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磁性纳米复合材料主要包括Fe2O3、Fe3O4、NiO、Co3O4等与其他物质的复合材料,其中最常见的是Fe3O4的复合材料,而制备该类复合材料的方法有:水热合成法、化学共沉淀法、超声化学还原法、溶剂热-水热法等。磁性复合材料不但能在外加磁场的作用下迅速方便地分离,同时还能通过修饰或改性等方法使其带有某些官能团(如C=C、COOH、NH2等),因此磁性纳米复合材料在生物物质的提取与分离、污水净化、生物医学等诸多领域有广泛的应用。介绍了磁性Fe3O4纳米复合材料的制备和应用,并对磁性材料未来在各领域的应用做了展望。
Magnetic nanocomposites mainly include Fe2O3, Fe3O4, NiO, Co3O4 and other composite materials, of which the most common is Fe3O4 composite materials, and the preparation of such composite materials are: hydrothermal synthesis, chemical coprecipitation , Ultrasonic chemical reduction method, solvent heat - hydrothermal method. Magnetic composite materials not only can be rapidly and conveniently separated under the applied magnetic field, but also can carry certain functional groups (such as C = C, COOH, NH2, etc.) through modification or modification, etc. Therefore, the magnetic nanocomposites In the biological material extraction and separation, sewage purification, biomedicine and other fields have a wide range of applications. The preparation and application of magnetic Fe3O4 nanocomposites are introduced, and the future application of magnetic materials in various fields is prospected.