Preparation of Porous F-WO3TiO2 Films with Visible-Light Photocatalytic Activity by Microarc Oxidation
Joint Authors
Yeh, Chung-Wei
Wu, Kee-Rong
Hsu, Chuan-Jen
Hung, Chung-Hsuang
Chang, Hao-Cheng
Source
International Journal of Photoenergy
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-11-17
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Porous F-WO3/TiO2 (mTiO2) films are prepared on titanium sheet substrates using microarc oxidation (MAO) technique.
The X-ray diffraction patterns show that visible-light (Vis) enabling mTiO2 films with a very high content of anatase TiO2 and high loading of WO3 are successfully synthesized at a low applied voltage of 300 V using electrolyte contenting NaF and Na2WO4 without subsequent heat treatment.
The cross-sectional transmission electron microscopy micrograph reveals that the mTiO2 films feature porous networks connected by many micron pores.
The diffused reflection spectrum displays broad absorbance across the UV-Vis regions and a significant red shift in the band gap energy (∼2.23 eV) for the mTiO2 film.
Owing to the high specific surface area from the porous microstructure, the mTiO2 film shows a 61% and 50% rate increase in the photocatalytic dye degradation, as compared with the N,C-codoped TiO2 films under UV and Vis irradiation, respectively.
American Psychological Association (APA)
Yeh, Chung-Wei& Wu, Kee-Rong& Hung, Chung-Hsuang& Chang, Hao-Cheng& Hsu, Chuan-Jen. 2011. Preparation of Porous F-WO3TiO2 Films with Visible-Light Photocatalytic Activity by Microarc Oxidation. International Journal of Photoenergy،Vol. 2012, no. 2012, pp.1-9.
https://search.emarefa.net/detail/BIM-460342
Modern Language Association (MLA)
Yeh, Chung-Wei…[et al.]. Preparation of Porous F-WO3TiO2 Films with Visible-Light Photocatalytic Activity by Microarc Oxidation. International Journal of Photoenergy No. 2012 (2012), pp.1-9.
https://search.emarefa.net/detail/BIM-460342
American Medical Association (AMA)
Yeh, Chung-Wei& Wu, Kee-Rong& Hung, Chung-Hsuang& Chang, Hao-Cheng& Hsu, Chuan-Jen. Preparation of Porous F-WO3TiO2 Films with Visible-Light Photocatalytic Activity by Microarc Oxidation. International Journal of Photoenergy. 2011. Vol. 2012, no. 2012, pp.1-9.
https://search.emarefa.net/detail/BIM-460342
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-460342