Nitrogen-Doped TiO2 Nanotube Arrays with Enhanced Photoelectrochemical Property
N-doped TiO2 nanotube arrays were prepared by electrochemical anodization in glycerol electrolyte, followed by electrochemical deposition in NH4Cl solution. An orthogonal experiment was used to optimize the doping conditions. Electrolyte concentration, reaction voltage, and reaction time were the ma...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | International Journal of Photoenergy |
| Online Access: | http://dx.doi.org/10.1155/2012/794207 |
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| _version_ | 1832564547072819200 |
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| author | Shipu Li Shiwei Lin Jianjun Liao Nengqian Pan Danhong Li Jianbao Li |
| author_facet | Shipu Li Shiwei Lin Jianjun Liao Nengqian Pan Danhong Li Jianbao Li |
| author_sort | Shipu Li |
| collection | DOAJ |
| description | N-doped TiO2 nanotube arrays were prepared by electrochemical anodization in glycerol electrolyte, followed by electrochemical deposition in NH4Cl solution. An orthogonal experiment was used to optimize the doping conditions. Electrolyte concentration, reaction voltage, and reaction time were the main factors to influence the N-doping effect which was the determinant of the visible range photoresponse. The optimal N-doping conditions were determined as follows: reaction voltage is 3 V, reaction time is 2 h, and electrolyte concentration is 0.5 M. The maximal photocurrent enhanced ratio was 30% under white-light irradiation. About 58% improvement of photocatalytic efficiency was achieved in the Rhodamine B degradation experiment by N doping. The kinetic constant of the N-doped TNT arrays sample was almost twice higher than that of the undoped sample. Further analysis by X-ray photoelectron spectroscopy supported that electrochemical deposition is a simple and efficient method for N doping into TiO2 nanotube arrays. |
| format | Article |
| id | doaj-art-7e19de50224e434bb6a583d4da02d62c |
| institution | Kabale University |
| issn | 1110-662X 1687-529X |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Photoenergy |
| spelling | doaj-art-7e19de50224e434bb6a583d4da02d62c2025-02-03T01:10:50ZengWileyInternational Journal of Photoenergy1110-662X1687-529X2012-01-01201210.1155/2012/794207794207Nitrogen-Doped TiO2 Nanotube Arrays with Enhanced Photoelectrochemical PropertyShipu Li0Shiwei Lin1Jianjun Liao2Nengqian Pan3Danhong Li4Jianbao Li5Key Laboratory of Ministry of Education for Application Technology of Chemical Materials in Hainan Superior Resources, School of Materials and Chemical Engineering, Hainan University, Haikou 570228, ChinaKey Laboratory of Ministry of Education for Application Technology of Chemical Materials in Hainan Superior Resources, School of Materials and Chemical Engineering, Hainan University, Haikou 570228, ChinaKey Laboratory of Ministry of Education for Application Technology of Chemical Materials in Hainan Superior Resources, School of Materials and Chemical Engineering, Hainan University, Haikou 570228, ChinaKey Laboratory of Ministry of Education for Application Technology of Chemical Materials in Hainan Superior Resources, School of Materials and Chemical Engineering, Hainan University, Haikou 570228, ChinaKey Laboratory of Ministry of Education for Application Technology of Chemical Materials in Hainan Superior Resources, School of Materials and Chemical Engineering, Hainan University, Haikou 570228, ChinaKey Laboratory of Ministry of Education for Application Technology of Chemical Materials in Hainan Superior Resources, School of Materials and Chemical Engineering, Hainan University, Haikou 570228, ChinaN-doped TiO2 nanotube arrays were prepared by electrochemical anodization in glycerol electrolyte, followed by electrochemical deposition in NH4Cl solution. An orthogonal experiment was used to optimize the doping conditions. Electrolyte concentration, reaction voltage, and reaction time were the main factors to influence the N-doping effect which was the determinant of the visible range photoresponse. The optimal N-doping conditions were determined as follows: reaction voltage is 3 V, reaction time is 2 h, and electrolyte concentration is 0.5 M. The maximal photocurrent enhanced ratio was 30% under white-light irradiation. About 58% improvement of photocatalytic efficiency was achieved in the Rhodamine B degradation experiment by N doping. The kinetic constant of the N-doped TNT arrays sample was almost twice higher than that of the undoped sample. Further analysis by X-ray photoelectron spectroscopy supported that electrochemical deposition is a simple and efficient method for N doping into TiO2 nanotube arrays.http://dx.doi.org/10.1155/2012/794207 |
| spellingShingle | Shipu Li Shiwei Lin Jianjun Liao Nengqian Pan Danhong Li Jianbao Li Nitrogen-Doped TiO2 Nanotube Arrays with Enhanced Photoelectrochemical Property International Journal of Photoenergy |
| title | Nitrogen-Doped TiO2 Nanotube Arrays with Enhanced Photoelectrochemical Property |
| title_full | Nitrogen-Doped TiO2 Nanotube Arrays with Enhanced Photoelectrochemical Property |
| title_fullStr | Nitrogen-Doped TiO2 Nanotube Arrays with Enhanced Photoelectrochemical Property |
| title_full_unstemmed | Nitrogen-Doped TiO2 Nanotube Arrays with Enhanced Photoelectrochemical Property |
| title_short | Nitrogen-Doped TiO2 Nanotube Arrays with Enhanced Photoelectrochemical Property |
| title_sort | nitrogen doped tio2 nanotube arrays with enhanced photoelectrochemical property |
| url | http://dx.doi.org/10.1155/2012/794207 |
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