Nitrogen and Lanthanum Co-Doped TiO2 with Enhanced Photocatalytic Activity

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Nitrogen and lanthanum co-doped nanocsystalline titania photocatalysts were prepared by a homogeneous precipitation-hydrothermal process. The photocatalytic activity of the prepared samples on photodegradation of rhodamine B in visible light irradiation was studied. The nitrogen and lanthanum co-doping could greatly improve the photocatalytic activity of titania in visible light irradiation, probablely due to a synergistic effect of co-doping. The nitrogen doping could narrow the band gap of titania and enhance the utilization efficiency of visible light, while the lanthanum doping could accelerate the separation of photo-generated electrons and holes. Furthermore, the lanthanum doping could increase the adsorption of organic pollutants on the surface of photocatalyst.

Info:

Periodical:

Advanced Materials Research (Volumes 179-180)

Edited by:

Garry Zhu

Pages:

192-196

DOI:

10.4028/www.scientific.net/AMR.179-180.192

Citation:

Y. Cong et al., "Nitrogen and Lanthanum Co-Doped TiO2 with Enhanced Photocatalytic Activity", Advanced Materials Research, Vols. 179-180, pp. 192-196, 2011

Online since:

January 2011

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Price:

$35.00

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