Synthesis and Photocatalytic Performance of RGO/ZnO Nanorod Composites

• Published in: Cai liao gong cheng = Journal of materials engineering Vol. 44; no. 12; pp. 48 - 53
• Main Authors: LU Jia, WANG Hui-hu, DONG Yi-fan, CHANG Ying, MA Xin-guo, DONG Shi-jie
• Format: Journal Article
• Language: Chinese
• Published: Journal of Materials Engineering 20.12.2016
• Subjects: methyl orange; photocatalysis; reduced graphene oxide; ZnO
• ISSN: 1001-4381; 1001-4381
• DOI: 10.11868/j.issn.1001-4381.2016.12.008

ZnO nanorods and RGO/ZnO nanorods composites were prepared by hydrothermal method. The influence of RGO content on the photocatalytic activity of RGO/ZnO nanorods composites was studied. ZnO nanorods and RGO/ZnO nanocomposites were characterized by X-ray diffraction (XRD), field emission electron microscopy (FESEM), X-ray photoelectron spectroscopy (XPS) and diffuse reflectance UV-visible absorption spectroscopy techniques. The results show that RGO/ZnO samples are synthesized successfully. With different additions of GO, the RGO/ZnO samples obtained exhibit different absorption characteristics in visible light region. The photocatalytic results of using methyl orange (MO) as the simulated pollutant show that RGO/ZnO nanorods composites exhibit high degradation efficiency under UV-Vis light illumination. The highest photocatalytic performance is obtained for RGO/ZnO composites when the mass ratio of RGO to ZnO is 3%. MO is almost completely degraded in 120min. RGO/ZnO also shows the visible-light-driven photo