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Photocatalytic activity of magnetically separable La-doped TiO2/CoFe2O4 nanofibers prepared by two-spinneret electrospinning

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Abstract

A novel magnetically separable composite photocatalyst—〈La-doped TiO2〉/CoFe2O4 nanofiber—was prepared by a two-spinneret electrospinning method combined with sol–gel method. The nanofibers were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscope (TEM), Energy dispersive X-ray spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS), and vibrating sample magnetometer (VSM). It was shown that the diameter of 〈1.0% La-doped TiO2〉/CoFe2O4 nanofibers was 100–150 nm after calcination at 600 °C for 2 h. EDS and XPS measurements on the photocatalytic material indicated the existence of La3+ oxidation states in 〈1.0% La-doped TiO2〉/CoFe2O4 nanofibers. The photocatalytic activity of as-prepared nanofibers was evaluated using methylene blue (MB) as a model organic compound and the result revealed that the 〈1.0% La-doped TiO2〉/CoFe2O4 nanofibers have an efficient photocatalytic property, and the degradation rate of MB could reach 93% in 150 min. Moreover, the magnetic property of the nanofibers has also been characterized, and the nanofibers show a good magnetic response, which indicates that the possibility of the magnetic nanofibers’ potential recycling property.

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Acknowledgements

This study was partly supported by the Natural Science Foundation of China (grant no. 51073005), the Beijing Natural Science Foundation (grant no. 2112013, KZ201010012012), PHR (IHLB), and the 973 Project (grant no. 2010CB933501).

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Authors and Affiliations

  1. College of Material Science and Engineering, Beijing Institute of Fashion Technology, Beijing, 100029, China

    Xiu-Yan Li, Jiao-Na Wang, Lian-Lian Zhang & Cong-Ju Li

  2. Beijing Key Laboratory of Clothing Materials R&D and Assessment, Beijing, 100029, China

    Jiao-Na Wang, Lian-Lian Zhang & Cong-Ju Li

Authors
  1. Xiu-Yan Li
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  2. Jiao-Na Wang
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  3. Lian-Lian Zhang
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  4. Cong-Ju Li
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Correspondence to Cong-Ju Li.

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Li, XY., Wang, JN., Zhang, LL. et al. Photocatalytic activity of magnetically separable La-doped TiO2/CoFe2O4 nanofibers prepared by two-spinneret electrospinning. J Mater Sci 47, 465–472 (2012). https://doi.org/10.1007/s10853-011-5821-0

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