The Synergistic Effect of Nitrogen Dopant and Calcination Temperature on the Visible-Light-Induced Photoactivity of N-Doped TiO2
The synergistic effect of nitrogen content and calcinations temperature on the N-doped TiO2 catalysts prepared by sol-gel method was investigated. The phase and structure, chemical state, optical properties, and surface area/pore distribution of N-doped TiO2 were characterized using X-ray diffractio...
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | International Journal of Photoenergy |
| Online Access: | http://dx.doi.org/10.1155/2013/268723 |
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| _version_ | 1832548102284771328 |
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| author | Yao-Tung Lin Chih-Huang Weng Hui-Jan Hsu Yu-Hao Lin Ching-Chang Shiesh |
| author_facet | Yao-Tung Lin Chih-Huang Weng Hui-Jan Hsu Yu-Hao Lin Ching-Chang Shiesh |
| author_sort | Yao-Tung Lin |
| collection | DOAJ |
| description | The synergistic effect of nitrogen content and calcinations temperature on the N-doped TiO2 catalysts prepared by sol-gel method was investigated. The phase and structure, chemical state, optical properties, and surface area/pore distribution of N-doped TiO2 were characterized using X-ray diffraction spectrometer, high-resolution transmission electron microscope, X-ray photoelectron spectroscopy, UV-vis diffusion reflectance spectroscopy, and Brunauer-Emmett-Teller specific surface area. Finding showed that the photocatalytic activity of N-doped TiO2 was greatly enhanced compared to pure TiO2 under visible irradiation. N dopants could retard the transformation from anatase to rutile phase. Namely, N-doping effect is attributed to the anatase phase stabilization. The results showed nitrogen atoms were incorporated into the interstitial positions of the TiO2 lattice. Ethylene was used to evaluate the photocatalytic activity of samples under visible-light illumination. The results suggested good anatase crystallization, smaller particle size, and larger surface are beneficial for photocatalytic activity of N-doped TiO2. The N-doped TiO2 catalyst prepared with ammonia to titanium isopropoxide molar ratio of 2.0 and calcinated at 400°C showed the best photocatalytic ability. |
| format | Article |
| id | doaj-art-18fb52cced2949b6a9a93965b3fdc566 |
| institution | Kabale University |
| issn | 1110-662X 1687-529X |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Photoenergy |
| spelling | doaj-art-18fb52cced2949b6a9a93965b3fdc5662025-02-03T06:42:14ZengWileyInternational Journal of Photoenergy1110-662X1687-529X2013-01-01201310.1155/2013/268723268723The Synergistic Effect of Nitrogen Dopant and Calcination Temperature on the Visible-Light-Induced Photoactivity of N-Doped TiO2Yao-Tung Lin0Chih-Huang Weng1Hui-Jan Hsu2Yu-Hao Lin3Ching-Chang Shiesh4Department of Soil and Environmental Sciences and Center of Nanoscience and Nanotechnology, National Chung Hsing University, TaiChung 402, TaiwanDepartment of Civil and Ecological Engineering, I-Shou University, Kaohsiung 84001, TaiwanDepartment of Soil and Environmental Sciences and Center of Nanoscience and Nanotechnology, National Chung Hsing University, TaiChung 402, TaiwanDepartment of Soil and Environmental Sciences and Center of Nanoscience and Nanotechnology, National Chung Hsing University, TaiChung 402, TaiwanDepartment of Horticulture, National Chung Hsing University, TaiChung 402, TaiwanThe synergistic effect of nitrogen content and calcinations temperature on the N-doped TiO2 catalysts prepared by sol-gel method was investigated. The phase and structure, chemical state, optical properties, and surface area/pore distribution of N-doped TiO2 were characterized using X-ray diffraction spectrometer, high-resolution transmission electron microscope, X-ray photoelectron spectroscopy, UV-vis diffusion reflectance spectroscopy, and Brunauer-Emmett-Teller specific surface area. Finding showed that the photocatalytic activity of N-doped TiO2 was greatly enhanced compared to pure TiO2 under visible irradiation. N dopants could retard the transformation from anatase to rutile phase. Namely, N-doping effect is attributed to the anatase phase stabilization. The results showed nitrogen atoms were incorporated into the interstitial positions of the TiO2 lattice. Ethylene was used to evaluate the photocatalytic activity of samples under visible-light illumination. The results suggested good anatase crystallization, smaller particle size, and larger surface are beneficial for photocatalytic activity of N-doped TiO2. The N-doped TiO2 catalyst prepared with ammonia to titanium isopropoxide molar ratio of 2.0 and calcinated at 400°C showed the best photocatalytic ability.http://dx.doi.org/10.1155/2013/268723 |
| spellingShingle | Yao-Tung Lin Chih-Huang Weng Hui-Jan Hsu Yu-Hao Lin Ching-Chang Shiesh The Synergistic Effect of Nitrogen Dopant and Calcination Temperature on the Visible-Light-Induced Photoactivity of N-Doped TiO2 International Journal of Photoenergy |
| title | The Synergistic Effect of Nitrogen Dopant and Calcination Temperature on the Visible-Light-Induced Photoactivity of N-Doped TiO2 |
| title_full | The Synergistic Effect of Nitrogen Dopant and Calcination Temperature on the Visible-Light-Induced Photoactivity of N-Doped TiO2 |
| title_fullStr | The Synergistic Effect of Nitrogen Dopant and Calcination Temperature on the Visible-Light-Induced Photoactivity of N-Doped TiO2 |
| title_full_unstemmed | The Synergistic Effect of Nitrogen Dopant and Calcination Temperature on the Visible-Light-Induced Photoactivity of N-Doped TiO2 |
| title_short | The Synergistic Effect of Nitrogen Dopant and Calcination Temperature on the Visible-Light-Induced Photoactivity of N-Doped TiO2 |
| title_sort | synergistic effect of nitrogen dopant and calcination temperature on the visible light induced photoactivity of n doped tio2 |
| url | http://dx.doi.org/10.1155/2013/268723 |
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