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Photocatalytic and photoelectrochemical properties of in situ carbon hybridized BiPO4 films

Paper ID Volume ID Publish Year Pages File Format Full-Text
40821 45867 2012 6 PDF Available
Title
Photocatalytic and photoelectrochemical properties of in situ carbon hybridized BiPO4 films
Abstract

In situ hybridization of carbon with BiPO4 films were performed through calcination of amorphous complex precursor films on the Ti substrate under various temperatures. The BiPO4 crystallites were in situ grown into BiPO4 particles on the surface of the Ti substrate. The formed BiPO4 particles in situ hybridized with the residual carbon from precursor calcination to form carbon hybridized BiPO4 films. The extent of hybridization depended on the calcination temperatures. The photocatalytic activities of carbon hybridized BiPO4 films under different calcination temperatures were estimated through photocatalytic degradation of methylene blue. The results indicated that the film prepared at 400 °C presented the highest photocatalytic activity, which was about 1.5 times than that of the film at 550 °C. This phenomenon could be attributed to the higher carbon hybridization extent, higher transfer efficiency of photo-induced electrons between carbon and BiPO4 crystalline nanoparticles in films, and corresponding separation efficiency of photo-induced electrons and holes. The electronic interaction was also systematically investigated by the photoelectrochemical measurements.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (141 K)Download as PowerPoint slideHighlights► Carbon hybridized BiPO4 film was prepared with 30 nm of BiPO4 nanoparticle. ► Photocatalytic activity was enhanced by inhibiting charge carriers recombination. ► The inhibition was ascribed to higher electrons transfer efficiency by carbon.

Keywords
BiPO4; Carbon; Hybridization; Photo-induced carriers separation
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Photocatalytic and photoelectrochemical properties of in situ carbon hybridized BiPO4 films
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volumes 435–436, 5 September 2012, Pages 93–98
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