Hydrothermal Synthesis of Nitrogen-Doped Titanium Dioxide and Evaluation of Its Visible Light Photocatalytic Activity
Nitrogen-doped titanium dioxide (N-doped TiO2) photocatalyst was synthesized from nanotube titanic acid (denoted as NTA; molecular formula H2Ti2O5·H2O ) precursor via a hydrothermal route in ammonia solution. As-synthesized N-doped TiO2 catalysts were characterized by means of X-ray diffraction, tra...
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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/10.1155/2012/198497 |
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| author | Junjie Qian Guanjun Cui Mingjun Jing Yan Wang Min Zhang Jianjun Yang |
| author_facet | Junjie Qian Guanjun Cui Mingjun Jing Yan Wang Min Zhang Jianjun Yang |
| author_sort | Junjie Qian |
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| description | Nitrogen-doped titanium dioxide (N-doped TiO2) photocatalyst was synthesized from nanotube titanic acid (denoted as NTA; molecular formula H2Ti2O5·H2O
) precursor via a hydrothermal route in ammonia solution. As-synthesized N-doped TiO2 catalysts were characterized by means of X-ray diffraction, transmission electron microscopy, diffuse reflectance spectrometry, X-ray photoelectron spectroscopy, electron spin resonance spectrometry and Fourier transform infrared spectrometry. It was found that nanotube ammonium titanate (NAT) was produced as an intermediate during the preparation of N-doped TiO2 from NTA, as evidenced by the N1s X-ray photoelectron spectroscopic peak of NH4 + at 401.7 eV. The catalyst showed much higher activities to the degradation of methylene blue and p-chlorophenol under visible light irradiation than Degussa P25. This could be attributed to the enhanced absorption of N-doped TiO2 in visible light region associated with the formation of single-electron-trapped oxygen vacancies and the inhibition of recombination of photo-generated electron-hole pair by doped nitrogen. |
| format | Article |
| id | doaj-art-9c077ba5cb294acaae1e3065c498675b |
| 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-9c077ba5cb294acaae1e3065c498675b2025-02-03T01:22:54ZengWileyInternational Journal of Photoenergy1110-662X1687-529X2012-01-01201210.1155/2012/198497198497Hydrothermal Synthesis of Nitrogen-Doped Titanium Dioxide and Evaluation of Its Visible Light Photocatalytic ActivityJunjie Qian0Guanjun Cui1Mingjun Jing2Yan Wang3Min Zhang4Jianjun Yang5Key Laboratory for Special Functional Materials, Henan University, Kaifeng 475004, ChinaKey Laboratory for Special Functional Materials, Henan University, Kaifeng 475004, ChinaKey Laboratory for Special Functional Materials, Henan University, Kaifeng 475004, ChinaKey Laboratory for Special Functional Materials, Henan University, Kaifeng 475004, ChinaKey Laboratory for Special Functional Materials, Henan University, Kaifeng 475004, ChinaKey Laboratory for Special Functional Materials, Henan University, Kaifeng 475004, ChinaNitrogen-doped titanium dioxide (N-doped TiO2) photocatalyst was synthesized from nanotube titanic acid (denoted as NTA; molecular formula H2Ti2O5·H2O ) precursor via a hydrothermal route in ammonia solution. As-synthesized N-doped TiO2 catalysts were characterized by means of X-ray diffraction, transmission electron microscopy, diffuse reflectance spectrometry, X-ray photoelectron spectroscopy, electron spin resonance spectrometry and Fourier transform infrared spectrometry. It was found that nanotube ammonium titanate (NAT) was produced as an intermediate during the preparation of N-doped TiO2 from NTA, as evidenced by the N1s X-ray photoelectron spectroscopic peak of NH4 + at 401.7 eV. The catalyst showed much higher activities to the degradation of methylene blue and p-chlorophenol under visible light irradiation than Degussa P25. This could be attributed to the enhanced absorption of N-doped TiO2 in visible light region associated with the formation of single-electron-trapped oxygen vacancies and the inhibition of recombination of photo-generated electron-hole pair by doped nitrogen.http://dx.doi.org/10.1155/2012/198497 |
| spellingShingle | Junjie Qian Guanjun Cui Mingjun Jing Yan Wang Min Zhang Jianjun Yang Hydrothermal Synthesis of Nitrogen-Doped Titanium Dioxide and Evaluation of Its Visible Light Photocatalytic Activity International Journal of Photoenergy |
| title | Hydrothermal Synthesis of Nitrogen-Doped Titanium Dioxide and Evaluation of Its Visible Light Photocatalytic Activity |
| title_full | Hydrothermal Synthesis of Nitrogen-Doped Titanium Dioxide and Evaluation of Its Visible Light Photocatalytic Activity |
| title_fullStr | Hydrothermal Synthesis of Nitrogen-Doped Titanium Dioxide and Evaluation of Its Visible Light Photocatalytic Activity |
| title_full_unstemmed | Hydrothermal Synthesis of Nitrogen-Doped Titanium Dioxide and Evaluation of Its Visible Light Photocatalytic Activity |
| title_short | Hydrothermal Synthesis of Nitrogen-Doped Titanium Dioxide and Evaluation of Its Visible Light Photocatalytic Activity |
| title_sort | hydrothermal synthesis of nitrogen doped titanium dioxide and evaluation of its visible light photocatalytic activity |
| url | http://dx.doi.org/10.1155/2012/198497 |
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