以单十二烷基磷酸酯为模板剂制备了Sm3+和Fe3+共掺杂的兼具磁性和荧光特性的纺锤形介孔纳米羟基磷灰石.利用XRD、SEM、TEM、VSM、PL及氮气吸附-脱附曲线等手段对产物进行了表征与研究.掺杂的Sm3+和Fe3+以固溶和镶嵌氧化物纳米粒子2种形式存在于羟基磷灰石基体中.煅烧前后,Sm3+和Fe3+共掺杂的羟基磷灰石试样均具有良好的超顺磁性.煅烧使试样的比饱和磁化强度从13.45(A·m2)·kg-1增加至19.51 (A·m2)·kg-1.煅烧后,Sm3+和Fe3+共掺杂羟基磷灰石呈纳米纺锤体形貌,长200～350 nm,直径50～100 nm.其中分布有大量的双孔介孔,孔径分别为3.64和9.01 nm.大量双孔分布的介孔使产物具有大的比表面积和高的孔体积比,分别为153.52 m2/g和0.3286 cm3/g.产物具有生物靶向性、生物标识性及高的载药容量,在药物载体中具有大的应用潜力.
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