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Preparation and photocatalytic activity of Gd-doped TiO2 nanofibre

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Abstract

In order to realize the photocatalysis of TiO2 in the sunlight and directly apply it to waste water treatment, the Gd-doped TiO2 nanofibre was synthesized using two-step synthesis method as follows: Firstly, potassium carbonate, titanium dioxide and proper gadolinium oxide (dopant) were calcined in the muffle at high temperature and the doped gadolinium K2Ti4O9 fibres were obtained; secondly, the fibre was heated using glycerol as solvent until Gd-doped TiO2 nanofibres were obtained. The synthesized samples were characterized using scanning electron microscopy, transmission electron microscopy and X-ray diffraction. The results show that Gd-doped TiO2 nanofibre heat-treated by glycerol solvent can inhibit the agglomeration, so the grain diameter of the fibre is smaller than that without heat-treated with glycerol. Meanwhile, the diameter of the fibre decreases with the increase of the heating temperature and time. 97%–98% of Gd-doped TiO2 nanofibre is anatase. The photocatalysis results showed that the photocatalysis activity of Gd-doped TiO2 nanofibre is just a little lower than that of TiO2 powder.

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Authors and Affiliations

  1. Department of Chemistry and Environment, Changsha University of Science and technology, 410076, Changsha, China

    Zhou Yi (Associate professor) & Zhu Zhi-ping

  2. Department of Chemistry, Changsha University, 410007, Changsha, China

    Zhang Shi-ying

  3. School of Chemistry and Chemical Engineering, Central South University, 410083, Changsha, China

    Li Yong-kun

Authors
  1. Zhou Yi
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  2. Zhang Shi-ying
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  3. Zhu Zhi-ping
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  4. Li Yong-kun
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Correspondence to Zhou Yi.

Additional information

Foundation item: Project(50174024) supported by the National Natural Science Foundation of China; project(03JJY4046) supported by the Natural Science Foundation of Hunan Province; project(03C057) supported by Scientific Research Fund of Hunan Provincial Education Department

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Zhou, Y., Zhang, Sy., Zhu, Zp. et al. Preparation and photocatalytic activity of Gd-doped TiO2 nanofibre. J Cent. South Univ. Technol. 12, 657–661 (2005). https://doi.org/10.1007/s11771-005-0064-3

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  • DOI: https://doi.org/10.1007/s11771-005-0064-3

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