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Preparation of PbYO composite photocatalysts for degradation of methyl orange under visible-light irradiation

Paper ID Volume ID Publish Year Pages File Format Full-Text
50088 46779 2012 5 PDF Available
Title
Preparation of PbYO composite photocatalysts for degradation of methyl orange under visible-light irradiation
Abstract

The PbYO composites were prepared through a precipitation method and used for the degradation of methyl orange under visible-light irradiation. The PbYO complex photocatalysts were characterized by X-ray diffraction (XRD), UV–vis diffuse reflectance spectroscopy, N2 adsorption–desorption, and terephthalic acid photoluminescence (TA-PL) probing technique. The results indicated that the photodegradation of methyl orange was significantly enhanced in the presence of PbYO complex oxide when compared with BiYO3. The calcination temperature was found to have a significant effect on the photocatalytic activity of PbYO composites. Specifically, PbYO calcined at 800 °C had a considerably larger surface area, lower reflectance intensity, higher formation rate of free ·OH radicals and showed higher photocatalytic activity.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► PbYO Composite photocatalyst has been prepared. ► Methyl orange was photo-degraded by PbYO catalyst under visible-light irradiation. ► PbYO Composite samples absorbed light in visible-light range. ► The formation rate of ·OH on the 800 °C PbYO is much higher than other samples. ► The photocatalytic activity of PbYO was significantly higher than BiYO3.

Keywords
Lead yttrium oxide; Visible-light irradiation; Photocatalytic degradation; Methyl orange
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Preparation of PbYO composite photocatalysts for degradation of methyl orange under visible-light irradiation
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 18, 10 February 2012, Pages 93–97
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
Online Support
Any Questions? feel free to contact us