在多孔氧化铝模板中,采用负压抽滤法制备了LaF3∶Eu纳米管阵列。通过X射线衍射仪、扫描电子显微镜、选区电子衍射和能量色散谱对LaF3∶Eu纳米管的晶相结构、形貌、元素组成进行了表征。研究了Eu3+掺杂量对LaF3∶Eu纳米管荧光性能的影响。结果表明:制备LaF3∶Eu纳米管为非晶态结构,其形貌可控,且纳米管直径均一,直径约为100nm。LaF3∶Eu纳米管中La、F和Eu元素的摩尔比为23.42∶72.94∶3.64。荧光光谱表明,当Eu3+掺杂量为6%(摩尔分数)时,LaF3∶Eu纳米管阵列荧光强度最强。 LaF3:Eu nanotube arrays were prepared by vacuum suction filtration in a porous alumina template. The crystal structure, morphology and elemental composition of LaF3:Eu nanotubes were characterized by X-ray diffraction, scanning electron microscopy, selected area electron diffraction and energy dispersive spectroscopy. The effect of Eu3 + doping on the fluorescence of LaF3:Eu nanotubes was investigated. The results show that the preparation of LaF3:Eu nanotubes is an amorphous structure with controlled morphology and uniform nanotube diameter of about 100 nm. The molar ratio of La, F and Eu elements in LaF3: Eu nanotubes was 23.42: 72.94: 3.64. Fluorescence spectra showed that the fluorescence intensity of LaF3:Eu nanotube array was the strongest when the Eu3 + doping amount was 6% (molar fraction).