Abstract: Taking pure anatase TiO2 as the precursor, doped magnetic ions doped with titanate nanotubes were synthesized by the hydrothermal method. In this process the nanotubes were prepared at the same time with the doping of magnetic ions. The products were characterized with X-ray diffraction (XRD), Transmission Electron Microscope (TEM), Thermal Analysis (TG-DTA) and BET surface area. The results showed that the structure of the nanotube was that of titanate different from anatase phase. The nanotubes had very large surface area and pore volume. The doping of magnetic ions did not make an obvious effect on the morphology and structures of titanate nanotubes. Treatment at a high temperature would bring big changes to the structures of titanate nanotubes. When the calcination temperature was higher than 450℃, the tubulous structure of titanate nanotubes was destroyed and transformed into anatase phase.

摘要： 以纯锐钛矿相TiO2纳米粉体为前体，利用水热法，在制备的过程中进行同步掺杂，合成了掺杂磁性金属离子的钛酸盐纳米管；并利用X射线衍射（XRD）分析、透射电子显微镜（TEM）、热分析（TG-DTA）和BET比表面积对产物进行了表征。结果表明，合成的纳米管具有不同于锐钛矿相的钛酸盐结构，比表面积和孔体积很大，并且磁性离子的掺杂对纳米管的晶体结构和形貌没有产生大的影响。高温煅烧处理对钛酸盐纳米管的结构影响较大，当温度高于450 ℃后，纳米管的层状结构被破坏，晶体结构转化为锐钛矿相的TiO2结构。