3 years ago

Strengthening the Catalytic Activity for Ozonation of Cu/Al2O3 by an Electroless Plating–Calcination Process

Strengthening the Catalytic Activity for Ozonation
of Cu/Al2O3 by an Electroless Plating–Calcination
Bo Lai, Jun Li, Jiali Peng, Fangzhou Ji, Yi Ren
A new method of electroless plating–calcination was developed to prepare Cu/Al2O3 with high catalytic activity and long operational life for catalytic ozonation. First, the effects of key preparation parameters on the catalytic activity of new Cu/Al2O3 were investigated. In addition, new Cu/Al2O3 prepared by electroless plating–calcination and conventional Cu/Al2O3 prepared by impregnation–calcination were characterized. The results show that when Cu/Al2O3 were prepared by electroless plating–calcination, copper oxides were uniformly and densely deposited on the surface of Al2O3, and the copper compounds consist of CuO. Furthermore, the catalytic activity and operational life of the two kinds of Cu/Al2O3 were also investigated comparatively. The results confirmed the advantage of the new method for the preparation of Cu/Al2O3 for catalytic ozonation. Finally, the degradation pathway was proposed. It can be concluded that electroless plating–calcination is a promising technology to prepare the robust Cu/Al2O3 with high catalytic activity for the decomposition of ozone.

Publisher URL: http://dx.doi.org/10.1021/acs.iecr.7b04286

DOI: 10.1021/acs.iecr.7b04286

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