Abstract
A series of CuO/MnOx composites has been synthesized by integrating the incipient wetness impregnation method and the heat treatment of Mn-MIL-100. The catalytic activity has been tested by chlorobenzene (CB) degradation. The obtained catalysts were characterized by XRD, Raman, TG, TEM, XPS, N2 adsorption–desorption, H2-TPR and TPSR-MS. The results revealed that the catalytic activity of MnOx improved remarkably after loading Cu, particularly the catalyst with 30 wt.% CuO (30Cu/MnOx) exhibited the best catalytic activity in CB combustion, whose T90% was 290 °C at GHSV of 15,000 h−1. The excellent catalytic performance of 30Cu/MnOx could be attributed to the abundant mesoporous structure, improved reducibility, surface-enriched Mn4+ species and active adsorbed oxygen species. Moreover, the TPSR-MS data showed that 30Cu/MnOx exhibited higher dechlorination ability and better resistance to chlorine poisoning during CB degradation process. This study may provide a new strategy for develo** mixed metal oxides derived from MOF serving as high-performance catalysts in the catalytic combustion removal of VOCs.
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We gratefully acknowledge the funding support of the National Natural Science Foundation of China (No. 21603168) and Scientific Research Foundation of Wuhan Institute of Technology (K201515).
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Chen, X., He, F. & Liu, S. CuO/MnOx composites obtained from Mn-MIL-100 precursors as efficient catalysts for the catalytic combustion of chlorobenzene. Reac Kinet Mech Cat 130, 1063–1076 (2020). https://doi.org/10.1007/s11144-020-01816-6
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DOI: https://doi.org/10.1007/s11144-020-01816-6