Efficient visible light-induced photoelectrocatalytic degradation of rhodamine B by polyaniline-sensitized TiO 2 nanotube arrays
Self-organized anodic TiO 2 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 nano...
| Main Authors: | , , , |
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| Format: | Journal Article |
| Published: |
2011
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| Online Access: | http://hdl.handle.net/20.500.11937/21792 |
| _version_ | 1848750689496334336 |
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| author | Li, Xin Yong Teng, W. Zhao, Q. Wang, L. |
| author_facet | Li, Xin Yong Teng, W. Zhao, Q. Wang, L. |
| author_sort | Li, Xin Yong |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Self-organized anodic TiO 2 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 TiO 2 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 (?>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/TiO 2 nanotube arrays interface. © 2011 Springer Science+Business Media B.V. |
| first_indexed | 2025-11-14T07:40:49Z |
| format | Journal Article |
| id | curtin-20.500.11937-21792 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:40:49Z |
| publishDate | 2011 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-217922017-09-13T13:53:46Z Efficient visible light-induced photoelectrocatalytic degradation of rhodamine B by polyaniline-sensitized TiO 2 nanotube arrays Li, Xin Yong Teng, W. Zhao, Q. Wang, L. Self-organized anodic TiO 2 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 TiO 2 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 (?>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/TiO 2 nanotube arrays interface. © 2011 Springer Science+Business Media B.V. 2011 Journal Article http://hdl.handle.net/20.500.11937/21792 10.1007/s11051-011-0589-3 restricted |
| spellingShingle | Li, Xin Yong Teng, W. Zhao, Q. Wang, L. Efficient visible light-induced photoelectrocatalytic degradation of rhodamine B by polyaniline-sensitized TiO 2 nanotube arrays |
| title | Efficient visible light-induced photoelectrocatalytic degradation of rhodamine B by polyaniline-sensitized TiO 2 nanotube arrays |
| title_full | Efficient visible light-induced photoelectrocatalytic degradation of rhodamine B by polyaniline-sensitized TiO 2 nanotube arrays |
| title_fullStr | Efficient visible light-induced photoelectrocatalytic degradation of rhodamine B by polyaniline-sensitized TiO 2 nanotube arrays |
| title_full_unstemmed | Efficient visible light-induced photoelectrocatalytic degradation of rhodamine B by polyaniline-sensitized TiO 2 nanotube arrays |
| title_short | Efficient visible light-induced photoelectrocatalytic degradation of rhodamine B by polyaniline-sensitized TiO 2 nanotube arrays |
| title_sort | efficient visible light-induced photoelectrocatalytic degradation of rhodamine b by polyaniline-sensitized tio 2 nanotube arrays |
| url | http://hdl.handle.net/20.500.11937/21792 |