Structural Features and Photoelectrocatalytic Properties of Bismuth-Doped Titanium Oxides Full article
Journal |
Materials Chemistry and Physics
ISSN: 0254-0584 , E-ISSN: 1879-3312 |
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Output data | Year: 2021, Volume: 259, Article number : 123936, Pages count : 11 DOI: 10.1016/j.matchemphys.2020.123936 | ||||||||||
Tags | Sol–gel method Bismuth-doped titanium dioxide films Photoelectrocatalytic oxidation Methanol | ||||||||||
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Abstract:
Film photoanodes were made from nanocrystalline TiO2 doped with Bi3+ ions at a concentration of 0.13–3.09 at. %, and their activity towards photoelectrocatalytic oxidation of methanol was studied. It was shown that with a decrease in the Bi content, the photoelectrocatalytic activity of film electrodes gradually increases both when illuminated with monochromatic light (λ = 461 nm, power of 10 mW cm−2; λ = 369 nm, power of 7.5 mW cm−2) and when illuminated by a solar simulator with a power of 1 sun (100 mW cm−2). It was shown that a decrease in the Bi content leads to a decrease in the recombination losses and to an increase in the efficiency of the transfer of holes involved in the photoelectrocatalytic oxidation of methanol. As a result, doping of TiO2 with an optimal amount of Bi (0.13 at. %) provides selective electrocatalytic oxidation of methanol at the photoanode.
Cite:
Maslov D.A.
, Tsodikov M.V.
, Nikolaev S.A.
, Kriventsov V.V.
, Grinberg V.A.
, Emets V.V.
, Mayorova N.A.
Structural Features and Photoelectrocatalytic Properties of Bismuth-Doped Titanium Oxides
Materials Chemistry and Physics. 2021. V.259. 123936 :1-11. DOI: 10.1016/j.matchemphys.2020.123936 WOS Scopus РИНЦ AN OpenAlex
Structural Features and Photoelectrocatalytic Properties of Bismuth-Doped Titanium Oxides
Materials Chemistry and Physics. 2021. V.259. 123936 :1-11. DOI: 10.1016/j.matchemphys.2020.123936 WOS Scopus РИНЦ AN OpenAlex
Dates:
Submitted: | Jun 15, 2020 |
Accepted: | Oct 13, 2020 |
Published online: | Oct 16, 2020 |
Published print: | Feb 1, 2021 |
Identifiers:
Web of science: | WOS:000615731600002 |
Scopus: | 2-s2.0-85097049015 |
Elibrary: | 45106594 |
Chemical Abstracts: | 2020:2478095 |
OpenAlex: | W3093236048 |