磁纳米材料在环境污染物分析与去除研究中的应用  

Application of magnetic nanomaterials in the analysis and removal of environmental pollutants

作　　者：柳晶鑫 翟诗曼 徐江艳[1] 卢爱民[1] 蒋红梅[1] LIU Jingxin;ZHAI Shiman;XU Jiangyan;LU Aimin;JIANG Hongmei(College of Science,Nanjing Agricultural University,Nangjing 210000)

机构地区：[1]南京农业大学理学院,南京210000

出　　处：《分析试验室》2020年第11期1241-1253,共13页Chinese Journal of Analysis Laboratory

基　　金：国家自然科学基金(21607075);中央高校基本科研业务费(KJQN201721,KYZ201600163)资助。

摘　　要：水体中的污染物对环境和人类健康影响极大,发展可靠的检测方法和高效的去除手段对污染物的监控与治理具有重大意义。在诸多分离富集技术中,基于固相材料的吸附法因具有高效、操作简单、成本低廉、可回收利用等特点,在环境污染治理研究中备受关注。固相萃取法则因具有富集倍数高、柱材料可重复利用以及试剂消耗小等优点,在污染物痕量分析中得到了广泛的应用。吸附法与固相萃取法的关键都在于选择高效的吸附材料。在众多吸附材料中,磁性纳米材料以其比表面积大、吸附性能好以及可快速固液分离等优点成为最热门的材料之一。本文通过对近5年的文献调查,综述了磁性纳米材料的不同制备方法、改性及其在污染物分析与去除中的应用现状,总结并展望了磁性纳米材料的发展前景,并提出了该研究中的一些需要改进的地方。Pollutants in water posses great impact on the environment and human health. It is of great significance to develop reliable detection and efficient removal methods for the monitoring and treatment of pollutants. Among various of separation and enrichment technologies,the adsorption method based on solidphase materials has attracted much attention in the study of environmental pollution control owing to the high efficiency,simple operation,low cost and recyclability. Solid phase extraction is widely used in trace analysis of pollutants due to the advantages of high enrichment ratio, reusable column materials and low reagent consumption. The key of adsorption and solid phase extraction is to choose efficient adsorption materials. Among many adsorption materials,magnetic nanomaterials have become one of the most popular materials because of the large specific surface area,good adsorption performance and fast solid-liquid separation. In this paper,based on the literature investigation in the last five years,the different preparation and modification methods of magnetic nanomaterials as well as their application status in pollutant analysis and removal are reviewed. Meanwhile,the development prospect of the magnetic nanomaterials is summarized and prospected,and some areas that need to be improved in this research field are proposed.

关 键 词：磁纳米材料 磁固相萃取 吸附 污染物分析与去除 

分 类 号：O615.45[理学—无机化学] X132[理学—化学]