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NaOH共沉淀法制备尖晶石型CoxZn1-xFe2O4纳米晶

, PP. 610-613

Keywords: NaOH,共沉淀法,CoxZn1-xFe2O4纳米晶,制备

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Abstract:

以CoSO4、ZnSO4和Fe2(SO4)3为原料,NaOH为沉淀剂,利用化学共沉淀法制备了CoxZn1-xFe2O4纳米晶;通过扫描电子显微镜(SEM)、X射线衍射仪(XRD)和振动样品磁强计(VSM)分别对CoxZn1-xFe2O4纳米晶的形貌、尺寸、结构和磁性能等进行表征.结果表明制备的CoxZn1-xFe2O4均为尖晶石结构,晶粒为球形,粒径在30~60nm之间.样品的比饱和磁化强度(σs)、矫顽力(Hc)随钴含量的增加而增加,样品逐渐从ZnFe2O4的顺磁性转变为CoFe2O4的亚铁磁性.

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