采用激光感应复合加热蒸发合成法,以CH4为碳源,制备了大量具有壳核结构的纳米碳包铁颗粒,通过透射电子显微镜(TEM)、X射线衍射分析仪(XRD)、能量弥散X射线分析(EDX)等对颗粒进行了表征,并利用动态磁滞回线测定仪测定了纳米颗粒的磁化强度等磁性能.结果表明,利用该方法制备的碳包铁纳米颗粒的平均粒径为25nm,表面碳层厚度为5nm左右,具有铁磁性能.纳米碳包铁颗粒将作为磁性载体在医学细胞分离、细胞染色、靶向用药、定向治疗、肿瘤热疗等方面具有广阔的应用前景.
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