TY - JOUR
T1 - Photocatalytic activity of (sulfur, nitrogen)-codoped mesoporous TiO 2 thin films
AU - Li, Hui
AU - Wang, Jinshu
AU - Li, Hongyi
AU - Yin, Shu
AU - Sato, Tsugio
N1 - Funding Information:
Acknowledgment This work was financially supported by the Program for New Century Excellent Talents in University and the Beijing New Century National Hundred, Thousand and Ten Thousand Talent Project, the Doctoral Scientific Research of Beijing University of Technology (no. 52009011200702), and the Younger Teacher Fund of Beijing University of Technology (no. 97009011200702).
PY - 2010/1
Y1 - 2010/1
N2 - Nitrogen and sulfur co-doped mesoporous TiO2 thin films were fabricated using thiourea as a doping resource by the combination of the sol-gel and evaporation-induced self-assembly (EISA) processes. Scanning electron microscopy (SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), N2 adsorption-desorption, and UV-vis spectra were performed to characterize the assynthesized mesoporous TiO2 materials. The XPS result shows that O-Ti-N and O-Ti-S bonds in the (S, N)-codoped mesoporous TiO2 were formed. The resultant mesoporous (S, N)-codoped TiO 2 exhibited anatase framework with a high porosity and a narrow pore distribution. After being illuminated for 3 h, methyl orange (MO) could be degraded completely by the co-doped sample under the ultraviolet irradiation, whereas mesoporous TiO2 film without doping could only degrade 60% MO. After being illuminated by visible light, the water contact angles of the mesoporous co-doped TiO2 samples decreased slightly, but the pure TiO2 mesoporous film exhibited no change in the hydrophilicity.
AB - Nitrogen and sulfur co-doped mesoporous TiO2 thin films were fabricated using thiourea as a doping resource by the combination of the sol-gel and evaporation-induced self-assembly (EISA) processes. Scanning electron microscopy (SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), N2 adsorption-desorption, and UV-vis spectra were performed to characterize the assynthesized mesoporous TiO2 materials. The XPS result shows that O-Ti-N and O-Ti-S bonds in the (S, N)-codoped mesoporous TiO2 were formed. The resultant mesoporous (S, N)-codoped TiO 2 exhibited anatase framework with a high porosity and a narrow pore distribution. After being illuminated for 3 h, methyl orange (MO) could be degraded completely by the co-doped sample under the ultraviolet irradiation, whereas mesoporous TiO2 film without doping could only degrade 60% MO. After being illuminated by visible light, the water contact angles of the mesoporous co-doped TiO2 samples decreased slightly, but the pure TiO2 mesoporous film exhibited no change in the hydrophilicity.
KW - (S, N)-codoped
KW - Mesoporous TiO
KW - Photocatalyst
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U2 - 10.1007/s11164-010-0111-z
DO - 10.1007/s11164-010-0111-z
M3 - Article
AN - SCOPUS:77952551260
VL - 36
SP - 27
EP - 37
JO - Research on Chemical Intermediates
JF - Research on Chemical Intermediates
SN - 0922-6168
IS - 1
ER -