise to the formation of a bimodal ensemble of nanoparticles with sizes of 4-5 and 30-40 nm. The differences in the mechanisms for the reduction and stabilization of gold nanoparticles in the presence of these cellulose derivatives are established by IR spectroscopy. The obtained colloidal dispersions of gold nanoparticles remain stable for a long time.
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