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Nitrogen-Doped TiO2 Photocatalyst Prepared by Mechanochemical Method : Doping Mechanisms and Visible Photoactivity of Pollutant Degradation
Joint Authors
Yu, Han-Qing
Tang, Yu-Chao
Tang, Li-Hua
Huang, Xian-Huai
Source
International Journal of Photoenergy
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-09-20
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
Nitrogen-doped TiO2 (N/TiO2) photocatalysts were prepared using a mechanochemical method with raw amorphous TiO2 as precursors and various nitrogenous compounds doses (NH4F, NH4HCO3, NH3·H2O, NH4COOCH3, and CH4N2O).
The photocatalysts were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), thermal gravimetric-differential thermal analysis (TG-DTA), and UV-Vis diffuse reflection spectra (UV-Vis-DRS).
Their photocatalytic activities were evaluated with the degradation of p-nitrophenol and methyl orange under UV or sunlight irradiation.
The catalysts had a strong visible light absorption which correspond to doped nitrogen and consequent oxygen deficient.
The results of photocatalytic activity showed the visible light adsorption mechanisms, as the doped nitrogen species gave rise to a mid-gap level slightly above the top of the (O-2p) valence band, but not from the mixed band gap of the N-2p and O-2p electronic levels.
American Psychological Association (APA)
Tang, Yu-Chao& Huang, Xian-Huai& Yu, Han-Qing& Tang, Li-Hua. 2011. Nitrogen-Doped TiO2 Photocatalyst Prepared by Mechanochemical Method : Doping Mechanisms and Visible Photoactivity of Pollutant Degradation. International Journal of Photoenergy،Vol. 2012, no. 2012, pp.1-10.
https://search.emarefa.net/detail/BIM-511616
Modern Language Association (MLA)
Tang, Yu-Chao…[et al.]. Nitrogen-Doped TiO2 Photocatalyst Prepared by Mechanochemical Method : Doping Mechanisms and Visible Photoactivity of Pollutant Degradation. International Journal of Photoenergy No. 2012 (2012), pp.1-10.
https://search.emarefa.net/detail/BIM-511616
American Medical Association (AMA)
Tang, Yu-Chao& Huang, Xian-Huai& Yu, Han-Qing& Tang, Li-Hua. Nitrogen-Doped TiO2 Photocatalyst Prepared by Mechanochemical Method : Doping Mechanisms and Visible Photoactivity of Pollutant Degradation. International Journal of Photoenergy. 2011. Vol. 2012, no. 2012, pp.1-10.
https://search.emarefa.net/detail/BIM-511616
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-511616