M. V. Korolenko, P. B. Fabrichnyi, Yu. A. Teterin, K. I. Maslakov, M. I. Afanasov, “A particular mechanism of the effect of lone pair E TeIV dopant atoms on visible-light photocatalytic activity of anatase TiO2”, Mendeleev Commun., 34:3 (2024), 440

Communications

A particular mechanism of the effect of lone pair E Te^IV dopant atoms on visible-light photocatalytic activity of anatase TiO₂

M. V. Korolenko^a, P. B. Fabrichnyi^a, Yu. A. Teterin^ab, K. I. Maslakov^a, M. I. Afanasov^a

^a Department of Chemistry, M.V. Lomonosov Moscow State University, Moscow, Russian Federation
^b National Research Centre 'Kurchatov Institute', Moscow, Russian Federation

Аннотация: It was found that small additives of E Te^IV species (< 1 at%) notably enhance the visible-light photocatalytic activity of polycrystalline anatase TiO₂. This effect can tentatively be attributed to the neutralization of the neighboring surface- located oxygen vacancy, acting as a recombination center for photogenerated holes and electrons, by the dopant stereochemically active lone electron pair E.

Ключевые слова: E Te^IV-doped TiO₂, methyl orange, photocatalytic decolorization, surface-located oxygen vacancies, near-surface Te^IV species.

Язык публикации: английский

DOI: 10.1016/j.mencom.2024.04.041

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