碳量子点的合成、性质及其应用∗

摘要

Carbon quantum dots (CQDs,C-dots or CDs),a new type of carbon materials,less than 10 nm in size,have a lot of excellent performance,such as superior solubility in water,chemical inertness,low toxicity, easy functionalization,resistance to photobleaching and good photostability,having attracted widespread atten-tion as a rising star in nanocarbon family in recent years.Since the phenomenon of bright colorful light from car-bon quantum dots was reported in 2006,research groups around the world have begun to investigate the carbon quantum dots.CQDs produced from various synthetic strategies find their wide values in more and more fields, especially in biomedicine,optoeletronics,catalysis and sensors.In this review,we describe the recent progress in the field of CQDs,focusing on their synthetic methods,size control,modification strategies,photoelectric properties,luminescent mechanism,and applications in biomedicine,optoelectronics,catalysis and sensor is-sues.%碳量子点(CQDs,C-dots or CDs)是一种新型的碳纳米材料,尺寸在10 nm以下,具有良好的水溶性、化学惰性、低毒性、易于功能化和抗光漂白性、光稳定性等优异性能,是碳纳米家族中的一颗闪亮的明星。自从2006年[1]报道了碳量子点(CQDs)明亮多彩的发光现象后,世界各地的研究小组开始对 CQDs 进行了深入的研究。最近几年的研究报道了各种方法制备的CQDs在生物医学、光催化、光电子、传感等领域中都有重要的应用价值。这篇综述主要总结了关于 CQDs的最近的发展,介绍了 CQDs 的合成方法、表面修饰、掺杂、发光机理、光电性质以及在生物医学、光催化、光电子、传感等领域的应用。