Fig. 1 shows TEM images of Fe3O4 nanoparticles synthesized using various concentrations of Fe(acac)3 precursor. The mean size of Fe3O4 nanoparticles was observed to increase with
increased concentrations of Fe(acac)3 precursor, which varied between 2 nm to 7 nm as the
concentration of Fe(acac)3 was increased from 0.1 mmol to 8 mmol. Table 1 shows the
summary of mean particles sizes synthesized at various concentrations of Fe(acac)3 precursor.