竹节隔碳量子点的制备及在荧光防伪中的应用  

Preparation of bamboo carbon quantum dots and their application in fluorescence anti-counterfeiting

作　　者：刘妍 李荣荣 LIU Yan;LI Rongrong(School of Furnishings and Industrial Design,Nanjing Forestry University,Nanjing 210037,Jiangsu,China)

机构地区：[1]南京林业大学家居与工业设计学院,江苏南京210037

出　　处：《浙江农林大学学报》2025年第2期402-409,共8页Journal of Zhejiang A&F University

基　　金：国家自然科学基金资助项目(32201642)。

摘　　要：【目的】探究竹节隔碳量子点绿色制备方法,提高废弃生物质材料利用效率和附加值。【方法】以竹材废弃物竹节隔为初始碳源,水为溶剂,采用一步水热法制备荧光碳量子点,通过透射电子显微镜、X射线衍射、红外光谱仪、X射线光电子能谱仪、紫外可见光光度计、荧光光谱等表征手段,对竹节隔碳量子点的微观形貌、化学结构和光学特性进行了表征与分析。【结果】所制备的竹节隔碳量子点形状为近圆形,其粒径分布为0~1.6 nm;绝对荧光量子产率为6.85%;具有优异的荧光特性,在365 nm波长紫外灯下呈现明显的蓝色荧光。【结论】制备的竹节隔碳量子点水溶液绿色环保、性能良好,可通过进一步优化设计,以期应用于家具木制品及人造板等木质材料荧光防伪领域。[Objective]The objective is to achieve a green method for the preparation of bamboo carbon quantum dots and to improve the utilization efficiency and added value of waste biomass materials.[Method]Fluorescent carbon quantum dots were prepared by a one-step hydrothermal method using bamboo waste materials(bamboo septa)as the initial carbon source and water as the solvent.The micro-morphology,chemical structure and optical properties of the carbon quantum dots of bamboo septa were characterized and analyzed by means of transmission electron microscopy,X-ray diffraction,infrared spectrometry,X-ray photoelectron spectroscopy,UV-visible photometry and fluorescence spectroscopy.[Result]The shape of the prepared carbon quantum dots had a near-circular shape,with a size distribution of 0-1.6 nm.The absolute fluorescence quantum yield was 6.85%,and they had excellent fluorescence properties,with a blue fluorescence under a 365 nm ultraviolet lamp.[Conclusion]The prepared carbon quantum dots aqueous solution is environmentally friendly and has good performance,which can be further optimized for application in the field of fluorescence anti-counterfeiting of wood materials such as furniture wood products and artificial boards.

关 键 词：竹节隔 碳量子点 荧光 荧光防伪 

分 类 号：TB383[一般工业技术—材料科学与工程]