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[email protected]/TiO2core–shell composite with excellent visible light photocatalytic activity and hydrothermal stability

Authors
Journal
Catalysis Communications
1566-7367
Publisher
Elsevier
Publication Date
Volume
38
Identifiers
DOI: 10.1016/j.catcom.2013.04.006
Keywords
  • Silver Bromide
  • Titanium Dioxide
  • Core–Shell Structure
  • Photocatalytic Degradation
  • Organic Pollutants
Disciplines
  • Earth Science
  • Geography

Abstract

Abstract [email protected]/TiO2 core–shell photocatalysts were fabricated by a facile green route. TiO2 was uniformly coated on the surface of cubic AgBr, making [email protected]/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, [email protected]/TiO2 core–shell composites exhibited outstanding visible light photocatalytic activity for the degradation of acid orange 7. The activity of [email protected]/TiO2 is related to the thickness of TiO2 shell, and the optimal shell thickness for obtaining the highest activity is 10nm.

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