Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province, National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization, Huaiyin Institute of Technology, Huai'an, 223003, China.
Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province, National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization, Huaiyin Institute of Technology, Huai'an, 223003, China.
Chemosphere. 2022 Oct;304:135312. doi: 10.1016/j.chemosphere.2022.135312. Epub 2022 Jun 13.
The synthesis and application of magnetic nanosorbents to remove emerging pollutants have been considered the best environmental remediation and sustainability option. Incorporating magnetism shortens the treatment time and allows the sorbent to be recovered quickly using external magnetic with many cycles. The implementation of magnetic solid-phase extraction (MSPE) using magnetic materials of different shapes, sizes, and surface morphology can be a valuable tool in applying materials to prepare analytical samples. In MSPE applications, materials with strong magnetic domain can be used as precursors for constructing magnetic composite as a promising sorbent. This article focuses on the most recent and exceptional applications of magnetic adsorbents for preconcentration and removal purposes. Magnetic adsorbents, such as nanoparticles (NPs), foam, sponges, nanocomposites, hydrogels, and beads with multifunctional attributes have been comprehensively studied in terms of preparation procedures, limitations, advantages, and interactions between pollutants and magnetic composites. The role of magnetic sorbents in sample preparation methods, such as simple solid-phase extraction and microextraction, as well as sorptive extraction using a stir bar, was also examined. The use of magnetic adsorbents with analytical techniques, such as solid-phase extraction and solid-phase microextraction improves the method for preparing samples concerning the influential role of magnetic adsorbents. Towards the end, promising features and future outlook are also directed.
将磁性纳米吸附剂用于去除新兴污染物的合成和应用被认为是最佳的环境修复和可持续性选择。引入磁性可以缩短处理时间，并通过外部磁场快速回收吸附剂，可进行多次循环。使用不同形状、尺寸和表面形态的磁性材料实施磁固相萃取（MSPE），可以成为应用材料制备分析样品的有价值工具。在 MSPE 应用中，具有强磁畴的材料可用作构建磁性复合材料的前体，这是一种很有前途的吸附剂。本文重点介绍了用于预浓缩和去除目的的磁性吸附剂的最新和杰出应用。磁性吸附剂，如纳米颗粒（NPs）、泡沫、海绵、纳米复合材料、水凝胶和具有多功能属性的珠，已在制备程序、局限性、优点以及污染物与磁性复合材料之间的相互作用方面进行了全面研究。还研究了磁性吸附剂在样品制备方法中的作用，如简单的固相萃取和微萃取，以及使用搅拌棒的吸附萃取。使用磁性吸附剂与固相萃取和固相微萃取等分析技术相结合，可以提高样品制备方法的效率，这主要得益于磁性吸附剂的影响力。最后，还探讨了其有前景的特性和未来展望。
