Photocatalytic and photovoltaic activities of TiO2 architectures with dominant {001} facets

Liu, Meinan, Wang, Hongxia, Yan, Cheng, & Bell, John M. (2012) Photocatalytic and photovoltaic activities of TiO2 architectures with dominant {001} facets. Materials Focus, 1(2), pp. 136-141.

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Titanium dioxide is one of the most basic materials in our daily life, which has emerged as an excellent photocatalyst material for environmental purification and photovoltaic material working in dye-sensitized solar cell. We present two types of TiO2 architectures which are constructed by plates and sheets, respectively, and both subunits are dominant with {001} facets. The photocatalytic degradation of methyl orange in UV/supported-TiO2 systems was investigated and the mechanism was discussed. The experimental results show that photocatalytic degradation rate is favoured by larger surface area. The sheet structure shows superior photocatalytic activity than plate structure. Moreover, the materials with sheet structure were also used to investigate the photovoltaic property. The power conversion efficiency is 7.57%, indicating the materials with this unique structure are excellent in photocatalytic and photovoltaic applications.

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ID Code: 58400
Item Type: Journal Article
Refereed: Yes
Keywords: titanium dioxide, nanostructures, photocatalyst, dye-sensitized solar cell
DOI: 10.1166/mat.2012.1021
ISSN: 2169-429X
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > MATERIALS ENGINEERING (091200) > Functional Materials (091205)
Australian and New Zealand Standard Research Classification > TECHNOLOGY (100000) > NANOTECHNOLOGY (100700) > Nanomaterials (100708)
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright © 2000-2012 American Scientific Publishers.
Deposited On: 20 Mar 2013 00:35
Last Modified: 23 Mar 2013 04:39

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