Title : Green synthesis of carbon dots and its application in compounds
Abstract:
Traditional cadmium-based and lead-based quantum dots exhibit excellent luminescent properties, but they are inherently toxic and cause environmental pollution. Environmentally friendly carbon-based quantum dots have gradually come into view and are receiving increasing attention. Carbon quantum dots, abbreviated as CQDs or CDs, have been a research hotspot in the field of nanomaterials, especially after quantum dots were awarded the 2023 Nobel Prize in Chemistry. Compared to traditional quantum dots, CDs are non-toxic and environmentally friendly. As an important member of the quantum dot family, the preparation and application research of CDs are becoming increasingly extensive and in-depth.
In recent years, we have utilized electrochemical methods to synthesize carbon quantum dots on a green and large scale. These CDs exhibit characteristics such as uniform particle size, graphitized core, high atomic occupancy on the particle surface, and abundant oxygen-containing functional groups on the particle surface. By incorporating these CDs into the in-situ polymerization process of polymers, we obtain CDs/polymer composite materials with far-infrared, antibacterial, fluorescent, and flame-retardant properties. It is found that low-carbon and environmentally friendly green preparation technology can be scaled up, and the obtained CDs have multiple effects such as antibacterial, far-infrared, flame retardant, fluorescence, etc. in composite materials such as nylon, polyester and other polymers.
The composite materials obtained by in-situ polymerization have excellent performance, rich application scenarios, flexible addition methods, and no special equipment requirements, which are highly welcomed by the industry. It is expected that there will be formal industrial application products on the market in the near future.
