Preparation of Al2O3-supported nano-Cu2O catalysts for the oxidative treatment of industrial wastewater |
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| Authors: | W Chang Y Shen A Xie and W Tong |
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| Institution: | (1) School of Biological Sciences, University of the Punjab, New Campus, Lahore, 54590, Pakistan;(2) Department of Microbiology and Molecular Genetics, University of the Punjab, New Campus, Lahore, 54590, Pakistan;(3) Department of Zoology, GC University, Lahore, Pakistan; |
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| Abstract: | Cuprous oxide (Cu2O) nanoparticles supported on Al2O3 prepared using two different methods (hereafter referred to as catalyst I and II, respectively) were characterized by XRD
and TEM. The catalytic activities of catalyst I and II during the treatment of industrial wastewater were then investigated.
Specifically, the progress of the catalytic oxidation of industrial wastewater was observed by monitoring the time-dependent
change in the chemical oxygen demand (COD) of industrial wastewater when the catalysts were applied. The results indicated
that the catalytic activity of catalyst II was greater than that of catalyst I. Furthermore, under optimal conditions the
COD removal efficiency was 94.59%. Finally, the mechanism by which the oxidative degradation of the industrial wastewater
occurred could be explained based on a hydroxyl radical mechanism. |
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