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Visible-light-active nitrogen-containing TiO2 photocatalysts prepared by spray pyrolysis

Visible-light-active nitrogen-containing TiO2 photocatalysts prepared by spray pyrolysis Yellow-colored N-containing TiO2 (NTO) powders with a porous surface were synthesized by spray pyrolysis. Their nitrogen contents depended on pyrolysis temperature and ranged from 300 to 5700 ppm. Ultraviolet-visible spectra indicated that the NTO powders could absorb not only ultraviolet light like pure TiO2 powder, but also part of the visible light spectrum (λ < 550 nm). Acetaldehyde decomposition was used as a probe reaction to evaluate the photocatalysis of these sprayed powders. The photocatalytic activity of the sprayed NTO powder was superior to that of a pure TiO2 sample under visible light irradiation. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Visible-light-active nitrogen-containing TiO2 photocatalysts prepared by spray pyrolysis

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Publisher
Springer Journals
Copyright
Copyright © 2005 by VSP
Subject
Chemistry; Inorganic Chemistry; Physical Chemistry; Catalysis
ISSN
0922-6168
eISSN
1568-5675
DOI
10.1163/1568567053956653
Publisher site
See Article on Publisher Site

Abstract

Yellow-colored N-containing TiO2 (NTO) powders with a porous surface were synthesized by spray pyrolysis. Their nitrogen contents depended on pyrolysis temperature and ranged from 300 to 5700 ppm. Ultraviolet-visible spectra indicated that the NTO powders could absorb not only ultraviolet light like pure TiO2 powder, but also part of the visible light spectrum (λ < 550 nm). Acetaldehyde decomposition was used as a probe reaction to evaluate the photocatalysis of these sprayed powders. The photocatalytic activity of the sprayed NTO powder was superior to that of a pure TiO2 sample under visible light irradiation.

Journal

Research on Chemical Intermediates – Springer Journals

Published: Jun 1, 2005

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