TY - GEN
T1 - Preparation of nitrogen-doped mesoporous TiO2 with a room-temperature ionic liquid
AU - Hsiung, Tung Li
AU - Wang, H. Paul
AU - Wei, Yu Lin
PY - 2010/11/9
Y1 - 2010/11/9
N2 - The nitrogen-doped mesoporous TiO2 (meso N-TiO2) have been prepared by the sol-gel method with room temperature ionic liquids (RTIL) (C4mimBF4) as the template. By 1H NMR, interactions between titanium and ionic liquid are observed. The meso N-TiO 2 (10-50 nm) possesses the anatase phase with a pore opening of 5-8 nm observed by TEM. The band gap of the meso N-TiO2 is 2.47 eV as determined by DR-UV/VIS. The meso N-TiO2 has a remarkable activity in photocatalytic degradation of methylene blue under visible light (λ. >400 nm). The extended X-ray absorption fine structure (EXAFS) data show that the Ti-0 and Ti-Ti bond distances in the meso N-TiO2 are 1.96 and 3.02 å, respectively, suggesting that the meso N-TiO2 may be distorted with insertion of nitrogen into the TiO2 matrix.
AB - The nitrogen-doped mesoporous TiO2 (meso N-TiO2) have been prepared by the sol-gel method with room temperature ionic liquids (RTIL) (C4mimBF4) as the template. By 1H NMR, interactions between titanium and ionic liquid are observed. The meso N-TiO 2 (10-50 nm) possesses the anatase phase with a pore opening of 5-8 nm observed by TEM. The band gap of the meso N-TiO2 is 2.47 eV as determined by DR-UV/VIS. The meso N-TiO2 has a remarkable activity in photocatalytic degradation of methylene blue under visible light (λ. >400 nm). The extended X-ray absorption fine structure (EXAFS) data show that the Ti-0 and Ti-Ti bond distances in the meso N-TiO2 are 1.96 and 3.02 å, respectively, suggesting that the meso N-TiO2 may be distorted with insertion of nitrogen into the TiO2 matrix.
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M3 - Conference contribution
AN - SCOPUS:78049443792
SN - 9781439834015
T3 - Nanotechnology 2010: Advanced Materials, CNTs, Particles, Films and Composites - Technical Proceedings of the 2010 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2010
SP - 440
EP - 443
BT - Nanotechnology 2010
T2 - Nanotechnology 2010: Advanced Materials, CNTs, Particles, Films and Composites - 2010 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2010
Y2 - 21 June 2010 through 24 June 2010
ER -