In this study, production and partial photocatalytic properties of the Graphene-ZnO composites were investigated. Graphene nano layers used as reinforcement element in the composite were produced via liquid phase exfoliation method. These nano layers were added during the sol-gel process to ensure homogeneous mixing of ZnO with the graphene. In some regions, graphene layers were observed to be surrounded by ZnO particles. Characterization of the synthesized graphene was carried out via transmission electron microscopy (TEM) and X-ray analysis. Photocatalytic degradation of the RR195 colorant was carried out by using ZnO-graphene composites. As a result, with increasing concentration of Graphene–ZnO composite in the environment, the color removal efficiency increased to 10.0 g/L Graphene–ZnO composition concentration. A similar propensity was observed for TOC removal. At the end of the photocatalytic reaction (90 min), in the environment using 10.0 g/L Graphene–ZnO composition, maximum color and TOC removal efficiencies were measured as 98.50% and 89.3%, respectively.
Primary Language | Turkish |
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Subjects | Architecture, Engineering |
Journal Section | Articles |
Authors | |
Publication Date | September 30, 2018 |
Published in Issue | Year 2018 Volume: 33 Issue: 3 |