Photocatalytic properties of BiVO{sub 4} prepared by the co-precipitation method: Degradation of rhodamine B and possible reaction mechanisms under visible irradiation
- Facultad de Ingenieria Mecanica y Electrica, Universidad Autonoma de Nuevo Leon, Ciudad Universitaria, C.P. 66451, San Nicolas de los Garza, N.L. (Mexico)
Bismuth vanadate (BiVO{sub 4}) was synthesized by the co-precipitation method at 200 {sup o}C. The photocatalytic activity of the oxide was tested for the photodegradation of rhodamine B under visible light irradiation. The analysis of the total organic carbon showed that the mineralization of rhodamine B over a BiVO{sub 4} photocatalyst ({approx}40% after 100 h of irradiation) is feasible. In the same way, a gas chromatography analysis coupled with mass spectroscopy revealed the existence of organic intermediates during the photodegradation process such as ethylbenzene, o-xylene, m-xylene, and phthalic anhydride. The modification of variables such as dispersion pH, amount of dissolved O{sub 2}, and irradiation source was studied in order to know the details about the photodegradation mechanism.
- OSTI ID:
- 22202543
- Journal Information:
- Materials Research Bulletin, Journal Name: Materials Research Bulletin Journal Issue: 2 Vol. 45; ISSN MRBUAC; ISSN 0025-5408
- Country of Publication:
- United States
- Language:
- English
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