Facile synthesis of Ag-modified manganese oxide for effective catalytic ozone decomposition.

Author(s) Li, X.; Ma, J.; Zhang, C.; Zhang, R.; He, H.
Journal J Environ Sci (China)
Date Published 2019 Jun
Abstract

O decomposition catalysts with excellent performance still need to be developed. In this study, Ag-modified manganese oxides (AgMnO) were synthesized by a simple co-precipitation method. The effect of calcination temperature on the activity of MnO and AgMnO catalysts was investigated. The effect of the amount of Ag addition on the activity and structure of the catalysts was further studied by activity testing and characterization by a variety of techniques. The activity of 8%AgMnO for ozone decomposition was significantly enhanced due to the formation of the AgMnO structure, indicating that this phase has excellent performance for ozone decomposition. The weight content of AgMnO in the 8%AgMnO catalyst was only about 33.76%, which further indicates the excellent performance of the AgMnO phase for ozone decomposition. The H temperature programmed reduction (H-TPR) results indicated that the reducibility of the catalysts increased due to the formation of the AgMnO structure. This study provides guidance for a follow-up study on Ag-modified manganese oxide catalysts for ozone decomposition.

DOI 10.1016/j.jes.2018.12.008
Keywords Catalysis; Follow-Up Studies; Manganese Compounds; Models, Chemical; Oxidation-Reduction; Oxides; Ozone; Silicon Dioxide; Silver; Temperature
ISSN 1001-0742
Citation Li X, Ma J, Zhang C, Zhang R, He H. Facile synthesis of Ag-modified manganese oxide for effective catalytic ozone decomposition. J Environ Sci (China). 2019;80:159-168.

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