| Abstract: |
| Er-doped BiVO4 composite photocatalyst was hydrothermal synthesized and characterized
by X-ray powder diffraction, scanning electron microscopy, energy-dispersive X-ray Spectroscopy, X-ray photoelectron spectroscopy, and UV-Vis diffuse reflectance spectra techniques. The activity of the catalyst was determined by oxidative decomposition of methyl orange in aqueous solution under visible-light irradiation. X-ray photoelectron spectroscopy and energy-dispersive X-ray Spectroscopy analysis revealed that the doped Er existed in the form of Er2O3. It also showed that the Er doping can enhance the visible-light absorption abilities of catalysts and their visible-light-driven photocatalytic activities in comparison with those of pure BiVO4. |
| Key words: Photocatalysis, Composite photocatalyst, Visible-light |
| FundProject: |
|
| Visible-Light Activities of Erbium Doped BiVO4 Photocatalysts |
|
张爱平*, 张进治
|
|
北方工业大学理学院，北京100140
|
| 摘要: |
| 采用水热合成法，制备出Er掺杂的BiVO4复合光催化剂，并采用XRD、SEM、XPS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，结果显示掺杂组份以氧化物Er2O3形式存在于的复合光催化剂中；且掺杂复合光催化剂的可见光吸收和催化活性都比纯BiVO4有所增强． |
| 关键词: 光催化，复合光催化剂，可见光 |
| DOI：10.1088/1674-0068/23/01/73-78 |
| 分类号: |
