Degradation of Direct Black 38 dye under visible light and sunlight irradiation by N-doped anatase TIO2 as photocatalyst.
J Environ Manage
; 98: 107-11, 2012 May 15.
Article
em En
| MEDLINE
| ID: mdl-22257572
ABSTRACT
The N-doped TiO(2) 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 TiO(2) photocatalyst was investigated under visible light and sunlight irradiation. The N-doped anatase TiO(2) 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.
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1
Base de dados:
MEDLINE
Assunto principal:
Fotólise
/
Compostos Azo
/
Titânio
Idioma:
En
Revista:
J Environ Manage
Ano de publicação:
2012
Tipo de documento:
Article
País de afiliação:
Brasil