Journal of Nanomaterials / 2016 / Article / Fig 3

Research Article

Synthesis and Characterization of Nontoxic Hollow Iron Oxide (-) Nanoparticles Using a Simple Hydrothermal Strategy

Figure 3

SEM images showing the hollow spheres of α-Fe2O3 at 24 h reaction time after calcination: (a) dispersion in ethanol, (b) dispersion in water, (c) high magnification image of sphere showing α-Fe2O3 shell showing the inherent porosity, and (d) EDX mapping showing the Fe content.
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