川木香水热法一步合成荧光碳量子点及光学性能研究  

One-step hydrothermal synthesis of photoluminescent carbon dots with Radix Vladimiriae and their optical properties

作　　者：赵华利 陈伟 李敏 邓祥[1,3] 黄小梅 ZHAO Huali;CHEN Wei;LI Min;DENG Xiang;HUANG Xiaomei(College of Chemistry and Chemical Engineering,Sichuan University of Arts and Science,Dazhou 635000,Sichuang,China;Dazhou Vocational College of Chinese medicine,Dazhou 635000,Sichuang,China;Key Laboratory of Exploitation and Study of Distinctive Plants in Education Department of Sichuan Province,Dazhou 635000,Sichuang,China)

机构地区：[1]四川文理学院化学化工学院,四川达州635000 [2]达州中医药职业学院,四川达州635000 [3]特色植物开发研究四川省高校重点实验室,四川达州635000

出　　处：《化学研究》2023年第1期58-63,共6页Chemical Research

基　　金：四川省科技厅应用基础研究项目资助(2019YJ0307);特色植物开发研究四川省高校重点实验室项目资助(TSZW2004,TSZW2005);达州市科技局应用基础研究项目资助(18YYJC0002,21YYJC0005);省级大学生创新创业训练计划项目资助(202210644017);四川文理学院大学生科研项目资助(X2021Z020)。

摘　　要：以中药材川木香原药为碳源,采用水热法一步合成了荧光碳量子点。通过水热法实验条件优化,获得制备荧光碳量子点的最佳实验参数,通过透射电镜(TEM)对荧光碳量子点进行形貌表征,通过X射线光电子能谱分仪(XPS)对荧光碳量子点进行元素组成分析,通过荧光光谱和紫外-可见吸收光谱对荧光碳量子点进行了光学性能研究。结果表明:川木香用量1.00 g,水热反应温度180℃,水热反应时间2.0 h时,制备得到的荧光碳量子点光学性能最佳。荧光碳量子点平均粒径为5 nm,主要含有C元素和O元素,最大激发波长为360 nm,对应的发射波长为420 nm,特征吸收峰为280 nm,量子产率为12.9%。The photoluminescent carbon dot was successfully synthesized with the Chinese medicinal material Radix Vladimiriae as the carbon source by one step hydrothermal method.The best experimental parameters for the preparation of photoluminescent carbon dots were obtained by optimizing experimental conditions by hydrothermal method.The morphology of photoluminescent carbon dots was characterized by transmission electron microscope(TEM),element composition of photoluminescent carbon dots was performed by X-ray photoelectron spectrometer(XPS),and optical performance was studied by photoluminescent and UV-visible absorption spectrum.The results show that the optical properties of the photoluminescent carbon dots are the best when the Radix Vladimiriae amount is 1.00 g,reaction temperature is 180℃and reaction time is 2.0 h.The photoluminescent carbon dots have an average particle size of 5 nm,containing mainly C and O elements,with a maximum excitation wavelength of 360 nm,a corresponding emission wavelength of 420 nm,a characteristic absorption peak of 280 nm,and a quantum yield of 12.9%.

关 键 词：川木香 水热法 荧光碳量子点 光学性能 

分 类 号：TQ914.1[化学工程]