采用水热合成法、在不同条件下制备Na0.5Bi0.49Eu0.01TiO3(NBT-Eu)纳米粉体。通过X射线粉末衍射(XRD)、紫外-可见光谱、透射电子显微镜、荧光光谱对样品进行表征。结果表明，在200 ℃、碱浓度12 mol·L-1、反应时间24 h、添加剂OP-10用量为0.6 mL时，可以得到纯三方钙钛矿结构的NBT-Eu粉体，该粉体以直径为15~200 nm的纳米棒形式存在。NBT-Eu粉体在458 nm激发下，产生689 nm的荧光，该荧光由Eu3+的5D0→7F4能级跃迁产生。

Na0.5Bi0.49Eu0.01TiO3 nanopowders were prepared by the hydrothermal method under different conditions. The synthesized nanopowders were characterized by X-ray diffraction, UV-visible spectra, transmission electron microscopy and photoluminescence spectra. The results reveal that the phase-pure rhombohedral perovskite structure NBT-Eu powders can be prepared at a hydrothermal temperature of 200 ℃ for 24 h with 12 mol·L-1 NaOH and 0.6 mL OP-10. The powders exhibit nanorod shape with a diameter of 15 to 200 nm. Under the excitation of 458 nm light, NBT-Eu nanopowders exhibit the strongest emission at 689 nm, which can be attributed to 5D0→7F4 transition of Eu3+.