Two novel polytitanium precursors containing linear Ti-OH)2–Ti chains applied for the preparation of titanium dioxide fibers
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  • 作者:Ningning Cai ; Xinqiang Wang ; Daidong Guo ; Luyi Zhu ; Kangkang Yuan
  • 刊名:Applied Physics A: Materials Science & Processing
  • 出版年:2015
  • 出版时间:November 2015
  • 年:2015
  • 卷:121
  • 期:2
  • 页码:723-730
  • 全文大小:1,557 KB
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  • 作者单位:Ningning Cai (1)
    Xinqiang Wang (1)
    Daidong Guo (1)
    Luyi Zhu (1)
    Kangkang Yuan (1)
    Xuejun Lin (1)
    Guanghui Zhang (1)
    Xiulan Duan (1)
    Jing Sun (2)
    Dong Xu (1)

    1. State Key Laboratory of Crystal Materials and Institute of Crystal Materials, Shandong University, Jinan, 250100, People’s Republic of China
    2. College of Physics and Electromechanical Engineering, Jishou University, Xiangxi, 416000, People’s Republic of China
  • 刊物类别:Physics and Astronomy
  • 刊物主题:Physics
    Condensed Matter
    Optical and Electronic Materials
    Nanotechnology
    Characterization and Evaluation Materials
    Surfaces and Interfaces and Thin Films
    Operating Procedures and Materials Treatment
  • 出版者:Springer Berlin / Heidelberg
  • ISSN:1432-0630
文摘
Two novel precursors, polyacetylacetonatotitanium (PAT) and polyacetictitanium (PET), which can be applied for the preparation of TiO2 fibers, were synthesized by metathetical polycondensations. The fibers of PAT and PET were prepared by sol–gel dry-spinning method. The high-quality and plentiful precursor fibers were easily collected with the diameter of 2-0 μm. The structures of the precursors were characterized and analyzed by elemental analyses, X-ray fluorescence spectrometry, infrared spectral analysis, nuclear magnetic resonance analysis, and thermal analyses. Both PAT and PET are the linear polymers containing Ti(OH)2Ti chains. The coordination number of titanium atom is 8. And each titanium atom is coordinated with six –OHs and one CH3–CO?/sup>=C–CO–CH3 (for PAT) or CH3–COO?/sup> (for PET). The precursor fibers can be used to prepare TiO2 fibers at 500 °C. The TiO2 fibers exhibit fine photocatalytic degradation activities.

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