초록 |
Iron oxides play a vital role in biological processes. Among them, magnetite is a mineral with the chemical formula Fe3O4 (Fe(II)[Fe(III)]2O4), which is the most magnetic of all the minerals on Earth. Some reported studies did not always have superb control over well-defined morphologies, sizes, and crystal phases. Moreover, few studies have focused on synthesizing anisotropic magnetite nanocrystals. Herein, we report an optimized hydrothermal method to synthesize anisotropic Fe3O4 nanosheets. As prepared Fe3O4 nanosheets have been characterized employing various materials characterization methods, including transmission electron microscopy, Field-emission scanning electron microscopy, powder X-ray diffraction, and atomic force microscopy. Results of structural and spectroscopic studies on the formation of ultrathin anisotropic Fe3O4 nanosheets, as well as the effects of solution compositions and reaction conditions, will be discussed together in the presentation. |