Photocatalytic, Sonocatalytic, and Photosonocatalytic of Fe<subscript>3</subscript>O<subscript>4</subscript>/CuO/ZnO Nanocomposites With Addition of 2 Different Types of Carbon.

A nanocomposite catalyst containing zinc oxide (ZnO), copper oxide (CuO), iron oxide (Fe 3 O 4 ) and graphene was synthesized using a combined sol-gel/hydrothermal method in which we used two different types of graphene such as NGP and graphene. The as-synthesized samples were characterized by X-ray diffraction (XRD), energy dispersive Xray (EDX), transmission electron microscopy (TEM), Fourier transform infra-red (FTIR) and vibrating sample magnetometer (VSM). We evaluated the photocatalysis, sonocatalysis, and photosonocatalysis of Fe 3 O 4 /CuO/ZnO, Fe 3 O 4 /CuOZnO/NGP and Fe 3 O 4 /CuO/ZnO/Graphene on the degradation of Methylene Blue (MB) and found that the Fe 3 O 4 /CuO/ZnO/Graphene exhibits catalytic activity higher than Fe 3 O 4 /CuO/ZnO/NGP and Fe 3 O 4 /CuO/ZnO. The effect of various scavengers has also been studied. Furthermore, all prepared nanocomposites could be used as a convenient recyclable catalyst because of their magnetic properties. [ABSTRACT FROM AUTHOR]

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