TY - JOUR
T1 - Photo-catalytic degradation of dimethyl disulfide on S and metal-ions co-doped TiO2 under visible-light irradiation
AU - Lin, Yi Hsing
AU - Tseng, Ting Ke
AU - Chu, Hsin
N1 - Funding Information:
This study was funded in part by the National Science Council, Republic of China , under grant NSC 100-2221-E-006-033 .
PY - 2014
Y1 - 2014
N2 - The sulfur and transition metal co-doped TiO2 catalysts were prepared by a sol-gel method. The physical and chemical properties of these photo-catalysts were characterized by thermo-gravimetric/differential-thermal analysis, X-ray diffraction, X-ray photoelectron spectroscopy, UV-vis, and Fourier transform-infrared spectroscopy. Compared to pure TiO2 and S/TiO2, sulfur and transition metal co-doped TiO2 catalysts have smaller crystal size and shift to visible-light absorption region. The XPS spectra confirm that V4+, Fe3+, and S 6+ are successfully doped into the lattice of TiO2, but Zn2+ is adsorbed on the surface of TiO2. S 0.05Zn0.001/TiO2 shows the best photocatalytic activity and S-VOCs tolerance for the degradation of dimethyl disulfide under visible irradiation. Several possible mechanisms have been developed for co-doped TiO2 under visible-light in this study.
AB - The sulfur and transition metal co-doped TiO2 catalysts were prepared by a sol-gel method. The physical and chemical properties of these photo-catalysts were characterized by thermo-gravimetric/differential-thermal analysis, X-ray diffraction, X-ray photoelectron spectroscopy, UV-vis, and Fourier transform-infrared spectroscopy. Compared to pure TiO2 and S/TiO2, sulfur and transition metal co-doped TiO2 catalysts have smaller crystal size and shift to visible-light absorption region. The XPS spectra confirm that V4+, Fe3+, and S 6+ are successfully doped into the lattice of TiO2, but Zn2+ is adsorbed on the surface of TiO2. S 0.05Zn0.001/TiO2 shows the best photocatalytic activity and S-VOCs tolerance for the degradation of dimethyl disulfide under visible irradiation. Several possible mechanisms have been developed for co-doped TiO2 under visible-light in this study.
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U2 - 10.1016/j.apcata.2013.10.006
DO - 10.1016/j.apcata.2013.10.006
M3 - Article
AN - SCOPUS:84886228766
SN - 0926-860X
VL - 469
SP - 221
EP - 228
JO - Applied Catalysis A: General
JF - Applied Catalysis A: General
ER -