Abstract: Preparation of anotubes by microwave method is a new technology that make the use of dielectric effect of microwave on water. TiO2 nanotubes were obtained using microwave method from the precursor of TiO2 nanopowders prepared by sol-gel method，and then the samples were characterized by TEM and SEM. The obtained TiO2 nanotubes without washing by HCl have very complete shapes with diameter of 8—15 nm，inner diameter of 5—10 nm and length of 50—100 nm. Upon washing with HCl，the nanotubes structure would be partially destructed as observed with electron microscope.

摘要： 微波法制备纳米管是利用微波对水的介电作用进行的，它是一种合成纳米管的新型工艺方法。本研究以溶胶-凝胶法制备的掺杂TiO2纳米粉体为前体，利用微波法制备TiO2 纳米管，用透射电子显微镜和扫描电子显微镜对其进行表征。结果表明：以TiO2纳米粉体为前体，利用微波法可以制得形貌比较完整的TiO2纳米管，其外径为8～15 nm，内径为5～10 nm，长50～100 nm。未经HCl酸洗的TiO2纳米管在电镜下结构非常完整，而经过HCl酸洗的TiO2纳米管在电镜下观察则发现其局部遭到破坏。