磁性四氧化三铁纳米粒子的制备及其应用研究进展

Progress of preparation and application of magnetic Fe_(3)O_(4) nanoparticles

四氧化三铁(Fe_(3)O_(4))作为一种较为常用的磁性纳米粒子,具有稳定的化学性质、较高的催化活性、良好的磁响应性及生物相容性,可通过改变反应条件将其粒径降至几纳米,因此被广泛应用于高磁记录材料、吸附剂、生物传感和磁共振成像等领域。在对磁性Fe_(3)O_(4)纳米粒子的制备方法进行综述的基础上,介绍了固相法、化学共沉淀法、水热法、微乳法以及溶胶-凝胶法等常用方法,并总结了其在环境治理、生物医学以及功能性材料制备等领域中的应用,同时展望了磁性Fe_(3)O_(4)纳米粒子未来的研究应用方向。

As a kind of commonly used magnetic nanoparticles,Fe_(3)O_(4) particles possess stable chemical properties,high catalytic activity,good magnetic response and biocompatibility,and their particle size can be reduced to a few nanometers by changing the reaction conditions,thus they are widely used in high magnetic recording materials,adsorbents,biosensors,magnetic resonance imaging and other fields.In this paper,on the basis of reviewing the preparation methods of magnetic Fe_(3)O_(4) nanoparticles,inclu-ding solid phase method,chemical coprecipitation method,hydrothermal method,microemulsion method and sol-gel method,etc.,their applications in the fields of the environmental governance,biomedical,and functional material preparation are summarized,and their research and application of the future di-rection are also prospected.