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Magnetic Field Assisted Growth Of Highly Dense Alpha-Fe2o3 Single Crystal Nanosheets And Their Application In Water Treatment, Dong Lin, Biwei Deng, Stephen Sassman, Yaowu Hu, Sergey Suslov, Gary Cheng

dong lin

Highly dense 2D nanostructures are desirable in photocatalysis, water treatment and energy storage, due to their high surface to volume areas. This paper describes a novel approach combining thermal stress and magnetic force to generate highly dense alpha-Fe2O3 nanosheets on the surface of various iron substrates, including plates and powders. This technique involves the thermal oxidation of iron substrates on a hot plate with a magnetic field. The Lorentz force acting on the ions induced by the magnetic field facilitates the lateral growth of nanosheets. This effect results in a highly porous nanostructure consisting of dense 2D nanosheets with extremely …