Institute of Chemistry, University of the Punjab, Quaid-e-Azam Campus, Lahore 54590, Pakistan.
National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, Pakistan.
Analyst. 2021 Apr 26;146(8):2463-2474. doi: 10.1039/d0an02399j.
Optical sensors are always fascinating for chemists due to their selectivity, sensitivity, robustness and cost-effective nature. Moreover, these sensors provide the facility of onsite detection without employing any instrumental technique. A number of such visual sensors including carbon dots (CDs) have been reported for selective detection of many ionic and molecular species. This review elaborates the utilization of CDs as colorimetric sensors. Carbon dots (CDs) are being synthesized from a large number of natural and synthetic carbon source materials using a variety of methods. CDs can also be tuned chemically by doping, to impart the desired sensing properties. Therefore, the development of CDs with selective sensing properties enables extremely low detection limits and has thus gained substantial attention.
光学传感器因其选择性、灵敏度、稳健性和高性价比而一直令化学家着迷。此外，这些传感器提供了无需使用任何仪器技术的现场检测设施。已经有许多这样的视觉传感器，包括碳点 (CDs)，被报道用于选择性检测许多离子和分子物种。本综述详细阐述了碳点 (CDs) 作为比色传感器的应用。碳点 (CDs) 是通过多种方法使用大量天然和合成碳源材料合成的。通过掺杂，CDs 也可以进行化学调谐，赋予所需的传感特性。因此，开发具有选择性传感特性的 CDs 可以实现极低的检测限，因此引起了广泛关注。
