随着现代工业的迅速发展，生产过程中排出的有害重金属离子废水、印染废水等日益增加，寻找更为高效的水处理材料成为环境保护中亟待解决的问题。磁性壳聚糖微球是一种新兴的水处理吸附剂，对多种污染物都具有优良的吸附效果，再加上可回收重复利用的特点，受到了广泛关注。对磁性壳聚糖微球进行改性，可赋予它不同的功能特性。综述了不同交联剂制备磁性壳聚糖微球的研究现状，分别介绍了对壳聚糖外壳和Fe₃O₄磁核的改性方法、机理及其应用，并对磁性壳聚糖微球未来的研究趋势进行了展望。

With the rapid development of modern industry, heavy metal ion waste water, printing and dyeing wastewater discharged from the production process are increasing. Thus searching for more efficient water treatment materials has become an urgent issue in environmental protection. Magnetic chitosan microspheres are emerging water treatment absorbents, which draw lots of attention for their excellent absorption effects on various pollutants and the characteristics of being recovered and reused. More functional properties were introduced by modification. The preparation and relevant studies of magnetic chitosan microspheres, the modification methods, mechanism and application of chitosan and Fe₃O₄ are reviewed in this paper. Furthermore, their future development tendency are predicted.

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国家自然科学基金（21677020）；重庆市重点产业共性关键技术创新专项重点研发项目（cstc2017zdcy-zdyfX0015）