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Citation: ZHANG Hong-Ye, JI Tian-Hao, LI Ling-Long, QI Xing-Yi, LIU Yi-Fan, CAI Jian-Wang, DU Hai-Yan, SUN Jia-Yue. Preparation and Characterization of Room-temperature Ferromagnetic Ni-doped TiO₂ Nanobelts[J]. Acta Physico-Chimica Sinica, ;2008, 24(04): 607-611. doi: 10.1016/S1872-1508(08)60027-3 shu

Preparation and Characterization of Room-temperature Ferromagnetic Ni-doped TiO₂ Nanobelts

1.
School of Materials Science and Technology, Beijing University of Aeronautics and Astronautics, Beijing 100083, P. R. China; State Key Laboratory of Magnetism, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, P. R. China; College of Chemical and Environmental Engineering, Beijing Technology and Business University, Beijing 100037, P. R. China

Received Date: 8 October 2007
Available Online: 19 February 2008

Ni-doped anatase TiO2 nanobelts (NBs) with different Ni2+ contents were simply prepared by combining ion-exchange with hydrothermal treatment. They were characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared (FTIR), and magnetic measurement techniques. The results showed that Ni2+ cations doped into the TiO2 lattice and no metallic nickel clusters or nanoparticles could be found. The magnetic results demonstrated that the prepared Ni-doped TiO2 samples had complex magnetic mechanism including room-temperature ferromagnetic and paramagnetic behaviors, and with the increase of Ni2+ content, the magnetization also increased under the same applied field owing to uniform distribution of Ni2+ ions in TiO2 nanobelts.
- Diluted magnetic semiconductor,
- Nanobelts,
- Ni-doped TiO2,
- Room-temperature ferromagnetic
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沈阳化工大学材料科学与工程学院沈阳 110142

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Preparation and Characterization of Room-temperature Ferromagnetic Ni-doped TiO2 Nanobelts

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通讯作者: 陈斌, bchen63@163.com

Preparation and Characterization of Room-temperature Ferromagnetic Ni-doped TiO₂ Nanobelts