Journal of Nanomaterials / 2016 / Article / Fig 5

Research Article

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

Figure 5

Hollow iron oxide NPs after calcination at 550°C for 4 h: (a) X-ray diffraction (XRD) patterns and (b) FTIR patterns.

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