Effect of Erbium Ions Doping on the Properties and Photocatalytic Acitvity of Bi_(12)TiO_(20)

摘要

An erbium ion doped Bi_(12)TiO_(20) was prepared by a simple method. XRD and UV-vis diffuse reflectance spectroscopy (DRS) were used to characterize the prepared photocatalysts. The results indicated that the erbium ion dopant had no influence on the phase of Bi_(12)TiO_(20) and can extend its visible light adsorption spectra. Photocatalytic activities of the prepared samples were evaluated using methyl orange as a model organic compound. The results showed that doping with 0.5 mol% Er~(3+) can significantly improve the photocatalytic performance of Bi_(12)TiO_(20).