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磁性纳米材料作为新兴的无机功能材料,因其具有与常规材料不同的特殊性质,如高比表面积、强磁响应性、良好的化学稳定性和生物相容性等,被广泛应用在生物合成、生物分离、生物传感器、免疫测定、有机催化、药物传输、数据存储和环境治理等方面。目前合成磁性纳米材料的方法主要有化学共沉降法、高温热分解法、溶胶-凝胶法及热液法等。由于热液法具有条件简易、成本低廉、反应活性高、产率可观和绿色环保等优势,近年来受到了广泛的关注,并已应用在工业生产中。本文根据磁性材料组成与构成方式的不同,综述了热液法合成磁性纳米材料的研究进展。
As a new inorganic functional material, magnetic nanomaterials have been widely used in biosynthesis, biosynthesis, biosynthesis and so on because of their special properties, such as high specific surface area, strong magnetic response, good chemical stability and biocompatibility, Biological separation, biosensors, immunoassays, organic catalysis, drug delivery, data storage and environmental management. At present, the methods of synthesizing magnetic nanomaterials mainly include chemical coprecipitation method, pyrolysis method, sol-gel method and hydrothermal method. Because hydrothermal method has the advantages of simple conditions, low cost, high reactivity, considerable yield and environmental protection, etc., it has been widely concerned in recent years and has been used in industrial production. According to the different composition and composition of magnetic materials, the progress of the synthesis of magnetic nanomaterials by hydrothermal method is reviewed.