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Photocatalytic Activity of Tio2 Nanostructures Formed by Sol–Gel Method in the Presence of Hydrofluoric Acid in the Transformation of Carbon Oxides

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Theoretical and Experimental Chemistry Aims and scope

The photocatalytic activity of TiO2 nanostructures in the reduction of CO2 to CH4 and oxidation of CO to CO2 was studied. It depends significantly on the concentration of hydrofluoric acid in the sol–gel system and on the conditions of post-synthesis treatment leading to the formation of oxygen vacancies. The conditions for production of samples giving maximum efficiency for these processes were determined.

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Acknowledgement

The authors express their gratitude to V. O. Golub (Institute of Magnetism, National Academy of Sciences of Ukraine) for assistance in the investigation of the samples by EPR and to V. I. Sapsai and S. N. Shcherbakov (M. G. Kholodnyi Institute of Botanics) for investigation of the samples by scanning and transmission spectroscopy.

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Authors and Affiliations

  1. L. V. Pysarzhevsky Institute of Physical Chemistry, National Academy of Sciences of Ukraine, Nauky Ave., 31, Kyiv, 03028, Ukraine

    N. I. Romanovska, M. L. Ovcharov, A. M. Mishura, V. M. Granchak & P. A. Manoryk

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  1. N. I. Romanovska
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  2. M. L. Ovcharov
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  3. A. M. Mishura
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  4. V. M. Granchak
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  5. P. A. Manoryk
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Corresponding author

Correspondence to N. I. Romanovska.

Additional information

Translated from Teoreticheskaya i Éksperimental’naya Khimiya, Vol. 55, No. 6, pp. 373-380, November-December, 2019.

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Romanovska, N.I., Ovcharov, M.L., Mishura, A.M. et al. Photocatalytic Activity of Tio2 Nanostructures Formed by Sol–Gel Method in the Presence of Hydrofluoric Acid in the Transformation of Carbon Oxides. Theor Exp Chem 55, 407–413 (2020). https://doi.org/10.1007/s11237-020-09633-7

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  • DOI: https://doi.org/10.1007/s11237-020-09633-7

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