TY - JOUR
T1 - Adsorption and reactions of CHCl3 on powdered TiO2
AU - Lin, Yi Shiue
AU - Lin, Yu Feng
AU - Chen, Meng Tso
AU - Lin, Jong Liang
PY - 2006/6
Y1 - 2006/6
N2 - The adsorption and reactions of CHCl3 on three commercially available TiO2 powders have been investigated by Fourier transform infrared spectroscopy in a gas-solid reaction system. Probably, owing to the difference in surface morphology, CHCl3 is weakly adsorbed on two of the three TiO2 samples at 35 °C. But, as the more reactive TiO2 is exposed to CHCl3 at 35 °C, the surface is found to be covered with CHCl3, HCOO, H2O, and CO. In addition to these surface species, gaseous HCl and CO are generated at higher temperatures. Photoirradiation of CHCl3 on TiO2 in the absence or presence of O2 causes the decomposition of CHCl 3. This photoprocess is enhanced in O2.
AB - The adsorption and reactions of CHCl3 on three commercially available TiO2 powders have been investigated by Fourier transform infrared spectroscopy in a gas-solid reaction system. Probably, owing to the difference in surface morphology, CHCl3 is weakly adsorbed on two of the three TiO2 samples at 35 °C. But, as the more reactive TiO2 is exposed to CHCl3 at 35 °C, the surface is found to be covered with CHCl3, HCOO, H2O, and CO. In addition to these surface species, gaseous HCl and CO are generated at higher temperatures. Photoirradiation of CHCl3 on TiO2 in the absence or presence of O2 causes the decomposition of CHCl 3. This photoprocess is enhanced in O2.
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U2 - 10.1002/jccs.200600074
DO - 10.1002/jccs.200600074
M3 - Article
AN - SCOPUS:34047128599
SN - 0009-4536
VL - 53
SP - 567
EP - 574
JO - Journal of the Chinese Chemical Society
JF - Journal of the Chinese Chemical Society
IS - 3
ER -