DOI: https://doi.org/10.36347/sjet.2025.v13i02.005

Pages: 104-115

Fe₃O₄-based nanocomposites were synthesized using iron salts, glucose, and ammonium hydroxide for catalytic adsorption of methyl orange and malachite green dyes from wastewater. The nanocomposites were characterized using UV-VIS Spectroscopy, SEM, XRD, and FTIR to analyze their surface morphology, crystallinity, and functional groups. Results showed high adsorption efficiency, with 83.9% removal of methyl orange and 61-75% removal of malachite green. The exceptional properties of Fe₃O₄ nanocomposites, including superparamagnetic, large surface area, and low toxicity, contribute to their effectiveness in dye removal. Multi-cycle usability and regeneration with ethanol or acetone improved adsorption performance, making them a cost-effective and sustainable solution. The dye-loaded composites were properly washed with distilled water and reused, maintaining adsorption efficiency. Their excellent recyclability and adsorption capabilities make Fe₃O₄ nanocomposites a viable option for scalable wastewater treatment applications, offering an efficient and environmentally friendly approach for dye removal.