Journal
JOURNAL OF ENVIRONMENTAL MANAGEMENT
Volume 98, Issue -, Pages 107-111Publisher
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jenvman.2011.12.029
Keywords
Visible light; Sunlight; N-doped TiO2; Photocatalysis
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Funding
- Brazilian agency, CAPES
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The N-doped TiO2 photocatalyst was prepared by calcination of a hydrolysis product composed of titanium (IV) isopropoxide with ammonia as the precipitator. X-ray diffraction, surface area. XPS and UV-vis spectra analyses showed a nanosized anatase structure and the appearance of a new absorption band in the visible region caused by nitrogen doping. The degradation of Direct Black 38 dye on the nitrogen-doped TiO2 photocatalyst was investigated under visible light and sunlight irradiation. The N-doped anatase TiO2 demonstrated excellent photocatalytic activity under visible light. Under sunlight irradiation, the N-doped sample showed slightly higher activity than that of the non-doped sample. (C) 2012 Elsevier Ltd. All rights reserved.
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