Study on the photocatalysis of F-S co-doped TiO2 prepared using solvothermal method
Study on the photocatalysis of F-S co-doped TiO2 prepared using solvothermal method
Fluorine–sulfur (F–S) co-doped TiO2 materials have been prepared using low-temperature solvothermal method, and tested for catalytic activity by the visible light photocatalytic degradation of the Methylene Blue. For comparison, the mono-elemental doped samples, e.g., S- and F-doped TiO2 have also been prepared and tested under the same conditions. The characterization results showed that F–S co-doped TiO2 has a higher photocatalytic activity than that of mono-doped F- and S-doped samples under visible light irradiation. It is believed that the co-doping gives rise to a localized state in the band gap of the oxide and creates active surface oxygen vacancies, both which are responsible for visible light absorption and the promotion of electrons from the localized states to the conduction band. Characterization by electron paramagnetic resonance revealed the presence of a superoxide radical (O2?) which may be mainly responsible for photodegradation of Methylene Blue under visible light.
solvothermal method, f–s co-doped TiO2, photocatalyst, visible light response, mechanism study, f-doped TiO2, s-doped TiO2
458-465
Yang, G.D.
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Jiang, Zheng
bcf19e78-f5c3-48e6-802b-fe77bd12deab
Shi, H.H.
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Jones, M.O.
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Xiao, T.C.
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Edwards, P.P.
638346ed-063e-4da0-9fdb-70d3dcb16e1e
Yan, Z.F.
64a195a5-deb5-4941-8cb2-f82545d571fe
2010
Yang, G.D.
c4b9fda2-8d84-44eb-b35f-2d8ad9e2d555
Jiang, Zheng
bcf19e78-f5c3-48e6-802b-fe77bd12deab
Shi, H.H.
c25ae3b0-37da-4a74-9816-326264ee3a69
Jones, M.O.
8ca656ec-ae63-482d-b20a-144cab012648
Xiao, T.C.
59a66d2d-56bd-4fb8-9e8c-f463b59b11a2
Edwards, P.P.
638346ed-063e-4da0-9fdb-70d3dcb16e1e
Yan, Z.F.
64a195a5-deb5-4941-8cb2-f82545d571fe
Yang, G.D., Jiang, Zheng, Shi, H.H., Jones, M.O., Xiao, T.C., Edwards, P.P. and Yan, Z.F.
(2010)
Study on the photocatalysis of F-S co-doped TiO2 prepared using solvothermal method.
Applied Catalysis B Environmental, 96 (3-4), .
(doi:10.1016/j.apcatb.2010.03.004).
Abstract
Fluorine–sulfur (F–S) co-doped TiO2 materials have been prepared using low-temperature solvothermal method, and tested for catalytic activity by the visible light photocatalytic degradation of the Methylene Blue. For comparison, the mono-elemental doped samples, e.g., S- and F-doped TiO2 have also been prepared and tested under the same conditions. The characterization results showed that F–S co-doped TiO2 has a higher photocatalytic activity than that of mono-doped F- and S-doped samples under visible light irradiation. It is believed that the co-doping gives rise to a localized state in the band gap of the oxide and creates active surface oxygen vacancies, both which are responsible for visible light absorption and the promotion of electrons from the localized states to the conduction band. Characterization by electron paramagnetic resonance revealed the presence of a superoxide radical (O2?) which may be mainly responsible for photodegradation of Methylene Blue under visible light.
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Published date: 2010
Keywords:
solvothermal method, f–s co-doped TiO2, photocatalyst, visible light response, mechanism study, f-doped TiO2, s-doped TiO2
Organisations:
Faculty of Engineering and the Environment
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Local EPrints ID: 352801
URI: http://eprints.soton.ac.uk/id/eprint/352801
ISSN: 0926-3373
PURE UUID: ee47d6ff-fa4e-4a92-b741-10b1e53d9fd8
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Date deposited: 21 May 2013 13:26
Last modified: 15 Mar 2024 03:47
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Contributors
Author:
G.D. Yang
Author:
H.H. Shi
Author:
M.O. Jones
Author:
T.C. Xiao
Author:
P.P. Edwards
Author:
Z.F. Yan
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