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Anatase TiO2 nanoparticles/carbon nanotubes nanofibers: preparation, characterization and photocatalytic properties

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Abstract

In the present work, we report the preparation and photocatalytic properties of hybrid nanofibers/mats of anatase TiO2 nanoparticles and multi-walled carbon nanotubes (MWNTs) using combined sol–gel and electrospinning techniques. Poly(vinyl pyrrolidone) is used as a base polymer in the electrospinning suspension to assist the formation of nanofibers and subsequently removed by calcination. The hybrid nanofibers are characterized using XRD, Raman spectra, FT-IR, XPS, SEM, TEM and N2 adsorption measurements. The results show that MWNTs are encapsulated by in-situ formed anatase TiO2 nanoparticles, with chemical bonding C–O–Ti between anatase TiO2 nanoparticles and MWNTs. Hybrid nanofibrous mats with moderate content of MWNTs (mass ratio TiO2:MWNTs = 100:20) exhibit enhanced adsorption ability and excellent photocatalytic activity. The composition, diameter and morphology of hybrid nanofibers can be tuned by varying sol–gel formulation, electrospinning parameter and post-treatment condition. TiO2/MWNTs hybrid nanofiber and mats have promising applications in water purification and solar cell areas.

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Acknowledgements

Financial support for this study was provided by National Natural Science Foundation of China (50473054 and 50533070).

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Authors and Affiliations

  1. Beijing National Laboratory for Molecular Sciences, Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100080, China

    Guangjun Hu, Xiangfu Meng, Xiyan Feng, Yanfen Ding, Shimin Zhang & Mingshu Yang

  2. Graduate School of Chinese Academy of Sciences, Beijing, 100039, China

    Guangjun Hu, Xiangfu Meng & Xiyan Feng

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  1. Guangjun Hu
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  2. Xiangfu Meng
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  3. Xiyan Feng
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  4. Yanfen Ding
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  5. Shimin Zhang
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  6. Mingshu Yang
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Correspondence to Mingshu Yang.

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Hu, G., Meng, X., Feng, X. et al. Anatase TiO2 nanoparticles/carbon nanotubes nanofibers: preparation, characterization and photocatalytic properties. J Mater Sci 42, 7162–7170 (2007). https://doi.org/10.1007/s10853-007-1609-7

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  • DOI: https://doi.org/10.1007/s10853-007-1609-7

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