Journal
CERAMICS INTERNATIONAL
Volume 39, Issue 4, Pages 3685-3689Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2012.10.200
Keywords
Ba-doped LaCoO3; Photocatalysis; Degradation; Malachite green
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Funding
- Natural Science Foundation of China [51002020, 51272035, 51272037]
- International Cooperation MOST-JST Program Fund [2010DFA61410]
- Project of International Cooperation of the Ministry of Science and Technology of China [2011DFA50530]
- Sichuan International Science & Technology Cooperation and Communication Research Program [2011HH0002]
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In this study, a series of photocatalyst La1-xBaxCoO3 (x=0, 0.1, 0.3, 0.5, 0.7) powders were successfully prepared using the sol gel method. The crystal structure and band gap of La1-xBaxCoO3 were characterized by X-ray diffraction and Ultraviolet visible diffuse reflection spectroscopy for photocatalysis investigation. The results showed that the Ba-doped LaCoO3 exhibited obvious absorption characteristics in visible light regions. In addition, the effect of La1-xBaxCoO3 on the photocatalytic degradation of malachite green under different light sources was also investigated. Ba-doped LaCoO3 showed excellent visible-light sensitive photocatalytic activities and a maximum photocatalytic degradation of malachite green could be achieved with a degradation degree of 97% by La0.7Ba0.3CoO3 in visible light for 60 min. (C) 2012 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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