Abstract
The radiation decomposition of water in a nano-ZrO 2 +nano-SiO 2 +H 2 O system at T = 300 K under the action of gamma-radiation is studied by Fourier-transform IR spectroscopy. It is shown, that water adsorption in Zr and Si nanooxides happens by the molecular and dissociative mechanisms. Intermediate active products of the radiation-heterogeneous water decomposition are registered including Zr and Si hydrides, hydroxide groups. It is shown that changes in the ratio of ZrO 2 and SiO 2 nanopowders result in a decrease of the radiation-catalytic activity comparing to the initial ZrO 2 .
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