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Photocatalysis of nano-perovskites

Published online by Cambridge University Press:  31 January 2011

Yen-Hua Chen  and
Yu-De Chen
Yen-Hua Chen
Affiliation:
[email protected], National Cheng-Kung University, Department of Earth Sciences, Taiwan, Taiwan, Province of China
Yu-De Chen
Affiliation:
[email protected], National Cheng-Kung University, Department of Earth Sciences, Taiwan, Taiwan, Province of China
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Abstract

In this study, we can successfully synthesize nano-perovskites, including nano-CaTiO3, nano-SrTiO3, and nano-BaTiO3, by a co-precipitation method. The band gap of the nano-perovskites are 3.65 eV, 3.44 eV, and 3.35 eV, for nano-CaTiO3, nano-SrTiO3, and nano- BaTiO3, respectively. The ability of photocatalysis for nano-BaTiO3 is a little bit better than other nano-perovskites. It is also observed the photocatalytic activity increases with the increasing amount of photocatalysts. Moreover, the ability of photocatalysis using a higher energy UV-light is not promoted with the low energy UV-light.

Keywords

photochemicalnanoscaleenvironmentally protective
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1171: Symposium S – Materials in Photocatalysis and Photoelectrochemistry for Environmental Applications and H2 Generation , 2009 , 1171-S07-14
Copyright
Copyright © Materials Research Society 2009

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