Abstract
Graphical abstract: N-doped P25 TiO{sub 2}-amorphous Al{sub 2}O{sub 3} composites were facile prepared via one-step solution combustion, which showed much higher visible-light photocatalytic activity than that of P25 TiO{sub 2} due to the N-doping in the high temperature combustion process, synergetic effect between amorphous Al{sub 2}O{sub 3} and TiO{sub 2}, and high specific surface area. Highlights: Black-Right-Pointing-Pointer N-doped P25 TiO{sub 2}-amorphous Al{sub 2}O{sub 3} composites were prepared via solution combustion. Black-Right-Pointing-Pointer The composites showed much higher visible light activity than that of P25 TiO{sub 2}. Black-Right-Pointing-Pointer Amorphous Al{sub 2}O{sub 3} was firstly found to be a photocatalyst under UV light illumination. Black-Right-Pointing-Pointer Probable photocatalytic mechanism under visible light irradiation was proposed. - Abstract: Nitrogen-doped Degussa P25 TiO{sub 2}-amorphous Al{sub 2}O{sub 3} composites were prepared via facile solution combustion. The composites were characterised using X-ray diffraction, high-resolution transmission microscopy, scanning electron microscopy, nitrogen adsorption-desorption measurements, X-ray photoelectron spectroscopy, UV-vis light-diffusion reflectance spectrometry (DRS), zeta-potential measurements, and photoluminescence spectroscopy. The DRS results showed that TiO{sub 2} and amorphous Al{sub 2}O{sub 3} exhibited absorption in the UV region. However, the Al{sub 2}O{sub 3}/TiO{sub 2} composite exhibited visible-light absorption, which was attributed to N-doping during high-temperature combustion and to alterations in the electronic structure
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Li, Fa-tang;
[1]
Hebei Key Laboratory of Material Near-Net Forming Technology, Hebei University of Science and Technology, Shijiazhuang 050018 (China)];
Zhao, Ye;
Hao, Ying-juan;
Wang, Xiao-jing;
Liu, Rui-hong;
Zhao, Di-shun;
[1]
Chen, Dai-mei
[2]
- College of Science, Hebei University of Science and Technology, Shijiazhuang 050018 (China)
- National Laboratory of Mineral Materials, China University of Geosciences, Beijing 100083 (China)
Citation Formats
Li, Fa-tang, Hebei Key Laboratory of Material Near-Net Forming Technology, Hebei University of Science and Technology, Shijiazhuang 050018 (China)], Zhao, Ye, Hao, Ying-juan, Wang, Xiao-jing, Liu, Rui-hong, Zhao, Di-shun, and Chen, Dai-mei.
N-doped P25 TiO{sub 2}-amorphous Al{sub 2}O{sub 3} composites: One-step solution combustion preparation and enhanced visible-light photocatalytic activity.
Netherlands: N. p.,
2012.
Web.
doi:10.1016/J.JHAZMAT.2012.08.016.
Li, Fa-tang, Hebei Key Laboratory of Material Near-Net Forming Technology, Hebei University of Science and Technology, Shijiazhuang 050018 (China)], Zhao, Ye, Hao, Ying-juan, Wang, Xiao-jing, Liu, Rui-hong, Zhao, Di-shun, & Chen, Dai-mei.
N-doped P25 TiO{sub 2}-amorphous Al{sub 2}O{sub 3} composites: One-step solution combustion preparation and enhanced visible-light photocatalytic activity.
Netherlands.
https://doi.org/10.1016/J.JHAZMAT.2012.08.016
Li, Fa-tang, Hebei Key Laboratory of Material Near-Net Forming Technology, Hebei University of Science and Technology, Shijiazhuang 050018 (China)], Zhao, Ye, Hao, Ying-juan, Wang, Xiao-jing, Liu, Rui-hong, Zhao, Di-shun, and Chen, Dai-mei.
2012.
"N-doped P25 TiO{sub 2}-amorphous Al{sub 2}O{sub 3} composites: One-step solution combustion preparation and enhanced visible-light photocatalytic activity."
Netherlands.
https://doi.org/10.1016/J.JHAZMAT.2012.08.016.
