Photooxidising activity of titanium dioxide – nickel heteropolymolybdate and titanium dioxide – molybdenum trioxide coatings under natural lighting conditions

  • Tatsiana V. Sviridova Belarusian State University, 4 Niezaliezhnasci Avenue, Minsk 220030, Belarus
  • Vladimir E. Agabekov Institute of Chemistry of Novel Materials, National Academy of Sciences of Belarus, 36 F. Skaryny Street, Minsk 220141, Belarus
  • Dmitry V. Sviridov Belarusian State University, 4 Niezaliezhnasci Avenue, Minsk 220030, Belarus

Abstract

It has been shown that in passing from bare titania-based thin-film photocatalysts to photacatalytic coatings based on TiO2:NiMo6O24H64– and TiO2/MoO3 composites the oxidation activity exhibits 9-fold increase under conditions of the long-term (10 days) illumination with solar light in the day-to-night cycle. The observed effect results from the increased photocharge separation efficiency at the heterojunctions, as well as from the generation of peroxo species as the oxidation agent capable to ensure the post-exposure oxidation at the photocatalyst surface.

Author Biographies

Tatsiana V. Sviridova, Belarusian State University, 4 Niezaliezhnasci Avenue, Minsk 220030, Belarus

doctor of science (chemistry), full professor; professor at the department of inorganic chemistry, faculty of chemistry

Vladimir E. Agabekov, Institute of Chemistry of Novel Materials, National Academy of Sciences of Belarus, 36 F. Skaryny Street, Minsk 220141, Belarus

doctor of science (chemistry), academician of the National Academy of Sciences of Belarus, full professor; head of the department of physical chemistry of thinfilm materials

Dmitry V. Sviridov, Belarusian State University, 4 Niezaliezhnasci Avenue, Minsk 220030, Belarus

doctor of science (chemistry), corresponding member of the National Academy of Sciences of Belarus, full professor; head of the department of inorganic chemistry, faculty of chemistry

References

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Published
2024-08-15
Keywords: photocatalysts, titanium dioxide, molybdenum trioxide, heteropolymolybdate, solar illumination
Supporting Agencies This work was carried out within the framework of the state programme of scientific research «Photonics and electronics for innovation» (subprogramme «Micro- and nanoelectronics», assignment 3.11.4, state registration No. 20212675).
How to Cite
Sviridova, T. V., Agabekov, V. E., & Sviridov, D. V. (2024). Photooxidising activity of titanium dioxide – nickel heteropolymolybdate and titanium dioxide – molybdenum trioxide coatings under natural lighting conditions. Journal of the Belarusian State University. Chemistry, 2, 46-52. Retrieved from https://journals.bsu.by/index.php/chemistry/article/view/6477
Issue
No 2 (2024): Journal of the Belarusian State University. Chemistry
Section
Original Articles

Copyright (c) 2024 Journal of the Belarusian State University. Chemistry

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