Abstract
Herein, we present a novel approach for the synthesis of ZnO nanoparticles (ZnO NPs) using a non-thermal plasma source generated by the gliding arc discharge-air system. The effect of discharge time on the physical and optical properties, as well as the photocatalytic performance of the as-fabricated ZnO NPs, was investigated. The characterization techniques revealed that the as-synthesized ZnO exhibit hexagonal Wurtzite structure, with a wide energy gap and peak intensities of UV–vis absorption with longer discharge times. A decrease in particle size from 29 to 25 nm was also observed with increasing discharge time, while all samples were thermally stable between 25 and 700 °C. The photocatalytic performance of the ZnO NPs was evaluated by degrading Congo Red (CR) dye with a concentration of 20 ppm under sunlight at a dose of 1 mg/mL. The as-synthesized ZnO NPs revealed exceptional photocatalytic performance by degrading ~ 97% of CR dye after irradiation for 150 min. This work presents an easy and simple method for synthesizing NPs in a short time and pave the way for other potential ideas on the application of plasma gliding arc discharge.
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Ridha Messai, Mohammed Fouad Ferhat, Abdelghani Serouti, and Bounedjar Nourelhouda: writing—original draft, conceptualization, investigation, data curation, and methodology; Muhammad Humayun, Nassiba Allag, Abdelhalim Zoukel, Mouffok Redouane Ghezzar, and Mohamed Bououdina: writing—review and editing, resources, and funding acquisition.
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Messai, R., Ferhat, M.F., Serouti, A. et al. Rapid synthesis of ZnO nanoparticles via gliding arc discharge: unveiling the impact of discharge time on particle properties and photocatalytic performance. Environ Sci Pollut Res (2024). https://doi.org/10.1007/s11356-024-33442-3
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DOI: https://doi.org/10.1007/s11356-024-33442-3