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CLC number: O612.4
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Received: 2000-02-26
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PHOTOCATALYTIC ACTIVITY OF LANTHANUM DOPING TiO2
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YUE Lin-hai, SHUI Miao, ZHU Wang-liang, XU Zhu-de. PHOTOCATALYTIC ACTIVITY OF LANTHANUM DOPING TiO2[J]. Journal of Zhejiang University Science A, 2001, 2(3): 271-274.
@article{title="PHOTOCATALYTIC ACTIVITY OF LANTHANUM DOPING TiO2",
author="YUE Lin-hai, SHUI Miao, ZHU Wang-liang, XU Zhu-de",
journal="Journal of Zhejiang University Science A",
volume="2",
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pages="271-274",
year="2001",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.2001.0271"
}
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%J Journal of Zhejiang University SCIENCE A
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%I Zhejiang University Press & Springer
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T1 - PHOTOCATALYTIC ACTIVITY OF LANTHANUM DOPING TiO2
A1 - YUE Lin-hai
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A1 - XU Zhu-de
J0 - Journal of Zhejiang University Science A
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Y1 - 2001
PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.2001.0271
Abstract: The photocatalytic activity of the mixtures of tiO2 with the rare earth oxide La was investigated. The study on the effect of the rare earth oxide content, calcinating temperature and calcinating time on the performance of the mixture revealed that sample treated under higher temperature and longer time had higher photoactivity than pure tiO2. The experimental results of polycrystalline X-ray diffraction showed that the extent of the lattice expansion varied with the variation of calcinating temperature or time. It is suggested that this might be due to the variation of La content diffused into the tiO2 lattice. The La in the lattice may inhibit the recombinatin of photogenerated electron-hole pairs and thus enhance the photoactivity.
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