Abstract: Applications of ferriferrous oxide nanomaterials in magnetic materials，multifunctional materials，catalysts and medical field are described in this paper. Preparation methods of ferriferrous oxide nanometerials，including precipitation method，sol-gel method，micro-emulsion method，hydrothermal and solvothermal method，thermal decomposition method and electrospinning method，are introduced. Applied fields of ferriferrous oxide nanomaterials with various morphologies，such as nanoparticles，nanorods，nanowire，nanofilm，hybrid and core-shell nanomaterials are discussed. In this paper the advances of these methods are summarized. The advantages and disadvantages of these methods are discussed. Moreover，combining with our work on the preparation of ferriferrous oxide nanomaterials，the development trends of these fabrication methods are also proposed：the preparation of ferriferrous oxide nanometerials with special morphologies，the decrease of agglomeration and the oxidation of ferriferrous oxide nanometerials，the combination of several preparation methods and a way to realize industrial production.

Key words: nanometerial, ferriferrous oxide, synthesis, progress

摘要： 阐述了纳米四氧化三铁在磁性材料、多功能材料、催化材料以及医学领域的应用现状。对纳米四氧化三铁的制备方法如沉淀法、溶胶-凝胶法、微乳液法、水热与溶剂热法、热分解法、静电纺丝法等做了介绍。分析了各种纳米四氧化三铁材料的形态如纳米颗粒、纳米棒、纳米线、纳米膜、杂化、核壳结构纳米晶等的适用领域。总结了各种制备方法的研究进展，分析了其优缺点并结合作者课题组在纳米四氧化三铁制备方面的研究工作，对纳米四氧化三铁的今后的研究方向作了展望：制备特殊形貌的纳米四氧化三铁材料、减少纳米四氧化三铁的团聚和氧化、多种制备方法的结合以及如何实现大规模工业化生产。

关键词: 纳米材料, 四氧化三铁, 制备, 进展