期刊
PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS
卷 2, 期 2, 页码 83-85出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/pssr.200802006
关键词
UV-visible diffuse reflectance-transmittance spectra of nanostructured; N-TiO2; with sketch of its energy band gap
Nitrogen doped titanium dioxide (N-TiO2) powders were synthesized as the hydrolysis condensation product of tetrabutyl titanate reaction with urea. Following adequate thermal treatment, nitrogen was introduced at interstitial lattice sites, mostly near the surface of the nanocrystals. These defects, detectable by Raman spectroscopy, induce a shift of the energy band gap to the visible range (at about 2.3 eV) that justifies significant visible light photocatalytic activity towards degradation of methyl orange (MO) pollutant. (c) 2008 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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