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Iron oxide crystal size estimated using XRD spectra and the Scherrer equation and TEM images of iron oxide nanoparticles synthesized by the various methods (mean ± st. dev. n=3 for XRD and n=150 for TEM).
| Synthesis Method | XRD Size (nm) | TEM Size (nm) |
|---|---|---|
| two-step | 10.0 ± 2.1 | 14.5 ± 4.2 |
| semi-two-step | 11.2 ± 1.0 | 14.7 ± 4.6 |
| simultaneous semi-two-step | 12.1 ± 0.2 | 8.9 ± 2.2 |
| one-step (5 grams Dx) | 5.4 ± 1.9 | 6.8 ± 1.4 |
| one-step (1 gram Dx) | 12.4 ± 1.3 | 10.1 ± 3.1 |
