Abstract

This study describes the synthesis of FeMnO3 magnetic nanocatalysts using a hydrothermal method. The nanocatalysts were used to degrade phenazopyridine hydrochloride (PhP) through the Sono-Fenton method, an advanced oxidation technique. The fabricated FeMnO3 nanocatalysts underwent various characterization techniques, including field emission scanning electron microscopy (FE-SEM), X-ray diffraction (XRD), fourier transform infrared spectroscopy (FT-IR), vibrating sample magnetometry (VSM), and Brunauer Emmett Teller (BET) analysis. Based on the XRD pattern and FE-SEM images, the cubic crystal structure and particle uniformity were confirmed. The catalytic performance of FeMnO3 nanocatalysts was examined in terms of their ability to remove PhP. Additionally, the impact of various parameters on the degradation rate of phenazopyridine was investigated. The optimal values for pH, nanocatalyst dosage, H2O2 concentration, and sonication time were found to be 10, 1 g/L, 1.2 mol/L, and 30 min, respectively. The degradation efficiency was eventually found to be 97 %. The most significant advantages of these nanocatalysts include their reusability without any significant decrease in reaction efficiency, rapid reaction time, ease of synthesis, and lack of requirement for complex systems.

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