Abstract
Ordered mesoporous TiO2-ZrO2 materials were prepared by evaporation-induced self-assembly (EISA). The CeSn/TizZr10-zOx catalysts were prepared by impregnation method, and its catalytic performance was evaluated for the removal of 1,2-dichlorobenzene (o-DCB). The structure and properties of CeSn/TizZr10-zOx were characterized by N-2 adsorption-desorption, XRD, Raman, SEM, TEM, XPS and temperature programmed techniques. The results showed that Ce and Sn oxides were highly dispersed on TiO2-ZrO2 surface. Ti-Zr mixed oxides not only contributed to the formation of ordered mesopores, but also to the formation of strong acid sites. When the molar ratio of Ti/Zr was 6:4, the catalyst exhibited the excellent catalytic activity and outstanding stability and repeatability for the o-DCB elimination reaction because of its superior chlorine resistance. Furthermore, the reaction mechanism of o-DCB catalytic oxidation reduction was proposed based on surface lattice oxygen.

KeyWords Plus:CHLORINATED VOCS; LOW-TEMPERATURE; METAL-OXIDES; MIXED OXIDES; COMPOSITE OXIDE; TOTAL OXIDATION; DEEP OXIDATION; OXYGEN VACANCY; DOPED CEO2; COMBUSTION

Published in MICROPOROUS AND MESOPOROUS MATERIALS，Volume 302；10.1016/j.micromeso.2020.110214，AUG 1 2020