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Synthetic effect of supports in Cu-Mn–doped oxide catalysts for promoting ozone decomposition under humid environment
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Synthetic effect of supports in Cu-Mn–doped oxide catalysts for promoting ozone decomposition under humid environment
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Journal Article
Synthetic effect of supports in Cu-Mn–doped oxide catalysts for promoting ozone decomposition under humid environment
2023
Overview
The escalating levels of surface ozone concentration pose detrimental effects on public health and the environment. Catalytic decomposition presents an optimal solution for surface ozone removal. Nevertheless, catalyst still encounters challenges such as poisoning and deactivation in the high humidity environment. The influence of support on catalytic ozone decomposition was examined at a gas hourly space velocity of 300 L·g
−1
·h
−1
and 85% relative humidity under ambient temperature using Cu-Mn–doped oxide catalysts synthesized via a straightforward coprecipitation method. Notably, the Cu-Mn/SiO
2
catalyst exhibited remarkable performance on ozone decomposition, achieving 98% ozone conversion and stability for 10 h. Further characterization analysis indicated that the catalyst’s enhanced water resistance and activity could be attributed to factors such as an increased number of active sites, a large surface area, abundant active oxygen species, and a lower Mn oxidation state. The catalytic environment created by mixed oxides can offer a clearer understanding of their synergistic effects on catalytic ozone decomposition, providing significant insights into the development of water-resistant catalysts with superior performance.
Graphical Abstract
Publisher
Springer Berlin Heidelberg,Springer Nature B.V
