期刊
APPLIED SURFACE SCIENCE
卷 256, 期 12, 页码 3740-3745出版社
ELSEVIER
DOI: 10.1016/j.apsusc.2010.01.016
关键词
Photocatalyst; Visible light; Thermal stability; Hydroxyl radical
类别
资金
- National Natural Science Foundation of China [20671032, 20676027, 20971040]
- Program for New Century Excellent Talents in University [NCET-07-0259]
- Key Program Projects of the Province Natural Science Foundation of Heilongjiang Province [ZJG0602-01]
- Scientific Research Fund of Heilongjiang Provincial Education Department [11541283, 11521207]
The N-doped anatase TiO2 photocatalysts were prepared via solvothermal and ethylenediamine reflux treatment, followed by the sequential calcination in air and NH3/N-2 atmosphere. The resulting photocatalysts were characterized by X-ray diffraction, X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy and UV-vis diffuse reflectance spectra. The results revealed that the prepared N-doped anatase TiO2 had characteristics of small crystallite size, large surface area, high crystallinity and visible light response. The prepared N-doped anatase TiO2 photocatalysts showed much higher photocatalytic activity than N-doped Degussa P25 for the degradation of phenol under both ultraviolet and visible light irradiation, owing to more highly oxidizing hydroxyl radical which was the main oxidative species responsible for the degradation of phenol. (C) 2010 Elsevier B.V. All rights reserved.
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