The University of Southampton
University of Southampton Institutional Repository

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
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
0926-3373
458-465
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.
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), 458-465. (doi:10.1016/j.apcatb.2010.03.004).

Record type: Article

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.

Text
Study on the photocatalysis of F–S co-doped TiO2 prepared using solvothermal method.pdf - Version of Record
Restricted to Repository staff only
Request a copy

More information

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

Identifiers

Local EPrints ID: 352801
URI: http://eprints.soton.ac.uk/id/eprint/352801
ISSN: 0926-3373
PURE UUID: ee47d6ff-fa4e-4a92-b741-10b1e53d9fd8
ORCID for Zheng Jiang: ORCID iD orcid.org/0000-0002-7972-6175

Catalogue record

Date deposited: 21 May 2013 13:26
Last modified: 12 Nov 2019 01:37

Export record

Altmetrics

Contributors

Author: G.D. Yang
Author: Zheng Jiang ORCID iD
Author: H.H. Shi
Author: M.O. Jones
Author: T.C. Xiao
Author: P.P. Edwards
Author: Z.F. Yan

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×