M. L. Ovcharov, P. I. Glukhova, A. M. Mishura, V. M. Granchak
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Photocatalytic Activity of SrTiO3 and BaTiO3 Nanostructures, Formed by the Sol-Gel Method, in the Process of Nitrogen Dioxide Decomposition
Strontium and barium titanates with a perovskite structure have been obtained using a sol–gel method. It is shown that these materials are characterized by high values of a band gap (3.1 and 3.2 eV for SrTiO3 and BaTiO3, respectively). Morphological characteristics of the obtained titanates are considered, the presence of micrometer aggregates, consisting of nanosticks (diameter of 20-40 nm, length of 100-200 nm) and nanocrystals with size of 20-70 nm, is established. The photocatalytic properties of the samples in the process of NO2 decomposition to N2 and O2 under UV irradiation (λ = 365 nm) are studied, a possible mechanism of nitrogen dioxide conversion is discussed.
期刊介绍：
Theoretical and Experimental Chemistry is a journal for the rapid publication of research communications and reviews on modern problems of physical chemistry such as:
a) physicochemical bases, principles, and methods for creation of novel processes, compounds, and materials;
b) physicochemical principles of chemical process control, influence of external physical forces on chemical reactions;
c) physical nanochemistry, nanostructures and nanomaterials, functional nanomaterials, size-dependent properties of materials.
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