One-pot synthesis of α-Fe2O3 nanospheres by solvothermal method

We have successfully prepared alpha-Fe2O3 nanospheres by solvothermal method using 2-butanone and water mixture solvent for the first time, which were about 100 nm in diameter and composed of very small nanoparticles. The as-prepared samples were characterized using X-ray diffraction, scanning electron microscopy, and transmission electron microscopy. The results showed that the product was alpha-Fe2O3 nanosphere, and the temperature was an important factor on the formation of alpha-Fe2O3 nanospheres.