以Bi(NO3)3·5H2O和Fe(NO3)3·9H2O为原料,采用改进的水热法制备了BiFeO3微晶.采用浓度为0.1mol/L的前驱物沉淀制备得到非常均匀的尺度为10μm的微球,经超声分散可以得到100 nm的均匀颗粒.XRD研究表明BiFeO3纳米颗粒具有斜方的钙钛矿结构.扫描电镜结果表明BiFeO3纳米粒子具有立方形貌.而TEM结构分析表明BiFeO3纳米颗粒具有完整的单畴结构；磁性分析表明纳米的BiFeO3颗粒具有弱的铁磁有序.制备的BiFeO3具有Fe-O键的伸缩振动和弯曲振动,证实了Fe-O八面体的存在以及BiFeO3具有钙钛矿结构.
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