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Nanocrystalline pyrochlore AgSbO3: Hydrothermal synthesis, photocatalytic activity and self-stable mechanism study

Paper ID Volume ID Publish Year Pages File Format Full-Text
46124 46430 2012 6 PDF Available
Title
Nanocrystalline pyrochlore AgSbO3: Hydrothermal synthesis, photocatalytic activity and self-stable mechanism study
Abstract

Nanocrystalline pyrochlore AgSbO3 has been successfully synthesized by a facile hydrothermal method and was fully characterized by X-ray diffraction (XRD), UV–vis diffuse reflectance spectroscopy (DRS), scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS). The as-prepared pyrochlore AgSbO3 showed a higher photocatalytic activity in the degradation of typical dye as compared to that prepared by the solid-state reaction. The photocatalytic mechanism of pyrochlore AgSbO3 and its stability during photocatalytic reactions was investigated. It was found that pyrochlore AgSbO3 can maintain its structure stability and photocatalytic activity under visible light irradiations by partial formation of metallic Ag and Ag2O on its surface during the photocatalytic degradation of organic pollutants. This study provides some new insights into the photocatalytic mechanism of Ag-based multi-metal oxide photocatalysts.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights▸ Nanocrystalline pyrochlore AgSbO3 can be synthesized by a facile hydrothermal method. ▸ Hydrothermally prepared AgSbO3 exhibits a superior photocatalytic activity. ▸ Partial formation of metallic Ag and Ag2O on the surface of pyrochlore AgSbO3 during photocatalysis. ▸ Pyrochlore AgSbO3 can maintain its photocatalytic activity during the photocatalytic reaction.

Keywords
Hydrothermal; Pyrochlore AgSbO3; Photocatalytic; Visible light; Self-stable mechanism
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volumes 123–124, 23 July 2012, Pages 78–83
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Don't Miss Today's Special Offer
Price was $35.95
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Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us