Boron nitride nanotubes (BNNTs) possess many fascinating properties that make them promising for various applications in microelectronics, biomedicine and coating. In this work, BNNTs were synthesized by a ball milling-annealing method. Boron powder was milled with promoters, lead(II) oxide (PbO) and iron(III) nitrate nonahydrate (Fe(NO₃)₃⋅9H₂O), under the N₂ gas environment to prepare a precursor. Then, bamboo-like and cylindrical BNNTs were synthesized by annealing the precursor at 1150 °C under the NH₃ gas environment. The phase of the BNNTs was identified to be hexagonal BN by X-ray diffractometry, Raman spectroscopy and transmission electron microscopy. The effect of the promoter content in the precursor on the synthesis of the BNNTs was investigated. When the mass ratio of B:PbO:Fe(NO₃)₃⋅9H₂O was 1:1:1, bamboo-like and cylindrical BNNTs with a diameter of 60–500 nm, uniform composition and polycrystalline microstructure were obtained.

氮化硼纳米管（BNNT）具有许多引人入胜的特性，使其有望在微电子，生物医学和涂料中的各种应用。在这项工作中，BNNTs是通过球磨退火法合成的。硼粉末与启动子研磨，铅（II）氧化物（PBO）和铁（III）九水合硝酸铁（Fe（NO ₃）₃ ⋅9H ₂ O）中，N下_2个气体环境中，以制备前体。然后，通过在NH ₃气体环境下于1150°C退火前驱体来合成竹状和圆柱形BNNT 。通过X射线衍射，拉曼光谱和透射电子显微镜。研究了前体中启动子含量对BNNTs合成的影响。当B的质量比：（NO的Fe：的PbO ₃）₃ ⋅9H ₂ O的1：1：1，竹节状和直径为60-500纳米，均匀的组成和多结晶组织圆柱形硼氮纳米管得到的。