Synthesis and Characterization of Zinc, Iron, Copper, and Manganese Oxides Nanoparticles for Possible Application as Plant Fertilizers

Figure 2

Transmission electron microscopy (TEM) of the synthesized particles: (a) ZnO < 20 nm; (b) Mn₃O₄ < 20 nm; (c) Fe₃O₄ < 20 nm; (d) CuO with length >100 nm and width <50 nm.

(a)

(b)

(c)

(d)