Fig. 4

FESEM images (a, b) and particle size distribution histograms (c, d) of iron oxide nanoparticles (magnetite and hematite) synthesized using Moringa leaf extract and calcined at 300 °C (Mo3) and 600 °C (Mo6).

FESEM images (a, b) and particle size distribution histograms (c, d) of iron oxide nanoparticles (magnetite and hematite) synthesized using Moringa leaf extract and calcined at 300 °C (Mo3) and 600 °C (Mo6).