中文摘要：

以硝酸铋[Bi（NO）3]和硫化钠（Na2S）为反应原料，采用水热法在120℃下反应12h，制备出Bi2S3纳米管．利用X射线粉末衍射（XRD）、扫描电子显微镜（SEM）、透射电子显微镜（TEM）、选区电子衍射（SAED）和高分辨透射电镜（HRTEM）对其结构和形貌进行了表征．结果表明，所制备的产物是结晶良好的正交相Bi2S3纳米管，其外径为100～500nm，内径为50～200nm，长为1～5μm．根据实验结果讨论了Bi2S3纳米管的生长机理．初步研究了反应温度和矿化剂种类对产物形貌和结构的影响．

英文摘要：

Large-scale high-quality Bi2S3 nanotubes were successfully prepared by a facile hydrothermal reaction between Bi（NO3）3 and Na2S at a low reaction temperature. The morphology and structure of as-prepared samples were investigated by X-ray Diffraction （ XRD）, Scanning Electron Microscopy （ SEM）, Transmission Electron Microscopy （ TEM）, Selective-area Electron Diffraction （ SAED ） and High-resolution Transmission Electron Microscopy（HRTEM）. The characterization results show that the nanotubes are well-crystallized orthorhombic Bi2S3 nanotubes with out diameter 100--500 nm, inner diameter 50--200 nm and lengths between 1 to 5 μm respectively. The growth mechanism of Bi2S3 nanotubes was proposed on the basis the results of experiment. The effects of reaction temperature and different mineralizers were also investigated.