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以钛酸四丁酯(TBT)、无水乙醇和聚乙烯吡咯烷酮(PVP)为原料,配置适宜纺丝的前驱体溶液。该溶液在合适的工作条件下以静电纺丝方法纺丝得到前驱体纤维,再经真空高温退火得到TiO_2纳米纤维;对得到的纳米纤维进行物性测试,测试退火后样品的XRD图像发现样品在550℃的温度退火下形成了锐钛矿相的TiO_2,测试比较退火前后样品的扫描电镜(SEM)图像发现样品在退火前后均是网格状纳米纤维结构,测试退火前后样品的红外吸收光谱发现样品经退火后形成了Ti-O化学键,测试TiO_2纳米纤维与TiO_2粉末的发射光谱比较其不同之处。
Using tetrabutyl titanate (TBT), absolute ethanol and polyvinylpyrrolidone (PVP) as raw materials, a suitable spinning precursor solution is provided. The solution was electrospun under appropriate working conditions to obtain a precursor fiber spinning method, and then annealed under vacuum to obtain TiO 2 nanofibers; nanofibers obtained physical properties test, the samples were annealed XRD images found in the sample at 550 The results show that the samples are annealed before and after annealed. The samples before and after annealed were examined by scanning electron microscopy (SEM). The infrared absorption spectra of the samples before and after annealing were used to find the samples After annealing, a Ti-O chemical bond was formed, and the emission spectra of TiO 2 nanofibers and TiO 2 powders were compared.