Mustansiriyah Journal of Pure and Applied Sciences

synthesis of zinc oxide nanoparticles using cumin and Curcuma, and its application towards photocatalytic degradation

Nedal Hussain

Mustansiriyah University

DOI: https://doi.org/10.47831/mjpas.v3i3.283

Keywords: ZnO, photocatalytic, degradation, Green synthesis, methylene blue

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Abstract

Zinc oxide nanoparticles (ZnO NPs) were successfully synthesized by a green method using cumin and Curcuma and zinc acetate dihydrate [Zn (CH3COO)2. 2H2O]as salt precursors .   The particle size and  phase structure of zinc oxide were determined by X-ray   diffraction, high-resolution transmission electron microscopy and field emission scanning electron microscopy. The produced zinc oxide nano particles are crystalline with a grain size of 24–50 nm. Energy Dispersive Spectrum (EDX) results affect the composition of Zinc and Oxygen, giving high energy signals of 76.9.4% and 23.1% for   Oxygen and zinc, respectively. (FT-IR) spectroscopic analysis shows the absorption peak of Zinc and oxygen Zn–O bonding between 400 and 600 cm-1.The different characterization methods carried out prove the formation of nano Zinc oxide.The  ZnO NPs were used as catalysts for the photodegradation of methylene blue under visible light radiation. The results indicate that the prepared ZnO material excellently removed MB methlyene blue  with efficiencies of  82.78%, after 150 min, This green method of synthesis was found to be  eco-friendly .