Nitrogen modified nanostructured titania: electronic, structural and visible-light photocatalytic properties

被引：56

作者：

Kontos, A. I. ^{[1
]}

Kontos, A. G. ^{[1
,2
]}

Raptis, Y. S. ^{[2
]}

Falaras, P. ^{[1
]}

机构：

[1] NCSR Demokritos, Inst Phys Chem, Athens, Greece

[2] Natl Tech Univ Athens, Dept Phys, Sch Appl Math & Phys Sci, Athens 15780, Greece

来源：

PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS | 2008年 / 2卷 / 02期

关键词：

UV-visible diffuse reflectance-transmittance spectra of nanostructured; N-TiO2; with sketch of its energy band gap;

D O I：

10.1002/pssr.200802006

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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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页码：83 / 85

页数：3

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