The Affects of Ce Doping Cr\(_2\)O\(_3\) Based Catalysts Supported on Activated Carbon for 1,2-Dichloroethane Abatement
Tabet Tsiankoraka Ahmadaly Adam *
School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing-210094, PR, China.
Pengfei Zhu
School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing-210094, PR, China.
Na Li
School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing-210094, PR, China.
Zhaoxia Hu
School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing-210094, PR, China.
Shouwen Chen *
School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing-210094, PR, China.
*Author to whom correspondence should be addressed.
Abstract
Hydrothermal method is used to prepare activated carbon (AC) supported chromium-based catalysts for the catalytic combustion of 1,2-dichloroethane (DCE). The physicochemical properties relating catalysts are evaluated by several characterization techniques such as XRD, SEM, XPS, N2 adsorption-desorption isotherms, H2-TPR and NH3-TPR. The outcomes demonstrated that the Cr2O3 is the perfect targeted base catalyst adding to the facts that the hydrothermal approach is an appropriate way to create catalysts with superior properties. The textural characteristics, reducibility, and acidity of the Cr-based catalysts were all enhanced by the addition of cerium (Ce) and AC. Nevertheless, the research shows how crucial the Ce doping amount is for adjusting the physicochemical characteristics and catalytic efficacy of Cr-based catalysts. The catalyst 20Ce-Cr/AC has the maximum catalytic activity when it came to DCE combustion, where its T50 and T90 attaining of 247°C and 269.5°C, correspondingly. This is explained by the ideal Ce doping level, which improves the redox characteristics and revealed more active sites.
Keywords: Transition metals, Ce-Cr/AC, CeO\(_2\)-Cr\(_3\)O\(_4\), catalytic performance, DCE oxidation, redox properties