| 磁性共价有机框架的制备方法研究 |
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| 引用本文： | 牛琳,吴爱明,王珺瑜,王宏洋,汤智,汪霞,赵晓丽.磁性共价有机框架的制备方法研究[J].环境科学研究,2020,33(9):2118-2128. |
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| 作者姓名： | 牛琳 吴爱明 王珺瑜 王宏洋 汤智 汪霞 赵晓丽 |
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| 作者单位： | 1.中国环境科学研究院, 环境基准与风险评估国家重点实验室, 北京 100012 |
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| 基金项目： | 国家自然科学基金面上项目（No.41673131） |
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| 摘 要： | 磁性共价有机框架（magnetic covalent organic framework，MCOFs）是一种新型多孔结晶有机框架材料，由于其结合了磁性纳米颗粒和共价有机框架（covalent organic frameworks，COFs）的优点，具有比表面积大、热稳定性和化学稳定性良好、饱和磁化强度高等特点，能够快速实现污染物与溶液的分离，弥补了COFs难以分离和回收的缺点，因此在磁性固相萃取、生物检测、传感等方面具有巨大的潜在应用.然而关于MCOFs制备方法的文章鲜见报道，其制备方法根据磁性纳米颗粒与COFs不同的连接形式而不尽相同，根据2011—2019年关于MCOFs的重要文献，综述了目前MCOFs的制备方法，包括包覆法、单体聚合法及原位合成法等，指出了不同制备方法的优缺点，同时探讨了MCOFs今后的发展方向和潜在应用，希望能够为MCOFs研究提供理论依据.包覆法制备条件较温和，保存了磁性纳米颗粒的完整性，是最为广泛应用的一种策略方法；单体聚合法操作简单，但制备条件苛刻，可控性不强；原位合成法制备MCOFs更多依赖于单体聚合法制备的共价三嗪骨架，需要不断开发基于其他类型COFs的MCOFs制备条件.今后MCOFs的制备方法应从材料设计多样性、应用广泛性等方面进行考虑，并向有望实现大规模工业应用方面发展.
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| 关 键 词： | 磁性共价有机框架(MCOFs) 制备 磁性纳米颗粒 多孔材料 |
| 收稿时间： | 2019/9/5 0:00:00 |
| 修稿时间： | 2020/2/4 0:00:00 |
Advances in Preparation Methods of Magnetic Covalent Organic Frameworks |
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| NIU Lin,WU Aiming,WANG Junyu,WANG Hongyang,TANG Zhi,WANG Xia,ZHAO Xiaoli.Advances in Preparation Methods of Magnetic Covalent Organic Frameworks[J].Research of Environmental Sciences,2020,33(9):2118-2128. |
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| Authors: | NIU Lin WU Aiming WANG Junyu WANG Hongyang TANG Zhi WANG Xia ZHAO Xiaoli |
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| Affiliation: | 1.State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China2.College of Environment, Hohai University, Nanjing 210098, China3.College of Water Sciences, Beijing Normal University, Beijing 100875, China |
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| Abstract: | As a new type of porous crystalline organic framework material, magnetic covalent organic frameworks (MCOFs) combine the advantages of magnetic nanoparticles and covalent organic frameworks (COFs), exhibiting large specific surface area, good thermal and chemical stability, and high saturation magnetization. MCOFs can quickly separate pollutants from solutions and make up for the shortcomings of the COFs, which is difficult to separate and recover. Therefore, they haves great potential applications in magnetic solid phase extraction, biological detection, sensing and so on. However, there are few reports on the preparation methods of MCOFs. The preparation methods are different according to different connection forms of magnetic nanoparticles and COFs. According to the relevant literature form 2011 to 2019, the preparation methods of MCOFs are reviewed in this paper, including coating method, monomer polymerization method and in-situ synthesis method. At the same time, this paper discusses the development direction and potential applications of MCOFs, hoping to provide theoretical basis for the research of MCOFs. The coating method requires mild preparation conditions and preserves the integrity of magnetic nanoparticles, which is the most widely used method. The monomer polymerization method is simple to operate, but the preparation conditions are harsh and not easy to control. The in-situ synthesis method for the preparation of MCOFs is more dependent on the covalent triazine skeleton prepared by the monomer polymerization method, and the preparation conditions of MCOFs based on other types of COFs need to be continuously developed. Furthermore, the preparation method of the magnetic covalent organic frameworks should be considered from the aspects of material design diversity and wide application, which is expected to develop in large-scale industrial applications. |
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| Keywords: | magnetic covalent organic frameworks (MCOFs) preparation magnetic nanoparticles porous materials |
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