Research Article
Synthesis of Iron Oxide Nanoparticles Using Isobutanol
Figure 7
SEM micrographs of iron oxide samples: (a) S9 (0.09 M FeCl2·4H2O with NH4OH (28%) at 75°C); (b) S10 (0.09 M FeCl2·4H2O with NH4OH (28%) at 75°C and calcined at 530°C for 2 h); (c) S11 (0.09 M FeCl2·4H2O with NH4OH (28%) at 75°C and calcined at 600°C for 5 h); (d) S12 (0.1 M Fe(NO3)3·9H2O with NH4OH at 75°C); (e) S13 (0.1 M Fe(NO3)3·9H2O with NH4OH at 75°C and calcined at 400°C for 100 min); (f) S14 (0.1 M Fe(NO3)3·9H2O with NH4OH at 75°C and calcined at 600°C for 100 min).