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.