Green magnetite nanoparticles (NPs) based on using Azadiratcha Leaves waste are synthesized, characterized, and employed for the degradation of a pollutant reference (Methylene Blue: MB) from aqueous solutions. The NPs are characterized using UV-visible spectroscopy, Energy Dispersive X-ray (EDX) and SEM. magnetite (Fe3O4) nanoparticles were designed as a highperformance nanomaterial for enhanced wastewater treatment. A consistent nanoscale structure with a high surface-to-volume ratio and inherent magnetic characteristics was produced by the controlled chemical synthesis of the nanoparticles. These characteristics facilitate quick and energy-efficient separation following treatment in addition to improving pollutant adsorption. In order to assess treatment effectiveness under environmentally relevant circumstances, wastewater samples obtained from the National Tropical Botanical Garden were used as a real-case study. The successful production of well-defined, highly reactive nanoparticles was validated by detailed characterization using UV-visible spectroscopy and scanning electron microscopy (SEM). Strong surface contacts and adsorption mechanisms enabled the produced magnetite nanoparticles to remove pollutants with surprising effectiveness. Significantly, Fe3O4's magnetic properties made it easy to recover and reuse the nanoparticles without significantly reducing their performance, underscoring its operational and economic benefits. This study offers a scalable and environmentally benign method for wastewater cleanup by bridging the gap between environmental engineering and nanotechnology. The results not only improve our knowledge of magnetite-based treatment systems, but they also establish this technology as a viable option for future industrial use and practical water purification applications. Research Objectives 1_To synthesize eco-friendly magnetite nanoparticles (Fe₃O₄ NPs) using plant extract as a natural reducing and stabilizing agent, avoiding the use of hazardous chemicals. 2_To characterize the synthesized magnetite nanoparticles using suitable analytical techniques in order to determine their structural, morphological, and optical properties. 3_To evaluate the efficiency of the green magnetite nanoparticles as a photocatalyst for the removal of dye from aqueous solutions, and to study the effect of parameters such as nanoparticle dosage, dye concentration, pH, and irradiation time on removal efficiency.
