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作为以碳为骨架结构的新型纳米材料,碳点具有许多优良的性能,如发射波长可调、良好的光稳定性、抗光漂白、良好的水溶性以及易于生物偶联等.正是因为这些优点,碳点和其它碳质纳米材料(富勒烯、碳纳米管、石墨烯)一样受到了广泛的关注.电化学方法制备碳点具有条件温和、费用低廉、后处理简单等特点.另外,电化学方法在材料的表面结构分析以及发光机理的研究中也有其独特的优势.本文即就电化学方法在荧光碳点的制备以及发光机理探讨中的应用作了综述,并简略介绍了碳点在传感器中的应用,提出了优化电化学方法制备碳点的某些设想.
As a new type of carbon nanostructures, carbon dots have many excellent properties, such as adjustable emission wavelength, good light stability, photobleaching, good water solubility and easy bioconjugation, etc. It is precisely because these Advantages, carbon dots and other carbonaceous nanomaterials (fullerenes, carbon nanotubes, graphene) has received widespread attention.Ceramic electrochemical method has the advantages of mild conditions, low cost, simple post-processing characteristics.In addition, Electrochemical methods also have their unique advantages in the analysis of the surface structure of materials as well as in the study of the mechanism of light emission.In this paper, the electrochemical methods in the preparation of the carbon dots and the application of the light-emitting mechanism are briefly reviewed, and the carbon dots In the sensor application, put forward some ideas to optimize the preparation of carbon dots electrochemical method.