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Photoformed electron transfer from TiO2 to metal clusters

Paper ID Volume ID Publish Year Pages File Format Full-Text
52016 46862 1995 5 PDF Available
Title
Photoformed electron transfer from TiO2 to metal clusters
Abstract

Detection of mobile charge carriers consistent with a process involving electron transfer from TiO2 to metal particle was measured by EPR and FTIR in the presence of a hole scavenger and under UV irradiation. The main role of the metal (Ag, Au or Cu) was to scavenge the photogenerated electrons leading to an improvement in charge separation with respect to unmodified TiO2 alone. The improvement of charge separation yielded a greater number of holes that were available for surface reaction. A higher rate of reaction on the bleaching of Rhodamine 6G was measured when metal clusters were added to TiO2. Monitoring of solution pH during the degradation of the dye suggest a range of products were formed, whose nature depended both on the presence of metal and on the particular metal present.

Keywords
Photocatalysis; Dye degradation; Titania; Metal clusters
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Photoformed electron transfer from TiO2 to metal clusters
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 9, Issue 10, 10 June 2008, Pages 1991–1995
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