Preparation of Bi_XY_(2-X)O₃ and its Photocatalytic Degradation of Molasses Fermentation Wastewater under Visible-Light Irradiation

Abstract:

A series of Bi_xY_(2-x)O₃ photocatalysts were successfully prepared by a solid-state reaction and were subsequently characterized by powder X-ray diffraction, UV-vis diffuse reflectance spectroscopy, and X-ray photoelectron spectroscopy (XPS). The UV-vis diffuse reflectance spectra revealed that the Bi_xY_(2-x)O₃ samples absorbed light in the visible-light range (400-800 nm). The XPS results indicated that active oxygen species were generated on the Bi_1.8Y_0.2O₃ surface, which displayed a higher photocatalytic activity. When using photocatalytic degradation molasses fermentation wastewater as a model reaction, the Bi_1.8Y_0.2O₃ showed higher photocatalytic activity in comparison to Bi_0.2Y_1.8O₃ under visible-light irradiation.

• Periodical: Advanced Materials Research (Volumes 287-290)
• Pages: 1640-1645
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.287-290.1640
• Online since: July 2011
• Authors: Min Guang Fan, Zu Zeng Qin, Zi Li Liu, Tong Ming Su
• Keywords: Bi_XY_(2-x)O₃, Decolorization, Molasses Fermentation Wastewater, Photocatalyst, Visible Light Irradiation

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