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Synthesis of BiYO3 for degradation of organic compounds under visible-light irradiation

Paper ID Volume ID Publish Year Pages File Format Full-Text
52696 46881 2009 5 PDF Available
Title
Synthesis of BiYO3 for degradation of organic compounds under visible-light irradiation
Abstract

BiYO3 photocatalysts were successfully prepared by a precipitation method and by a solid-state reaction. The products were characterized by X-ray diffraction (XRD), UV–vis diffuse reflectance spectroscopy, high-resolution transmission electron microscopy (HRTEM) and surface area and porosimetry analyzer. UV–vis diffuse reflectance spectra revealed that the crystalline BiYO3 generated via a solid-state reaction had a band gap of 2.64 eV, whereas the product generated by precipitation method had a band gap of 2.84 eV. Both products exhibited absorption in the visible-light range of 400–700 nm. XRD and transmission electron microscopy (TEM) measurements showed that these both samples of BiYO3 were highly crystalline. These results indicated that BiYO3 might perform well as a photocatalyst in the visible-light region. By using photocatalytic degradation of methyl orange as a model system, it was shown that BiYO3 generated by the solid-state reaction showed greater photocatalytic activity than either BiYO3 generated by the precipitation methods or BiVO4 when exposed to visible-light irradiation.

Keywords
Bismuth yttrium oxide; Visible-light irradiation; Methyl orange; Photocatalytic degradation
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 10, Issue 12, 25 June 2009, Pages 1604–1608
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
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Any Questions? feel free to contact us