Solvothermal synthesis and characterization of sandwich-like graphene/ZnO nanocomposites |
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Authors: | Jili Wu Lei Jiang Kangmin Chen |
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Institution: | a School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China b School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China |
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Abstract: | Graphene-based nanocomposites are emerging as a new class of materials that hold promise for many applications. In this paper, we present a general approach for the preparation of sandwich-like graphene/ZnO nanocomposites in ethylene glycol (EG) medium using graphene oxide as a precursor of graphene and zinc acetylacetonate as a single-source precursor of zinc oxide. The samples were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), Fourier transform infrared (FT-IR) spectroscopy, ultraviolet-visible (UV-vis) spectroscopy and thermogravimetry analysis. It was shown that the as-formed ZnO nanoparticles with a diameter of about 5 nm were densely and uniformly deposited on both surfaces of the graphene sheets to form a sandwich-like composite structure and as a result, the restacking of the as-reduced graphene sheets was effectively prevented. The ZnO-coated graphene nanocomposites can be expected to effectively improve the photocatalysis and sensing properties of ZnO and would be promising for practical applications in future nanotechnology. |
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Keywords: | Graphene Zinc oxide Synthesis Nanocomposite |
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