Synthesis, Characterization and Application of CuO/ZnO Nanocomposites

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Synthesis, Characterization and Application of CuO/ZnO Nanocomposites

December 31, 2020 Chemical Science 0

Industry-based coloured organic dyes are often non-biodegradable, producing high toxicity to marine organisms and significantly disrupting the water environment. Due to their intrinsic properties, semiconductor photocatalysts have been employed to degrade textile dye contaminants. Using the simple and low-cost mechanochemical combustion process, CuO/ZnO nanocomposite photocatalysts were synthesised. In order to classify the prepared oxides, X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), and Fourier Transform-Infrared (FT-IR) were used. XRD revealed that the prepared CuO/ZnO exhibits a crystal structure of wurtzite ZnO and that CuO and ZnO are made of as-synthesized composites. In the EDX spectrum, the high peaks of the Cu, Zn and O elements are exhibited. FTIR was able to observe the existence of various functional groups (-OH,-CH, Zn-O). In direct solar irradiation, the photocatalytic efficiency of CuO/ZnO nanocomposites has been investigated for the degradation of methylene blue (MB) aqueous solution. At 5 wt percent CuO/ZnO, MB degradation value was estimated to be 98 percent, after 150 minutes of solar irradiation. Therefore, the treatment of textile waste water with photodegradation using sunlight is a simple method, easy to manage and economical.

Author(s) Details

Dr. Md. Ashraful Islam Molla
Department of Applied Chemistry & Chemical Engineering, Faculty of Engineering & Technology, University of Dhaka, Dhaka–1000, Bangladesh.

Abrar Zadeed Ahmed
Department of Applied Chemistry & Chemical Engineering, Faculty of Engineering & Technology, University of Dhaka, Dhaka–1000, Bangladesh.

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