Removal of ethylene bisdithiocarbamate fungicides in wastewater and agricultural runoff by zinc oxide nanoparticles before analysis by HPLC and UV-Vis spectroscopy

Article Type:
Research/Original Article (بدون رتبه معتبر)

This s tudy developed an applied method based on the degradation to remove ethylene bisdithiocarbamate (EBDC) fungicides from was tewater and agricultural runoff by zinc oxide nanoparticles (ZnONPs). The synthesized ZnONPs were characterized using XRD for material crys tallinity, scanning electron microscope (SEM) and particle size analysis (PSA) for surface s tructure, morphology and particle size (nm), respectively. The energy-dispersive X-ray spectroscopy (EDX) spectra confirmed the presence of zinc and showed that the synthesized zinc oxide nanoparticles were pure. Determination of the adsorption and photocatalytic degradation of Mancozeb (MCZ) fungicides based on ZnONPs was performed. Different amounts of ZnONPs were loaded into an MCZ fungicide solution in different concentrations. High-performance liquid chromatography (HPLC) and UV-Vis spectroscopy were used to determine the dithiocarbamate residue and the degradation efficiency of the synthesized particles. The particle size dis tribution of the synthesized ZnONPs was found to be in the range of 50-95 nm. At optimum conditions, with a ZnONPs dosage of 10 mg, (MCZ) fungicide concentration of 9.37 mg L-1, and a duration of 60 minutes, the degradation efficiency was surpassed at more than 95%. Additionally, the nanoparticles demons trated excellent reusability and maintained efficient activity for up to three cycles. It is crucial and significant to keep on exploring the intrinsic capabilities of abundant metal oxides like zinc oxide nanoparticles for environmental remediation and other applications.

Analytical Methods in Environmental Chemistry Journal, Volume:6 Issue: 4, Dec 2023
93 to 106  
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