二硫化钼的制备及其电化学传感应用研究进展

Progress in Preparation of Molybdenum Disulfide and its Application in Electrochemical Sensors

随着社会的不断发展和进步,食品安全、环境保护、生物反恐、临床检验等领域对快速、高灵敏和高选择性检测样品的传感器件的需求不断增加。电化学传感器可实现快速、灵敏、简便、低成本和在线检测,而纳米材料的电化学信号检测放大作用为提高电化学传感器性能提供了极大动力。二硫化钼(MoS_(2))因其独特的带隙和结构以及优异的性能而被广泛应用于多个领域,是目前研究人员讨论热度最高的纳米材料之一。首先详细总结了二硫化钼的“自上而下”和“自下而上”两大类制备方法,接着重点总结了二硫化钼及其复合材料在生物分子、药物分子以及环境污染物的电化学传感器构建方面的应用研究,最后对基于二硫化钼及复合材料在电化学传感方面所面临的机遇和挑战进行了讨论。

With the continuous development and progress of society,the demand for fast,highly sensitive and highly selective sensors for sample detection is increasing in food safety,environmental protection,bioterrorism,clinical laboratory and other fields.Electrochemical sensors can achieve rapid,sensitive,simple,low-cost and on-line detection,and the electrochemical signal detection amplification of nanomaterials provides a great power to improve the performance of electrochemical sensors.Molybdenum disulfide(MoS_(2))has been widely used in many fields due to its unique band gap,structure and excellent properties.It is one of the most popular nanomaterials discussed by researchers at present.In this review,we first summarized the“top-down”and“bottom-up”preparation methods of molybdenum disulfide in detail,and then summarized its application and composite materials in the construction of electrochemical sensors for biomolecules,drug molecules and environmental pollutants.Finally,the opportunities and challenges in electrochemical sensing based on MoS_(2) and composite materials are discussed.