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http://dx.doi.org/10.9713/kcer.2016.54.1.127

Synthesis, Characterization and Photocatalytic Activity of Reduced Graphene Oxide-Ce/ZnO Composites  

Zhang, Wenjun (School of Chemical Engineering and Technology, Hebei University of Technology)
Zhao, Jinfeng (School of Chemical Engineering and Technology, Hebei University of Technology)
Zou, Xuefeng (School of Chemical Engineering and Technology, Hebei University of Technology)
Publication Information
Korean Chemical Engineering Research / v.54, no.1, 2016 , pp. 127-134 More about this Journal
Abstract
A series of Ce-doped ZnO (Ce/ZnO) nanostructures were fabricated using the co-precipitation method, then a simply nontoxic hydrothermal approach was proposed for preparation of reduced graphene oxide (rGO)-Ce/ZnO composites. The synthesized composites were investigated by powder X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR), photoluminescence spectroscopy (PL), electrochemical impedance spectroscopy (EIS), UV-vis diffuse reflectance spectroscopy (DRS) techniques and Raman pattern. The as-synthesized rGO-Ce/ZnO composites showed high photodecomposition efficiency in comparison with the rGO-ZnO, Ce/ZnO, pure ZnO under UV, visible-light and sunlight irradiation. The degradation of methylene blue (MB) (10 mg/L, 100ml) by 95.8% within 60 min by using rGO-2 (10 mg) under sunlight irradiation was observed. The repeated use of the rGO-2 was investigated, and the results showed almost no decay in the catalytic activity.
Keywords
rGO; Ce/ZnO; Photocatalysis; MB;
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Times Cited By KSCI : 3  (Citation Analysis)
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