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Teoret. i eksperim. khimiya. 2004. Vol.40 No. 3. p. 145-149

Photochemical Synthesis and Spectral Properties
of ZnO/Cu and ZnO/Ag/Cu Nanoheterostructures


V. V. Shvalagin, A. L. Stroyuk, S. Ya. Kuchmy

L. V. Pysarzhevsky Institute of Physical Chemistry, National Academy of Sciences of Ukraine
31 Prosp. Nauky, 03028 Kyiv, Ukraine. E-mail: stroyuk@inphyschem-nas.kiev.ua, photochem@ukr.net

Photoreduction of Cu2+ on the surface of ZnO nanoparticles and ZnO/Ag nanostructures was investigated and spectral properties of ZnO/Cu and ZnO/Ag/Cu composites as a function of reaction conditions was studied. It was shown that ZnO/Ag nanoparticles posess increased photocatalytic activity in the process of Cu2+ ions reduction as compared with individual ZnO nanoparticles.

Key words photochemical synthesis, metal semiconductor composites, nanoparticles of zinc oxide, copper, silver.