Singlet Oxygen 1O2 in Photocatalysis on TiO2. Where Does It Come from?
Alexander V. Dem’yanenko
1, 2
,
Alexandr S Bogomolov
1, 2
,
Nikolay V Dozmorov
1, 2
,
Alexandra Svyatova
1, 2
,
Alexandra P Pyryaeva
1, 2
,
Veniamin G Goldort
3
,
Sergei A. Kochubei
3
,
Alexey V. Baklanov
1, 2
Publication type: Journal Article
Publication date: 2019-01-02
scimago Q1
wos Q3
SJR: 0.914
CiteScore: 6.2
Impact factor: 3.2
ISSN: 19327447, 19327455
Surfaces, Coatings and Films
Electronic, Optical and Magnetic Materials
Physical and Theoretical Chemistry
General Energy
Abstract
Features of the near-infrared phosphorescence of singlet oxygen 1O2 photosensitized by TiO2 in solutions have been investigated. The short-lived phosphorescence of 1O2 with spectral maximum at approximately 1300 nm is observed to follow excitation by pulsed laser radiation at 355 nm of TiO2 suspended in CCl4 and water H2O. The shorter lifetime and spectral shift of this phosphorescence, as compared with phosphorescence of 1O2 sensitized by phenalenone in these solvents, are attributed to the adsorbed state of emitting singlet oxygen. The observed laser pulse energy dependence indicates the two-photon and three-photon nature of this phosphorescence initiation in CCl4 and H2O, respectively. The formation of 1O2 in CCl4 is assumed to be provided by the sequence of one-photon excitation of TiO2, giving rise to superoxide anion O2– and one-photon photodetachment of electron from O2–. The photodetachment of electron from O2– in water H2O is a two-photon process because of higher solvation energy of superoxide a...
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Total citations:
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Citations from 2025:
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(25.38%)
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Dem’yanenko A. V. et al. Singlet Oxygen 1O2 in Photocatalysis on TiO2. Where Does It Come from? // Journal of Physical Chemistry C. 2019. Vol. 123. No. 4. pp. 2175-2181.
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Dem’yanenko A. V., Bogomolov A. S., Dozmorov N. V., Svyatova A., Pyryaeva A. P., Goldort V. G., Kochubei S. A., Baklanov A. V. Singlet Oxygen 1O2 in Photocatalysis on TiO2. Where Does It Come from? // Journal of Physical Chemistry C. 2019. Vol. 123. No. 4. pp. 2175-2181.
Cite this
RIS
Copy
TY - JOUR
DO - 10.1021/acs.jpcc.8b09381
UR - https://doi.org/10.1021/acs.jpcc.8b09381
TI - Singlet Oxygen 1O2 in Photocatalysis on TiO2. Where Does It Come from?
T2 - Journal of Physical Chemistry C
AU - Dem’yanenko, Alexander V.
AU - Bogomolov, Alexandr S
AU - Dozmorov, Nikolay V
AU - Svyatova, Alexandra
AU - Pyryaeva, Alexandra P
AU - Goldort, Veniamin G
AU - Kochubei, Sergei A.
AU - Baklanov, Alexey V.
PY - 2019
DA - 2019/01/02
PB - American Chemical Society (ACS)
SP - 2175-2181
IS - 4
VL - 123
SN - 1932-7447
SN - 1932-7455
ER -
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BibTex (up to 50 authors)
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@article{2019_Dem’yanenko,
author = {Alexander V. Dem’yanenko and Alexandr S Bogomolov and Nikolay V Dozmorov and Alexandra Svyatova and Alexandra P Pyryaeva and Veniamin G Goldort and Sergei A. Kochubei and Alexey V. Baklanov},
title = {Singlet Oxygen 1O2 in Photocatalysis on TiO2. Where Does It Come from?},
journal = {Journal of Physical Chemistry C},
year = {2019},
volume = {123},
publisher = {American Chemical Society (ACS)},
month = {jan},
url = {https://doi.org/10.1021/acs.jpcc.8b09381},
number = {4},
pages = {2175--2181},
doi = {10.1021/acs.jpcc.8b09381}
}
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MLA
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Dem’yanenko, Alexander V., et al. “Singlet Oxygen 1O2 in Photocatalysis on TiO2. Where Does It Come from?.” Journal of Physical Chemistry C, vol. 123, no. 4, Jan. 2019, pp. 2175-2181. https://doi.org/10.1021/acs.jpcc.8b09381.