Fig. 7

Nanosized ZnFe2O4 oxide particles isothermally heated at about 950 °C for 2 h observed by SEM, SEM/ EDX methods (Scale bar: 20 μm).
Nanosized ZnFe2O4 oxide particles isothermally heated at about 950 °C for 2 h observed by SEM, SEM/ EDX methods (Scale bar: 20 μm).