Author: Chen C S Xie X D Cao S Y Liu T G Tsang Y H Xiao Y Liu Q C Yang X F Gong L
Publisher: IOP Publishing
E-ISSN: 1402-4896|90|2|25806-25812
ISSN: 1402-4896
Source: Physica Scripta, Vol.90, Iss.2, 2015-02, pp. : 25806-25812
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Abstract
In this study, the enhancement of photocatalytic activity of a graphene oxide/ZnO (GO/ZnO) nanohybrid was achieved via introducing Mg as a co-dopant element by the co-precipitation method. The Mg-doped ZnO nanoparticles were adsorbed on GO sheets. Compared with the catalyses with GO/ZnO nanohybrids, GO/Zn1−xMgxO nanohybrids exhibited better photocatalytic activity, in which the decomposition rate of methyl orange (MO) reached 100% within 60 min. The enhancement is attributed to Mg-doping and efficient charge transfer of the photogenerated electrons in the conduction band of ZnO to graphene.
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