基于纳米纤维素和碳点的荧光复合材料的制备与应用研究进展

Research Progress in Preparation and Application of Fluorescent Composites Based on Nanocellulose and Carbon Quantum Dots

碳点是一种新型的零维荧光纳米材料,具有优异的光学性能、高热稳定性和化学稳定性,是近几年的一个研究热点。从天然生物质中提取的纳米纤维素,具有比表面积大、环境友好和可生物降解等特点。以纳米纤维素为载体掺杂碳点制备的复合材料兼具优异的荧光性能和机械性能,具有重要的应用价值。本文综述了基于纳米纤维素和碳点的荧光复合材料的制备与应用,简要介绍了碳点的性质和制备,论述了纳米纤维素基荧光碳点水凝胶、薄膜以及气凝胶和油墨等复合材料的制备方法及相关应用,并对纳米纤维素和碳点的荧光复合材料的发展进行展望。

Carbon dot is a new type of zero-dimensional fluorescent nanomaterial with excellent optical properties,high thermal stability and chemical stability,which has been a research hotspot in recent years.Nanocellulose extracted from natural biomass has the characteristics of large specific surface area,environmental friendliness and biodegradability.The composite materials prepared by doped carbon dots with nanocellulose as the carrier have excellent fluorescence properties and mechanical properties,and have important application value.In this article,we first review the preparation and application of fluorescent composites based on nanocellulose and carbon dots,followed by a brief introduction to the properties and preparation of carbon dots.Then,we further discuss the preparation methods and related applications of nanocellulose-based fluorescent carbon dots hydrogel,films,aerogels and inks.Finally,we look forward to the development of fluorescent composites based on nanocellulose and carbon dots.