Complete oxidation of 1,2-dichloroethane over highly efficient Cu/Al-Ti composite metal oxide catalyst

Abstract

Chlorinated volatile organic compounds (CVOCs) have received attention as hazardous air contaminants for decades, and a complete oxidation process of CVOCs using an efficient catalyst should be most effective to handle such hazardous materials. A series of CuOx-supported on Al-Ti mixed oxide catalysts were prepared by sol-gel method for the mixed oxide support and followed by wet impregnation method for the CuOx nanoparticles formation on the support. These Cu/Al-Ti composite catalysts were investigated for catalytic complete oxidation of 1,2-dichloroethane (DCE), which is one representative CVOCs. Through combining each transition metal components that having different catalytic properties with appropriate composition, excellent catalytic performances in terms of activity and selectivity for the catalytic oxidation of DCE were obtained on the resultant Cu/Al-Ti composite catalysts. The design strategy of composite catalyst studied in this work should suggest the way for efficient and sustainable removal of CVOCs using nonprecious catalytic materials.