2024-03-29T02:37:26Z
https://soar-ir.repo.nii.ac.jp/oai
oai:soar-ir.repo.nii.ac.jp:00012341
2022-12-14T04:06:00Z
1221:1222
Nitrogen doping into titanium dioxide by the sol-gel method using nitric acid
Nishikiori, Hiromasa
Fukasawa, Yosuke
Yokosuka, Yuta
Fujii, Tsuneo
The final publication is available at www.springerlink.com
Titanium dioxide
Nitrogen doping
Nitric acid
Ultrasonic irradiation
Photocatalyst
N-doped TiO(2) has been prepared by use of sol-gel systems containing titanium alkoxide, with nitric acid as the nitrogen source. The time needed for gelation of the systems was drastically reduced by ultrasonic irradiation. The peaks assigned to the nitrate and nitrous ions were observed by FT-IR measurement during the sol-gel reaction. The N-doping was confirmed by the observation of N-O peaks in the XPS spectrum of the sample heated at 400 A degrees C. The nitrate ion acted as an oxidizer of the ethanol solvent and titanium species. The TiO(2) became doped with nitrogen oxide species as a result of reduction of nitrate ion incorporated into the dried gel samples. These results indicated that the added nitric acid was reduced during the sol-gel transition and heating process, and the resulting NO species were situated in the titania networks. The UV and visible photocatalytic activity of the samples was confirmed by the degradation of trichloroethylene.
Article
RESEARCH ON CHEMICAL INTERMEDIATES. 37(8):869-881 (2011)
SPRINGER
2011-10
eng
journal article
AM
http://hdl.handle.net/10091/17221
https://soar-ir.repo.nii.ac.jp/records/12341
https://doi.org/10.1007/s11164-011-0294-y
10.1007/s11164-011-0294-y
0922-6168
AA10679655
RESEARCH ON CHEMICAL INTERMEDIATES
37
8
869
881
https://soar-ir.repo.nii.ac.jp/record/12341/files/Nitrogen_doping_titanium_dioxide_sol-gel_method.pdf
application/pdf
843.0 kB
2015-09-28