Photocatalytic Degradation of Water-Soluble Dyes by LaCoO3
来源期刊：JOURNAL OF RARE EARTHS2003年第4期
论文作者：傅希贤 桑丽霞 白树林 王俊珍 杨秋华
Key words：catalytic chemistry; water-soluble dye; perovskite-type LaCoO3; photocatalytic degradation; rare earths;
Abstract: Perovskite-type oxides LaCoO3 was prepared by citrate method in granula of 20～30 nm. Using a fluorescent Hg lamp or sunlight as irradiator, the degradation experiments of various water-soluble dyes were carried out in the suspension system of LaCoO3. The results show that the perovskite-type oxide LaCoO3 has good photocatalytic activity. With the study of X-ray photoelectron spectroscopy and photoacoustic spectra, its photocatalytic activity is mainly related with the factors such as the d-electron structure of ion Co3+, Co-O binding energy and adsorbed oxygen on the surface etc.
傅希贤1，桑丽霞1，白树林1，王俊珍1，杨秋华1
(1.School of Science, Tianjin University, Tianjin 300072, China)
Abstract:Perovskite-type oxides LaCoO3 was prepared by citrate method in granula of 20～30 nm. Using a fluorescent Hg lamp or sunlight as irradiator, the degradation experiments of various water-soluble dyes were carried out in the suspension system of LaCoO3. The results show that the perovskite-type oxide LaCoO3 has good photocatalytic activity. With the study of X-ray photoelectron spectroscopy and photoacoustic spectra, its photocatalytic activity is mainly related with the factors such as the d-electron structure of ion Co3+, Co-O binding energy and adsorbed oxygen on the surface etc.
Key words:catalytic chemistry; water-soluble dye; perovskite-type LaCoO3; photocatalytic degradation; rare earths;
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