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

The photocatalytic activity of TiO 2 nanostructures in the reduction of CO 2 to CH 4 and oxidation of CO to CO 2 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...

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Bibliographic Details
Published in:Theoretical and experimental chemistry 2020, Vol.55 (6), p.407-413
Main Authors: Romanovska, N. I., Ovcharov, M. L., Mishura, A. M., Granchak, V. M., Manoryk, P. A.
Format: Article
Language:English
Subjects:
Carbon dioxide
Carbon oxides
Catalytic activity
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Hydrofluoric acid
Nanostructure
Oxidation
Photocatalysis
Sol-gel processes
Titanium dioxide
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Summary:The photocatalytic activity of TiO 2 nanostructures in the reduction of CO 2 to CH 4 and oxidation of CO to CO 2 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.
ISSN:0040-5760
1573-935X
DOI:10.1007/s11237-020-09633-7