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Visible-Light Activities of Erbium Doped BiVO4 Photocatalysts
Ai-ping Zhang*,Jin-zhi Zhang
Author NameAffiliationE-mail
Ai-ping Zhang* College of Sciences, North China University of Technology, Beijing 100144, China ncutalex@126.com 
Jin-zhi Zhang College of Sciences, North China University of Technology, Beijing 100144, China  
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
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: