摘要
以桂花为原料,制备新型荧光材料——碳量子点,通过透射电镜(TEM)、傅里叶红外光谱(FTIR)、X射线电子能谱(XPS)和荧光光谱(FLS)测试,对产物的组成和结构进行表征,考察其荧光特性及金属荧光猝灭现象。同时以碳量子点的绿色简易制备为基础,设计了一系列有层次性和梯度性的创新性科普实验,开发美观有趣的荧光产品,展示碳量子点的美妙与用途。这些科普实验具有一定展示度,兼具科学性、趣味性和实用性,提升了学生的学习热情,也提高了公众对化学的认知和兴趣。
This study uses osmanthus as a raw material to prepare a novel fluorescent material—carbon quantum dots.The composition and structure of the product were characterized through transmission electron microscopy(TEM),Fourier-transform infrared spectroscopy(FTIR),X-ray photoelectron spectroscopy(XPS),and fluorescence spectroscopy(FLS).The fluorescence properties and the phenomenon of metal-induced fluorescence quenching were also investigated.Based on the green and straightforward preparation of carbon quantum dots,a series of innovative,hierarchical,and gradient scientific outreach experiments were designed.Aesthetic and engaging fluorescent products were developed to demonstrate the beauty and potential applications of carbon quantum dots.These outreach experiments are both scientifically sound and engaging,enhancing students’enthusiasm for learning while increasing the public’s understanding of and interest in chemistry.
作者
张灵棋
黄海容
李佳霖
吉丽
潘宇凡
叶美玲
陈翠雪
彭淑女
Lingqi Zhang;Hairong Huang;Jialin Li;Li Ji;Yufan Pan;Meiling Ye;Cuixue Chen;ShunüPeng(College of Chemistry and Chemical Engineering,Xiamen University,Xiamen 361005,Fujian Province,China)
出处
《大学化学》
2025年第8期298-306,共9页
University Chemistry
基金
2023年福建省大学生创新创业训练计划项目(FBJG20170277)
2024年第一批产学合作协同育人项目(231006655082219)。
关键词
碳量子点
桂花
制备
表征
科普
梯度
Carbon quantum dots
Osmanthus
Preparation
Characterization
Popularization of science
Gradient
