采用化学还原法制备得到了Fe3O4纳米颗粒,并用XRD对制备条件:分散剂种类、分散剂用量、煅烧温度、煅烧时间进行了研究.研究结果表明,当选用PEG(6000)做分散剂,PEG用量为50g/L,煅烧温度为700℃,煅烧时间为120min时,制备得到的Fe3O4纳米颗粒已经具有晶型完整的反尖晶石结构.将该样品做VSM分析,分析结果表明样品饱和磁化强度可达85A·m2/kg,并且矫顽力趋近于0,呈现出良好的顺磁性.
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