Preparation and characteristics of Fe3O4 magnetic thin films plated on hollow glass spheres

The surface of hollow glass spheres was deposited with a layer of Fe304 film in the open air without using ultrasound and toxic reducing reagent NaNO2; the magnetic films of Fe3O4 were characterized by XRD, SEM and EDS. The intactness of the films was remarkably affected by temperature; it is favorable for the hollow glass spheres to be encapsulated completely by the Fe3O4 magnetic films as plating temperature increased at pH 6.7. The films exhibited ferromagnetic behavior. (c) 2006 Elsevier B.V All rights reserved.