@misc{etde_22161793,
title = {N-doped P25 TiO{sub 2}-amorphous Al{sub 2}O{sub 3} composites: One-step solution combustion preparation and enhanced visible-light photocatalytic activity}
author = {Li, Fa-tang, Hebei Key Laboratory of Material Near-Net Forming Technology, Hebei University of Science and Technology, Shijiazhuang 050018 (China)], Zhao, Ye, Hao, Ying-juan, Wang, Xiao-jing, Liu, Rui-hong, Zhao, Di-shun, and Chen, Dai-mei}
abstractNote = {Graphical abstract: N-doped P25 TiO{sub 2}-amorphous Al{sub 2}O{sub 3} composites were facile prepared via one-step solution combustion, which showed much higher visible-light photocatalytic activity than that of P25 TiO{sub 2} due to the N-doping in the high temperature combustion process, synergetic effect between amorphous Al{sub 2}O{sub 3} and TiO{sub 2}, and high specific surface area. Highlights: Black-Right-Pointing-Pointer N-doped P25 TiO{sub 2}-amorphous Al{sub 2}O{sub 3} composites were prepared via solution combustion. Black-Right-Pointing-Pointer The composites showed much higher visible light activity than that of P25 TiO{sub 2}. Black-Right-Pointing-Pointer Amorphous Al{sub 2}O{sub 3} was firstly found to be a photocatalyst under UV light illumination. Black-Right-Pointing-Pointer Probable photocatalytic mechanism under visible light irradiation was proposed. - Abstract: Nitrogen-doped Degussa P25 TiO{sub 2}-amorphous Al{sub 2}O{sub 3} composites were prepared via facile solution combustion. The composites were characterised using X-ray diffraction, high-resolution transmission microscopy, scanning electron microscopy, nitrogen adsorption-desorption measurements, X-ray photoelectron spectroscopy, UV-vis light-diffusion reflectance spectrometry (DRS), zeta-potential measurements, and photoluminescence spectroscopy. The DRS results showed that TiO{sub 2} and amorphous Al{sub 2}O{sub 3} exhibited absorption in the UV region. However, the Al{sub 2}O{sub 3}/TiO{sub 2} composite exhibited visible-light absorption, which was attributed to N-doping during high-temperature combustion and to alterations in the electronic structure of Ti species induced by the addition of Al. The optimal molar ratio of TiO{sub 2} to Al{sub 2}O{sub 3} was 1.5:1, and this composite exhibited a large specific surface area of 152 m{sup 2}/g, surface positive charges, and enhanced photocatalytic activity. These characteristics enhanced the degradation rate of anionic methylene orange, which was 43.6 times greater than that of pure P25 TiO{sub 2}. The high visible-light photocatalytic activity was attributed to synthetic effects between amorphous Al{sub 2}O{sub 3} and TiO{sub 2}, low recombination efficiency of photo-excited electrons and holes, N-doping, and a large specific surface area. Experiments that involved radical scavengers indicated that {center_dot}OH and O{sub 2}{center_dot}{sup -} were the main reactive species. A potential photocatalytic mechanism was also proposed.}
doi = {10.1016/J.JHAZMAT.2012.08.016}
journal = []
volume = {239-240}
journal type = {AC}
place = {Netherlands}
year = {2012}
month = {Nov}
}
title = {N-doped P25 TiO{sub 2}-amorphous Al{sub 2}O{sub 3} composites: One-step solution combustion preparation and enhanced visible-light photocatalytic activity}
author = {Li, Fa-tang, Hebei Key Laboratory of Material Near-Net Forming Technology, Hebei University of Science and Technology, Shijiazhuang 050018 (China)], Zhao, Ye, Hao, Ying-juan, Wang, Xiao-jing, Liu, Rui-hong, Zhao, Di-shun, and Chen, Dai-mei}
abstractNote = {Graphical abstract: N-doped P25 TiO{sub 2}-amorphous Al{sub 2}O{sub 3} composites were facile prepared via one-step solution combustion, which showed much higher visible-light photocatalytic activity than that of P25 TiO{sub 2} due to the N-doping in the high temperature combustion process, synergetic effect between amorphous Al{sub 2}O{sub 3} and TiO{sub 2}, and high specific surface area. Highlights: Black-Right-Pointing-Pointer N-doped P25 TiO{sub 2}-amorphous Al{sub 2}O{sub 3} composites were prepared via solution combustion. Black-Right-Pointing-Pointer The composites showed much higher visible light activity than that of P25 TiO{sub 2}. Black-Right-Pointing-Pointer Amorphous Al{sub 2}O{sub 3} was firstly found to be a photocatalyst under UV light illumination. Black-Right-Pointing-Pointer Probable photocatalytic mechanism under visible light irradiation was proposed. - Abstract: Nitrogen-doped Degussa P25 TiO{sub 2}-amorphous Al{sub 2}O{sub 3} composites were prepared via facile solution combustion. The composites were characterised using X-ray diffraction, high-resolution transmission microscopy, scanning electron microscopy, nitrogen adsorption-desorption measurements, X-ray photoelectron spectroscopy, UV-vis light-diffusion reflectance spectrometry (DRS), zeta-potential measurements, and photoluminescence spectroscopy. The DRS results showed that TiO{sub 2} and amorphous Al{sub 2}O{sub 3} exhibited absorption in the UV region. However, the Al{sub 2}O{sub 3}/TiO{sub 2} composite exhibited visible-light absorption, which was attributed to N-doping during high-temperature combustion and to alterations in the electronic structure of Ti species induced by the addition of Al. The optimal molar ratio of TiO{sub 2} to Al{sub 2}O{sub 3} was 1.5:1, and this composite exhibited a large specific surface area of 152 m{sup 2}/g, surface positive charges, and enhanced photocatalytic activity. These characteristics enhanced the degradation rate of anionic methylene orange, which was 43.6 times greater than that of pure P25 TiO{sub 2}. The high visible-light photocatalytic activity was attributed to synthetic effects between amorphous Al{sub 2}O{sub 3} and TiO{sub 2}, low recombination efficiency of photo-excited electrons and holes, N-doping, and a large specific surface area. Experiments that involved radical scavengers indicated that {center_dot}OH and O{sub 2}{center_dot}{sup -} were the main reactive species. A potential photocatalytic mechanism was also proposed.}
doi = {10.1016/J.JHAZMAT.2012.08.016}
journal = []
volume = {239-240}
journal type = {AC}
place = {Netherlands}
year = {2012}
month = {Nov}
}