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چکیده
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The contamination of water resources by industrial effluents, including organic dyes from sectors like textile, pharmaceutical, cosmetic, and paper, poses risks to human well-being and the ecological system. These dyes, which account for a significant portion of wastewater, contribute to concerns due to their mutagenic, carcinogenic, genotoxic, and teratogenic effects. Additionally, the coloration of water hampers sunlight penetration, reduces oxygen levels, disrupts photosynthesis, and negatively impacts aquatic life and the surrounding ecosystem [1,2]. Consequently, researchers have been actively seeking effective, low-cost, and reliable techniques for the removal of organic dyes from wastewater. Magnetic photocatalysts provide the advantage of recyclability by integrating catalytic properties with magnetism, enabling their effortless retrieval from the treated solution using an external magnetic field Among various magnetic nanoparticles, ferrite nanoparticles have garnered significant interest in the field of photocatalysis due to their electroconductivity, paramagnetic, optical, and chemical properties, high specific surface area, and environmental friendliness [3]. In this study, magnetic copper-magnesium ferrite nanoparticles were synthesized as an effective and recyclable photocatalyst using a sol-gel method. Characterization of the synthesized materials included XRD, FTIR, BET, FESEM, TEM, EDS, PL, and UV-Vis DRS analyses. The sample demonstrated a higher BET surface area due to the synergistic effect and interface between copper and magnesium metals. The photocatalyst effectively degraded malachite green dye under visible light irradiation. Notably, the magnetic nanoparticles could be easily separated using an external magnet, while the photocatalyst maintained its stable and high photocatalytic performance even after five consecutive runs under the same optimized conditions.
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