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化学学报
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化学学报 ›› 2007, Vol. 65 ›› Issue (23): 2675-2679. 上一篇    下一篇

研究论文

静电纺丝技术制备TiO2@SiO2亚微米同轴电缆与表征

张双虎, 董相廷*, 徐淑芝, 王进贤   

  1. (长春理工大学化学与环境工程学院 长春 130022)
  • 投稿日期:2007-04-23 修回日期:2007-07-02 发布日期:2007-12-14
  • 通讯作者: 董相廷

Preparation and Characterization of TiO2＠SiO2 Submicron-scaled Coaxial Cables via a Static Electricity Spinning Technique

ZHANG Shuang-Hu; DONG Xiang-Ting*; XU Shu-Zhi; WANG Jin-Xian   

  1. (School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun 130022)
  • Received:2007-04-23 Revised:2007-07-02 Published:2007-12-14
  • Contact: DONG Xiang-Ting

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用静电纺丝技术成功制备出大量的TiO2＠SiO2亚微米同轴电缆. 用TGA-DTA, XRD, SEM, TEM, EDS, FTIR分析技术对样品结构和组成进行了系统的表征. 结果表明, 得到的产物为TiO2＠SiO2亚微米级同轴电缆, 以无定型SiO2为壳层, 晶态TiO2为芯层, 电缆平均直径450 nm, 壳层厚度90 nm, 电缆长度＞300 μm, 同时在样品中发现个别纤维呈现管状结构, 对其形成机理进行了讨论.

关键词: 静电纺丝, 亚微米电缆, 同轴电缆, 二氧化钛, 二氧化硅

Highly-yielded TiO2＠SiO2 submicron-scaled coaxial cables have been successfully synthesized via a static electricity spinning technology. The microstructures and components of the samples were studied by TGA-DTA, XRD, SEM, TEM, EDS and FTIR techniques. The as-prepared sub-micro coaxial cables with a mean diameter of 450 nm and shell thickness of 90 nm had a crystalline TiO2 core and an amorphous shell of SiO2. The length of the TiO2＠SiO2 cable was longer than 300 μm. Some submicron tubes were also found in the samples, and their formation mechanisms were also discussed in detail.

Key words: static electricity spinning, sub-micro cable, coaxial cable, TiO2, SiO2