Abstract
In this paper, Bi2O3 and Fe3+-doped Bi2O3 photocatalysts with different molar ratio of Bi /Fe (nBi:nFe =100:1,2,3,4) was prepared by paralled flaw co-precipitation method. The prepared photocatalysts were characterized by Brunauer-Emmet Teller (BET) method, X-ray diffraction( XRD) and UV-Vis diffuse reflectance spectroscopy. The results show that 3% Fe3+-Bi2O3 prepared has the highest BET surface area, pore volume, the smallest pore size and the particle average size. 3% Fe3+-Bi2O3 exhibits the best photocatalytic activity. The results of further experiments show that the specific surface area, UV-Vis diffuse reflectance all play an important role in promotion of photocatalytic activity of Bi2O3 nanostructure.
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