In recent years, nano-sized transition metal oxides gained interest due to their exceptional physical, chemical, magnetic, and electronic properties. Scientist figured out that, the properties of the nano metal oxides are tunable by adding impurities. Due to variable properties, they find application in gas sensors, batteries, wastewater treatment, and catalysis. In this work, copper doped zinc oxide nano-composites were prepared by irradiating with microwave radiation -a green method. The obtained material is characterized by diffuse reflectance spectroscopy (DRS-UV), X-ray diffraction (XRD), Fourier transforms infrared spectroscopy (FTIR), energy dispersive X-ray analysis (EDX), and scanning electron microscopy (SEM). Photocatalytic properties were studied using dye degradation of methylene blue under Sunlight and catalyst show promising remedy for wastewater treatment.

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