Visible light driven α-Fe2O3 nanorod photocatalyst.

α-Fe2O3 nanorods are controlled prepared by a facile hydrothermal process followed by a calcination treatment. The experiment results indicate that the morphology of the as-obtained product depends greatly on the quantity of NaOH. The photocatalytic performances of the as-prepared samples were evaluated by photocatalytic decolorization of Congo red solution at ambient temperature. The results indicate that the photocatalytic activity of the α-Fe2O3 nanorods is superior to α-Fe2O3 nanoparticles and microplates, revealing the versatile potential applications of the product in wastewater purifications.