Fig. 2

(a) SEM images of the zinc oxide and iron oxide nanoparticles prepared with aqueous and 80% ethanolic SP extracts, (b) elemental composition of the SP-derived nanoparticles by EDX, and (c) spatial distribution of elements in SP-derived nanoparticles, and (d) XRD patterns of S. persica-based Fe2O3 and ZnO NPs.