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Titanium dioxide fibers prepared by sol–gel process and centrifugal spinning

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Abstract

A new study of the preparation of nanocrystalline titanium dioxide (TiO2) fibers is reported in the paper, which were prepared by sol–gel process with titanium acetate [Ti(CH3COO)4] as precursor. After that, centrifugal spinning and steam atmosphere heat-treatment were used to obtain final fibers. Here, the molecule structure of precursor was analyzed and the TiO2 fibers obtained were characterized. Additionally, the effects of the silica (SiO2) doping were discussed in this paper. By the Fourier transformation infrared spectrum analysis, the chain structure of –O–Ti–O–Ti–O– was confirmed in the Ti(CH3COO)4 precursor, as a result the precursor spinning solution showed a good spinning performance. And the pyrolysis process of precursor fibers was analyzed with the help of DSC–TG method. The phase of TiO2 fibers obtained after heat-treatment with steam atmosphere was characterized mainly by the X-ray diffractometer (XRD), from the XRD curves, the result that the SiO2 doping can efficiently inhibit the grain growth of TiO2 fibers could also be verified. The microstructure of the TiO2 fibers was observed by scanning electron microscope, which showed that diameter of TiO2 fibers obtained with excellent continuity are from 5 to 10 μm. At last, the photocatalytic property of TiO2 fibers was also tested.

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Authors and Affiliations

  1. School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing, 210094, People’s Republic of China

    Heyi Liu, Xiangjun Zhou, Yan Chen, Tao Li & Shiguang Pei

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  1. Heyi Liu
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  2. Xiangjun Zhou
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  3. Yan Chen
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  4. Tao Li
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  5. Shiguang Pei
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Correspondence to Heyi Liu.

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Liu, H., Zhou, X., Chen, Y. et al. Titanium dioxide fibers prepared by sol–gel process and centrifugal spinning. J Sol-Gel Sci Technol 71, 102–108 (2014). https://doi.org/10.1007/s10971-014-3332-6

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  • DOI: https://doi.org/10.1007/s10971-014-3332-6

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