磁性气凝胶的研究进展-中国材料进展

文章信息/Info

作者:: 唐祥龙; 崔升; 张鑫; 林本兰; 吴琪; 张鑫; 沈晓冬; 1.南京工业大学材料科学与工程学院材料化学国家重点实验室， 2.宿迁市南京工业大学新材料研究院， 3. 南京军区南京总医院神经外科

Author(s):: TANG Xianglong; CUI Sheng; ZHANG Xin; LIN Benlan; WU Qi; ZHANG Xin; SHEN Xiaodong; 1.State Key Laboratory of Materials-Oriented Chemical Engineering, College of Materials Science and Engineering 2. Advanced Materials Institute of Nanjing Tech University in Suqian 3.Department of Neurosurgery, Nanjing General Hospital of Nanjing Military Command

摘要:: 磁性气凝胶以其优异的性能受到越来越多的关注。目前，磁性气凝胶的制备主要采用先将磁功能化材料分散到溶胶中，经凝胶、老化、干燥等工艺制得。磁功能化材料主要是指具有磁性的纳米材料，其中应用最多的是铁酸类，尤其以超顺磁性四氧化三铁的使用最为广泛。而磁性气凝胶的结构和性能因磁功能化纳米材料、气凝胶基体的不同而产生变化。无机磁性气凝胶的基体主要是氧化硅、氧化钛等气凝胶，主要研究磁性颗粒与气凝胶基体的相互作用机理，以及对材料的结构、性能的影响。而有机磁性气凝胶基体主要是石墨烯、碳等柔性气凝胶，主要应用在催化、吸附、生物分离等领域，具有磁性分离，使用效率、重复性能优异等特点。本文综述了上述磁性气凝胶的研究进展，介绍了磁性气凝胶材料常用的制备方法、性能以及应用前景。

Abstract:: Magnetic aerogels have attracted much attention because of their special quality and functionality. The main method for the fabrication of magnetic aerogels is firstly dispersing magnetic nanoparticles into sol followed by gelling, aging and supercritical drying. The quality and structure of the magnetic aerogels produce changes with different aerogels matrix and magnetic nanoparticles which are used in many different fabrication methods. The magnetic nanoparticles mainly include MFe2O4, and the superparamagnetic iron oxide are the mostly used as magnetic functional materials. The interaction mechanisms between magnetic nanoparticles and aerogel matrix, texture and quality of the magnetic aerogels materials are always explored in inorganic magnetic aerogels synthesized with SiO2 aerogels and TiO2 aerogels as the matrix. However, the organic magnetic aerogels, graphene and carbon as the matrix, are focused on the application in catalysis, adsorption and bio-separation. This review aims to describe recent research progress of magnetic aerogels based on the synthesis, quality and their application in future of magnetic aerogels.