不同有机模板对羟基磷灰石晶须形貌的控制生长

Controlled Growth of Hydroxyapatite Whiskers with Different Organic Additives as Templates

通过添加不同有机模板,采用水热均相沉淀法制备了晶须状羟基磷灰石纳米材料。通过扫描电子显微分析(SEM)和X射线衍射分析(XRD)研究了羟基磷灰石晶须的形貌、长径比以及相组成等。结果表明,以乙二胺四乙酸(EDTA)、十六烷基三甲基溴化铵(CTAB)、山梨醇为有机模板,均能制备出晶须状羟基磷灰石,其中以EDTA为有机模板制备的羟基磷灰石晶须纯度最高,以山梨醇为模板制备的晶须具有较高的长径比和均一的形貌。

Hydroxyapatite whiskers were synthesized by hydrothermal homogeneous precipitation method through using three different organic templates. The morphology, aspect ratio and phase composition of the as-prepared whiskers were characterized by SEM and XRD. The results show that hydroxyapatite whiskers can be synthesized through using EDTA, CTAB and sorbitol as templates, respectively. Furthermore, the as-prepared hydroxyapatite whiskers with EDTA have high purity, whereas the as-prepared whiskers have uniform morphology and high aspect ration with sorbitol.