磁性纳米材料制备及其在传感器检测领域的应用

在外界磁场的驱动下, 磁性纳米材料能迅速完成对目标物的吸附及其与基质的分离。基于这点, 磁性纳米材料在吸附分离, 环境治理, 食品安全等方面已有较多应用, 并将有更大的应用前景。本文主要对磁性纳米材料的制备方法、富集分离、传感器检测3个方面的研究进展进行介绍。其中, 磁性纳米材料的制备方法包括固、液和气相合成法。富集分离方法介绍了磁性纳米材料对有机污染物的吸附分离, 例如微塑料; 对无机金属离子的吸附分离, 例如铬离子, 铅离子。在传感器检测方面主要介绍了磁性纳米材料在电化学传感器、生物传感器、光学传感器方面的应用。

Preparation of magnetic nanomaterials and application in sensor detection

Driven by the external magnetic field, the magnetic nanomaterials can quickly adsorb the target materials and separate them from the substrate. Based on this, magnetic nanomaterials have been widely used in adsorption and separation, environmental management, food safety and other aspects, and will have a greater application prospect. This paper introduced the research progress in preparation, enrichment and separation of magnetic nanomaterials and sensor detection. The preparation method of magnetic nanomaterials included solid, liquid and gas combination method. The adsorption and separation of organic pollutants (such as microplastics) and inorganic metal ions (such as chromium ions, lead ions) by magnetic nanomaterials were introduced. The applications of magnetic nanomaterials in electrochemical sensors, biosensors and optical sensors also were introduced.