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| Ln掺杂BiVO4(Ln=Eu、Gd、Er)光催化剂的制备和活性研究 | |
| 引用本文： | 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[J]. 无机化学学报, 2009, 25(11): 2040-2047 |
| 作者姓名： | 张爱平 张进治 |
| 作者单位： | 北方工业大学理学院,北京,100144 |
| 基金项目： | 北京市教委面上科技项目 |
| 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 |
Synthesis and Activities of Ln-Doped BiVO4 (Ln=Eu, Gd and Er) Photocatalysts |
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| ZHANG Ai-Ping and ZHANG Jin-Zhi. Synthesis and Activities of Ln-Doped BiVO4 (Ln=Eu, Gd and Er) Photocatalysts[J]. Chinese Journal of Inorganic Chemistry, 2009, 25(11): 2040-2047 | |
| Authors: | ZHANG Ai-Ping and ZHANG Jin-Zhi |
| Affiliation: | College of Sciences, North China University of Technology, Beijing 100144 and College of Sciences, North China University of Technology, Beijing 100144 |
| 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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