中文摘要：

本工作研究了在水热条件下纤蛇纹石纳米管的人工合成，通过掺杂Fe^3＋离子替代了纤蛇纹石晶格中的Mg^2＋离子。采用X-射线衍射、扫描电镜、透射电镜、红外光谱和电子自旋共振谱等手段研究了掺杂离子对纤蛇纹石晶体生长和晶体结构的影响。X-射线衍射分析表明随着掺杂Fe^3＋离子量的增加所得到的纤蛇纹石样品其晶胞参数6值逐渐减小。电子自旋共振谱、红外光谱分析表明Fe^3＋离子部分替代了Mg^2＋离子和Si^4＋离子进入纤蛇纹石的八面体和四面体结构单元。透射电镜研究表明掺杂前后所得到的纤蛇纹石内径分别为6．8nm和8．15nm。

英文摘要：

Fe^3＋ doped Chrysotile nanotubes have been synthesized by hydrothermal method and characterized by X-ray diffraction （XRD）, scanning electron microscopy （SEM）, transmission electron microscopy （TEM）, Infrared spectroscopy （IR） and electron spin resonance （ESR）, The XRD analysis indicates that the cell-parameter （b0） of chrysotile nanotubes minishes gradually along with higher Fe63＋ content in the synthesized samples. A partial Fe^3＋ replacement for Si^4＋ and Mg^2＋ has been revealed by IR and SER studies. The TEM analysis indicates that the inner diameters for the chrysotile nanotubes and the doped ones is 6-8 nm and 8-15 nm, respectively.