溶胶凝胶模板法制备羟基磷灰石纳米线

Preparation of Hydroxyapatite Nanowires via Sol-Gel Template Method

以氯化钙和五氧化二磷的醇溶液为前驱体溶液,多孔阳极氧化铝(AAO)膜为模板,通过溶胶凝胶-模板法成功制备出羟基磷灰石(Ca10(PO4)6(OH)2,HAP)纳米线;利用扫描电镜、能量色散谱仪、透射电镜、X射线衍射仪及傅立叶变换红外光谱仪等分析了产物的组成和微结构;并讨论了纳米线的生长机理.结果表明,所制备的羟基磷灰石纳米线直径约为50nm、长度达20μm,分别与模板的孔径和厚度一致.

Hydroxyapatite （Ca10（PO4）6 （OH）2, HAP） nanowires were prepared by using sol-gel template technique, with the ethanol solution of CaCl2 and P2O5 as precursors and anodic alumina （AAO） film as the template. The microstructure and composition of the nanowires were analyzed by means of scanning electron microscopy, energy dispersive spectrometry, transmission electron microscopy, X-ray diffraction, and Fourier transformation infrared spectrometry. Moreover, the growth mechanism of the nanowires was discussed. Results show that the asprepared nanowires have a size of about 50 nm in diameter and 20μm in length, which well corresponds to the pore diameter and thickness of the AAO template.