This article is cited in 6 papers

Communications

¹¹⁹Sn Mössbauer spectroscopic insight into the effect of surface-located tin dopant cations on the visible-light photocatalytic activity of anatase TiO₂

M. V. Korolenko, P. B. Fabrichnyi, M. I. Afanasov

Department of Chemistry, M.V. Lomonosov Moscow State University, Moscow, Russian Federation

Abstract: The presence of Sn⁴⁺ dopant ions on the surfaces of titania crystallites results in a nearly fourfold increase in the rate constant of a white-light photocatalytic bleaching reaction of methyl orange. Thus, the positive effect of a Sn^II electronic lone pair, which was theoretically predicted in 2013 by Iwaszuk and Nolan for a SnO-nanocluster modified anatase model, can be experimentally revealed using catalyst powders containing surface-located oxidized Sn⁴⁺ species.

Keywords: Sn-doped TiO₂, photocatalytic decolorization, methyl orange, ¹¹⁹Sn Mössbauer spectroscopy, Sn^u- electronic lone Pair, stereochemical activity.

Language: English

DOI: 10.1016/j.mencom.2023.01.042

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