Efficient visible light-induced photoelectrocatalytic degradation of rhodamine B by polyaniline-sensitized TiO2 nanotube arrays

Li, Xinyong, Teng, Wei, Zhao, Qidong and Wang, Lianzhou (2011) Efficient visible light-induced photoelectrocatalytic degradation of rhodamine B by polyaniline-sensitized TiO2 nanotube arrays. Journal of Nanoparticle Research, 13 12: 6813-6820. doi:10.1007/s11051-011-0589-3


Author Li, Xinyong
Teng, Wei
Zhao, Qidong
Wang, Lianzhou
Title Efficient visible light-induced photoelectrocatalytic degradation of rhodamine B by polyaniline-sensitized TiO2 nanotube arrays
Journal name Journal of Nanoparticle Research   Check publisher's open access policy
ISSN 1388-0764
1572-896X
Publication date 2011-12-01
Year available 2011
Sub-type Article (original research)
DOI 10.1007/s11051-011-0589-3
Open Access Status Not yet assessed
Volume 13
Issue 12
Start page 6813
End page 6820
Total pages 8
Place of publication Dordrecht, The Netherlands
Publisher Springer Netherlands
Language eng
Abstract Self-organized anodic TiO2 nanotube arrays were sensitized with polyaniline by a simple electrodeposite method. The morphological and structural properties studied by scanning electron microscopy and fourier transform infrared spectroscopy reveal the successful deposition of polyaniline on the nanotube arrays. The polyaniline-sensitized TiO2 nanotube arrays exhibit a distinguishable red shift on the absorption spectrum. Electrochemical impedance investigation attested to a significant improvement of the interfacial electron-transfer kinetics for promoted electron-hole effective separation. The as-prepared samples showed a high efficiency for the photoelectrocatalytic degradation of rhodamine B under visible-light irradiation (lambda > 400 nm). The enhanced photoelectrocatalytic activity could be attributed to the extended absorption in the visible-light region by the polyaniline and the effective separation of photogenerated carriers driven by the photoinduced potential difference generated at the polyaniline/TiO2 nanotube arrays interface.
Keyword Electrodeposition
Polyaniline
Rhodamine B
Photoelectrocatalysis
Photocatalytic Degradation
Polymerization
Q-Index Code C1
Q-Index Status Confirmed Code
Grant ID 20877013
2010AA064902
2011CB936002
LR2010090
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Chemical Engineering Publications
Official 2012 Collection
 
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