4.0 Article

Photoaccumulating film systems based on TiO2/MoO3 and TiO2/MoO3:V2O5 nanoheterostructures

Journal

RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B
Volume 11, Issue 2, Pages 348-353

Publisher

MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S1990793117020257

Keywords

photocatalysis; photogenerated charges; titanium dioxide; molybdenum trioxide; vanadium oxide; electron microscopy; EPR

Funding

  1. Russian Foundation for Basic Research [16-53-00136-Bel-a]
  2. Basic Research Foundation of Belarus [X16P-074]

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The thin-film photocatalysts TiO2/MoO3 and TiO2/MoO3:V2O5 obtained by a combination of sol-gel and sintering techniques were studied using the photooxidation of probing dyes, EPR spectroscopy, X-ray diffraction analysis, and electron microscopy. It was shown that due to charge accumulation caused by UV irradiation, these photocatalysts retain their oxidative activity and ability for self-sterilization in the dark for a long time after irradiation was terminated (up to 5 h for TiO2/MoO3:V2O5).

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