Home / Publications / Application of the 121Sb Mossbauer spectroscopy to characterizing titania-based photocatalysts modified by lone pair cations

Application of the 121Sb Mossbauer spectroscopy to characterizing titania-based photocatalysts modified by lone pair cations

Mikhail Vladimirovich Korolenko 1
Mikhail Vladimirovich Korolenko
, 
Pavel Borisovich Fabrichnyi 1
Pavel Borisovich Fabrichnyi
, 
1 Department of Chemistry, M.V. Lomonosov Moscow State University, Moscow, Russian Federation
10.1016/j.mencom.2023.10.042
Published 2023-10-18
Communication , Volume 33, Issue 6, 864-865
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Korolenko M. V., Fabrichnyi P. B., Afanasov M. I. Application of the 121Sb Mossbauer spectroscopy to characterizing titania-based photocatalysts modified by lone pair cations // Mendeleev Communications. 2023. Vol. 33. No. 6. pp. 864-865.
GOST all authors (up to 50) Copy
Korolenko M. V., Fabrichnyi P. B., Afanasov M. I. Application of the 121Sb Mossbauer spectroscopy to characterizing titania-based photocatalysts modified by lone pair cations // Mendeleev Communications. 2023. Vol. 33. No. 6. pp. 864-865.
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TY - JOUR
DO - 10.1016/j.mencom.2023.10.042
UR - https://mendcomm.colab.ws/publications/10.1016/j.mencom.2023.10.042
TI - Application of the 121Sb Mossbauer spectroscopy to characterizing titania-based photocatalysts modified by lone pair cations
T2 - Mendeleev Communications
AU - Korolenko, Mikhail Vladimirovich
AU - Fabrichnyi, Pavel Borisovich
AU - Afanasov, Mikhail Ivanovich
PY - 2023
DA - 2023/10/18
PB - Mendeleev Communications
SP - 864-865
IS - 6
VL - 33
ER -
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@article{2023_Korolenko,
author = {Mikhail Vladimirovich Korolenko and Pavel Borisovich Fabrichnyi and Mikhail Ivanovich Afanasov},
title = {Application of the 121Sb Mossbauer spectroscopy to characterizing titania-based photocatalysts modified by lone pair cations},
journal = {Mendeleev Communications},
year = {2023},
volume = {33},
publisher = {Mendeleev Communications},
month = {Oct},
url = {https://mendcomm.colab.ws/publications/10.1016/j.mencom.2023.10.042},
number = {6},
pages = {864--865},
doi = {10.1016/j.mencom.2023.10.042}
}
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Korolenko, Mikhail Vladimirovich, et al. “Application of the 121Sb Mossbauer spectroscopy to characterizing titania-based photocatalysts modified by lone pair cations.” Mendeleev Communications, vol. 33, no. 6, Oct. 2023, pp. 864-865. https://mendcomm.colab.ws/publications/10.1016/j.mencom.2023.10.042.

Keywords

121Sb Mössbauer spectra
photocatalytic bleaching.
SbIII electronic lone pair
SbIII-doped anatase TiO2
visible light photocatalytic activity

Abstract

A study of the reaction of white light photocatalytic bleaching of methyl orange solutions in the presence of antimony- modified anatase TiO2 catalysts has revealed a nearly 5-fold increase in the reaction rate constant k in comparison with k0 for the undoped reference TiO2. Analysis of 121Sb spectra has shown that this effect is due to the stereoactive electronic lone pair E of Sbiii species. Our experiments have thus confirmed the mechanism of its positive modifying action theoretically predicted earlier for the isoelectronic lone pair dopant SnII.

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