Enhanced potocatalytic activity of Pt decorated TiO2 nanoparticles

Pt decorated TiO 2 (Pt@TiO 2 ) nanoparticles were synthesised via the sol-gel approach and subsequent thermal decomposition of chloroplatinic acid. Characterisations with scanning electron microscopy and X-ray diffraction showed that the anatase titanium oxide (TiO 2 ) nanoparticles were around 30 n...

Full description

Saved in:
Bibliographic Details
Published inMaterials research innovations Vol. 19; no. sup7; pp. s7 - s10
Main Authors Hu, R.-H., Xiao, D.-Y., Chen, L.-L.
Format Journal Article
LanguageEnglish
Published Taylor & Francis 01.07.2015
Subjects
Anatase
Decoration
Degradation
Metal-semiconductor junction
Nanoparticles
Photocatalysis
Photocatalytic activity
Platinum
Sol gel process
TiO
Titanium dioxide
Ultraviolet
Online AccessGet full text

Cover

More Information
Summary:Pt decorated TiO 2 (Pt@TiO 2 ) nanoparticles were synthesised via the sol-gel approach and subsequent thermal decomposition of chloroplatinic acid. Characterisations with scanning electron microscopy and X-ray diffraction showed that the anatase titanium oxide (TiO 2 ) nanoparticles were around 30 nm in diameter. The photocatalytic activities of Pt@TiO 2 were investigated by measurement the degradation of methyl orange (MO) solution under ultraviolet light irradiation, the results indicated that the Pt@TiO 2 nanoparticles exhibited a markedly enhanced photocatalytic activity in the degradation of MO when compared to pure anatase TiO 2 nanoparticles. The improved photocatalytic activity is interpreted in terms of the formation of metal-semiconductor junction at the interface of Pt/TiO 2 , which is favour of the carrier separation upon photoexcitation. Our results provide an approach to prepare highly efficient photocatalyst to degrade organic pollutants in water.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1432-8917
1433-075X
DOI:10.1179/1432891715Z.0000000002043