Preparation and photocatalytic activity of multi-walled carbon nanotubes/Mg-doped ZnO nanohybrids
Abstract
Multi-walled carbon nanotubes/Mg-doped ZnO (MWNTs/Zn1-xMgxO) nanohybrids were prepared by co-precipitation method, and their photocatalytic activity for methyl orange (MO) was studied. Experimental results showed that Mg-doped ZnO nanoparticles were successfully deposited on the surface of MWNTs under annealing at 450 °C and 550 °C. The resultant MWNTs/Zn0.9Mg0.1O nanohybrids had better photocatalytic activity for degradation of methyl orange than pure ZnO: the rates of MO photodegradation were 100 % and 30 % for 1 h, respectively. The enhancement in the photocatalytic activity was attributed to the excellent electronic properties of MWNTs and Mg-doping.
© 2016 C. S. Chen, X. D. Xie, S. Y. Cao, T. G. Liu, L. W. Lin, X. H. Chen, Q. C. Liu, J. C. Kuang, Y. Xiao, published by Wroclaw University of Science and Technology
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