Nonstoichiometric titanium dioxide nanotubes with enhanced catalytical activity under visible light

A. A. Valeeva; E. A. Kozlova; A. S. Vokhmintsev; R. V. Kamalov; I. B. Dorosheva; A. A. Saraev; I. A. Weinstein; A. A. Rempel

doi:10.1038/s41598-018-28045-1

Nonstoichiometric titanium dioxide nanotubes with enhanced catalytical activity under visible light

Applied Physics 2019-06-17 v1 Mesoscale and Nanoscale Physics Materials Science Chemical Physics

Authors: A. A. Valeeva , E. A. Kozlova , A. S. Vokhmintsev , R. V. Kamalov , I. B. Dorosheva , A. A. Saraev , I. A. Weinstein , A. A. Rempel

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Abstract

The catalytic activity of nanotubular titanium dioxide films formed during the oxidation of acetone to carbon dioxide under the action of visible light with a wavelength of 450 nm was found to be approximately 2 times higher compared to standard titanium dioxide (Degussa P25). The nanotubular films were grown by the anodization of titanium foil using an original technique. Diffuse reflectance spectra of the films are attributed to enhanced activity in the visible spectrum by the nonstoichiometry of titanium dioxide near the interface between the nanotubular film and the titanium foil substrate.

Keywords

titanium dioxide nanotubes nonstoichiometry visible light catalysis anodization diffuse reflectance

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@article{arxiv.1906.06235,
  title  = {Nonstoichiometric titanium dioxide nanotubes with enhanced catalytical activity under visible light},
  author = {A. A. Valeeva and E. A. Kozlova and A. S. Vokhmintsev and R. V. Kamalov and I. B. Dorosheva and A. A. Saraev and I. A. Weinstein and A. A. Rempel},
  journal= {arXiv preprint arXiv:1906.06235},
  year   = {2019}
}

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10 pages, 9 figures, 1 Table, 43 references

Nonstoichiometric titanium dioxide nanotubes with enhanced catalytical activity under visible light

Abstract

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