Abstract
ZIF-8 composites with Mn (Mn-ZIF-8 & Mn/ZIF-8) were prepared by two methods for the complete catalytic oxidation of toluene. The results revealed that catalytic activity increased with the increasing content of manganese, and the activities of the two series composites were different from each other. The Mn[Formula: see text]-ZIF-8 prepared by the methanol thermal method showed the best catalytic performance, which had the lowest T[Formula: see text] of toluene conversion, compared with the series of Mn/ZIF-8 catalysts. The resulting composites were characterized by X-ray diffraction (XRD), Brunauer–Emmett–Teller (BET), scanning electron microscopy (SEM), thermogravimetric analysis (TG) and X-ray photoelectron spectroscopy (XPS). It was concluded that Mn, as the active species, might partly replace Zn in the frame of Mn-ZIF-8 for the catalytic oxidation of toluene at lower temperatures.
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