Research Project-Based Experiment Teaching Design: Discarded Masks Conversion into Anti-Counterfeit Logo Fluorescent Carbon Dots
MIAO Cai-Qin1, WANG Qun1, ZHU Meng-Chun2, LIU Zhi-Bo1, LIU Mei-Wen1, ZHAO Wei1, WU Xiao-Hong1**
1. Department of Materials Chemistry, School of Chemical Engineering and Chemistry, Harbin Institute of Technology, Harbin 150001, China; 2. The First High Grade School, Qitaihe 154600, China
Abstract 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.
MIAO Cai-Qin, WANG Qun, ZHU Meng-Chun, LIU Zhi-Bo, LIU Mei-Wen, ZHAO Wei, WU Xiao-Hong. Research Project-Based Experiment Teaching Design: Discarded Masks Conversion into Anti-Counterfeit Logo Fluorescent Carbon Dots[J]. Chinese Journal of Chemical Education, 2024, 45(6): 36-41.
