For the first time, Cu2V2O7/graphene nanocomposite with 20–30 nm in size has been prepared by solid state decomposition microwave method in short time. The obtained nanocomposite have been fully characterized by X-ray diffraction (XRD), Fourier-transformed infrared spectroscopy (FT-IR), field emission scanning electron microscopy (FE-SEM), energy-dispersive X-ray spectroscopy (EDX), transmission electron microscopy (TEM), vibrating sample magnetometer (VSM), and UV-Vis spectroscopy. The photocatalytic property of the nanocomposite has been investigated for degradation of methylene blue (MB) and methyl orange (MO) dye pollutants in aqueous solution under solar light (average light intensity of 180 mW cm-2) and ultrasound (250 W) irradiation at room temperature. The band gap of the Cu2V2O7/graphene nanocomposite is found to be 4.4 eV.

中文翻译：

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快速简便的微波辅助合成 Cu2V2O7/石墨烯纳米复合材料作为降解有机染料的新型催化剂

首次采用固态分解微波法在短时间内制备出尺寸为20~30 nm的Cu2V2O7/石墨烯纳米复合材料。所获得的纳米复合材料已通过 X 射线衍射 (XRD)、傅里叶变换红外光谱 (FT-IR)、场发射扫描电子显微镜 (FE-SEM)、能量色散 X 射线光谱 (EDX)、透射电子显微镜 (TEM)、振动样品磁力计 (VSM) 和紫外-可见光谱。研究了纳米复合材料在太阳光（平均光强为 180 mW cm-2）和超声波（250 W）照射下降解水溶液中亚甲基蓝（MB）和甲基橙（MO）染料污染物的光催化性能。室内温度。Cu2V2O7/石墨烯纳米复合材料的带隙为 4.4 eV。