科研项目式实验教学设计:废弃口罩变防伪标识荧光碳点  

Research Project-Based Experiment Teaching Design:Discarded Masks Conversion into Anti-Counterfeit Logo Fluorescent Carbon Dots

作　　者：苗彩琴 王群 朱孟春 刘志博 刘美雯 赵伟 吴晓宏 MIAO Cai-Qin;WANG Qun;ZHU Meng-Chun;LIU Zhi-Bo;LIU Mei-Wen;ZHAO Wei;WU Xiao-Hong(Department of Materials Chemistry,School of Chemical Engineering and Chemistry,Harbin Institute of Technology,Harbin 150001,China;The First High Grade School,Qitaihe 154600,China)

机构地区：[1]哈尔滨工业大学化工与化学学院,黑龙江哈尔滨150001 [2]七台河市第一中学,黑龙江七台河154600

出　　处：《化学教育（中英文）》2024年第6期36-41,共6页Chinese Journal of Chemical Education

基　　金：黑龙江省高等教育教学改革一般项目(202119)。

摘　　要：将废弃口罩转化成高价值的防伪加密荧光碳点材料科研项目设计转化为本科实验。该实验交叉化学、材料和环境多学科知识,融合新颖性、创造性和实用性,提供了一种环保策略,而且揭示了碳点的组织结构、表面化学态、电子跃迁及光学性能知识。通过该实验,可以培养学生基于电子-分子-纳米尺度的材料化学视角分析解决问题的能力,提升学生对理论知识的理解力、实验操作的执行力、团队协作的连接力和科学素养的创造力。This paper provided an environmentally friendly and cost-effective strategy for turning discarded masks into high-value fluorescent carbon dot material for anti-counterfeit encryption.The design of research project-based undergraduate teaching experiment involves a multidisciplinary intersection of chemistry,materials and environment,and combination of novelty,creativity and practicality.Moreover,the microstructure,surface chemical states,electronic transitions and optical properties of carbon dots were revealed and the abilities of analyzing and solving problems from the perspective of electron,molecule,nanoscale of material chemistry were formed,enhancing students'understanding of theoretical knowledge,execution of experiments,teamwork and creativity in scientific literacy.

关 键 词：废弃口罩 荧光碳点 科研项目式教学 防伪 

分 类 号：G642.423[文化科学—高等教育学] TB383.1-4[文化科学—教育学]