四氧化三铁纳米材料的制备与应用

发布时间：2018-08-11 19:14

【摘要】：近年来磁性Fe_3O_4纳米材料因其独特的物理化学性质如量子尺寸效应、表面界面效应、电学特性以及磁学特性等,而引起了广泛的研究,并在诸多领域(如环境、能源)具有潜在应用前景。本文总结了近年来国内外制备Fe_3O_4的一些方法,主要包括:沉淀法、热分解法、水热法、微乳液法以及溶胶-凝胶法,同时对各种制备方法的优缺点进行了比较。在应用方面,着眼于Fe_3O_4良好的磁响应性,综述了Fe_3O_4纳米材料及其复合物作为吸附剂用于去除废水中的金属离子以及有机污染物;系统总结了Fe_3O_4在催化中的应用,包括其本身作为催化剂和作为催化剂活性组分(如贵金属纳米粒子、金属氧化物半导体纳米光催化剂、金属有机化合物等)的载体两个方面。另外,本文还介绍了Fe_3O_4纳米材料在能源存储(锂离子电池和超级电容器)以及生物医药(肿瘤诊疗、固定化酶和免疫分析)等方面的应用。最后,针对目前Fe_3O_4纳米材料在制备中存在的一些问题进行探讨并对今后的研究方向进行了展望。
[Abstract]:In recent years, magnetic Fe_3O_4 nanomaterials have been widely studied because of their unique physical and chemical properties, such as quantum size effect, surface interface effect, electrical properties and magnetic properties, and have been widely studied in many fields (such as environment). Energy) has potential application prospect. This paper summarizes some methods of preparing Fe_3O_4 at home and abroad, including precipitation method, thermal decomposition method, hydrothermal method, microemulsion method and sol-gel method. At the same time, the advantages and disadvantages of various preparation methods are compared. In the aspect of application, focusing on the good magnetic response of Fe_3O_4, the application of Fe_3O_4 nanomaterials and their complexes as adsorbents to remove metal ions and organic pollutants in wastewater was reviewed, and the application of Fe_3O_4 in catalysis was systematically summarized. It includes itself as catalyst and as catalyst active component (such as noble metal nanoparticles, metal oxide semiconductor nanometer photocatalyst, organometallic compounds, etc.). In addition, the applications of Fe_3O_4 nanomaterials in energy storage (lithium ion batteries and supercapacitors) and biomedicine (tumor diagnosis, immobilized enzyme and immunoassay) are also introduced. Finally, some problems existing in the preparation of Fe_3O_4 nanomaterials are discussed and the future research directions are prospected.
【作者单位】：江苏大学材料科学与工程学院;
【基金】：国家自然科学基金项目(No.21403091) 江苏省自然科学基金项目(No.BK20130486) 江苏大学优秀人才启动基金(No.12JDG093)资助~~
【分类号】：TB383.1

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