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AgBr@Ag/TiO2 core–shell composite with excellent visible light photocatalytic activity and hydrothermal stability

Paper ID Volume ID Publish Year Pages File Format Full-Text
50498 46797 2013 5 PDF Available
Title
AgBr@Ag/TiO2 core–shell composite with excellent visible light photocatalytic activity and hydrothermal stability
Abstract

•AgBr@Ag/TiO2 core-shell photocatalysts were fabricated by a facile multistep route.•AgBr@Ag/TiO2 core-shell photocatalysts exhibited high hydrothermal stability.•AgBr@Ag/TiO2 showed excellent visible light activity for the degradation of azo dyes.•Both of Ag nanoparticles and AgBr respond to visible light.•Core-shell structure can effectively separate the photogenerated electrons and holes.

AgBr@Ag/TiO2 core–shell photocatalysts were fabricated by a facile green route. TiO2 was uniformly coated on the surface of cubic AgBr, making AgBr@Ag/TiO2 core–shell photocatalyst show excellent hydrothermal stability. Beneficial from that Ag nanoparticles and AgBr can respond to visible light and core–shell structure can effectively separate the photogenerated electrons and holes, AgBr@Ag/TiO2 core–shell composites exhibited outstanding visible light photocatalytic activity for the degradation of acid orange 7. The activity of AgBr@Ag/TiO2 is related to the thickness of TiO2 shell, and the optimal shell thickness for obtaining the highest activity is 10 nm.

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Keywords
Silver bromide; Titanium dioxide; Core–shell structure; Photocatalytic degradation; Organic pollutants
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AgBr@Ag/TiO2 core–shell composite with excellent visible light photocatalytic activity and hydrothermal stability
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 38, 5 August 2013, Pages 16–20
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