Direct hydrothermal synthesis and magnetic property of titanate nanotubes doped magnetic metal ions

作者:Wang Meili; Song Gongbao; Li Jian; Miao Landong; Zhang Baoshu
来源:Journal of University of Science and Technology Beijing, 2008, 15(5): 644-648.
DOI:10.1016/S1005-8850(08)60120-6

摘要

Pure titanate nanotubes and titanate, nanotubes doped with Fe3+/Ni2+/Mn2+ ions were synthesized by the hydrothermal method. In this process, titanate nanotubes were first prepared synchronously with doping Fe3+/Ni2+/Mn2+ ions. The morphology, structure, thermal stability and magnetic property of titanate nanotubes were characterized by X-ray diffraction (XRD). transmission electron microscope (TEM), and magnetic measurement. The titanate nanotubes transformed into the anatase titania nanocrystals, and further the mixture of anatase and rutile titania along with increasing temperature. The results indicate that the titanate nanotubes doped with Fe3+/Ni2+/Mn2+ ions are paramagnetic behaviors.