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.
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Translated from Teoretychna ta Eksperymentalna Khimiya, Vol. 59, No. 4, pp. 240-246, July-August, 2023.
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Ovcharov, M.L., Glukhova, P.I., Mishura, A.M. et al. Photocatalytic Activity of SrTiO3 and BaTiO3 Nanostructures, Formed by the Sol-Gel Method, in the Process of Nitrogen Dioxide Decomposition. Theor Exp Chem 59, 276–284 (2023). https://doi.org/10.1007/s11237-024-09786-9
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DOI: https://doi.org/10.1007/s11237-024-09786-9