Degradation of dyes using biologically synthesized iron oxide nanoparticles by manilkara zapota leaves extract

In this work, we obtained iron nanoparticles from the aqueous extract of the leaves of M. zapota and protected the environment by decreasing toxic chemicals and eliminating biological risks in biomedical applications. Different concentrations of leaf extract(0.25 g/mL, 0.125 g/mL, 0.0625 g/mL, and 0.0312 g/mL)were used and synthesized iron oxide nanoparticles. The results revealed a dependence on the particle size of Fe2O3 NP and synthesis conditions. The Fe2O3 NP samples UV–visible absorption spectra show surface plasmon (SPR) bands around 355 nm, 344 nm, 346 nm, and 344 nm at different extract concentrations. Different structural, elemental, and optical properties were analyzed by various techniques such as XRD, SEM-EDX, and FTIR. The photocatalytic activity of the produced iron nanoparticles was evaluated for the degradation of Methylene blue dye under solar irradiation. At 8 hours of exposure, green-produced iron nanoparticles efficiently destroyed the dye by almost 53.57 percent.