| Ln掺杂BiVO4(Ln=Eu、Gd、Er)光催化剂的制备和活性研究(英文) |
| Synthesis and Activities of Ln-Doped BiVO4 (Ln=Eu, Gd and Er) Photocatalysts |
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| 摘要: 采用水热合成法, 制备出Eu、Gd和Er掺杂的BiVO4复合光催化剂，并采用X射线衍射、X射线光电子谱、扫描电子显微镜和紫外-可见漫反射光谱技术对其进行分析表征。通过可见光下降解水溶液中甲基橙分子来考察其光催化性能，结果显示掺杂的复合光催化剂活性都强于纯的BiVO4，对掺杂复合光催化剂的催化活性增强机理进行了讨论和描述。 |
| 关键词: 光催化 复合光催化剂 可见光 镧离子 |
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| Abstract: The Eu-, Gd- and Er-doped BiVO4 composite photocatalysts were hydrothermal synthesized and characterized by X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy and UV-Vis diffusion reflectance spectra techniques. Compared with the pure BiVO4, all the composite photocatalysts exhibited the enhanced photocatalytic properties for degradation of methyl orange in aqueous solution under visible-light irradiation. The possible mechanism of the improvement in enhanced photocatalytic activity of composites was also discussed and schematized. |
| Keywords: photocatalysis composite photocatalyst visible-light lanthanide ions |
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| 张爱平,张进治.Ln掺杂BiVO4(Ln=Eu、Gd、Er)光催化剂的制备和活性研究(英文)[J].无机化学学报,2009,25(11):2040-2047. |
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