Innovative Experiment: Study on the Solution Structure and Physical Properties of NaCl Aqueous Solution Under Micro Electric Field
LI Fei1,2, ZHANG Ding-Yu1, FENG Ming-Yuan1, YU Xiao-Qing3, HE Yan4, ZHANG Ting-Ting4, LIU Jie1,2, GUO Xiao-Fu1,2, WANG Jing1,2, JI Zhi-Yong1,2**, LANG Li-Ying4
1. School of Chemical Engineering and Technology, Hebei University of Technology, Engineering Research Center of Seawater Utilization, Ministry of Education, Tianjin 300401, China; 2. Hebei Collaborative Innovation Center of Modern Marine Chemical Technology, Tianjin 300401, China; 3. School of Architecture or Art Design, Hebei University of Technology, Tianjin 300401, China; 4. Undergraduate School, Hebei University of Technology, Tianjin 300401, China
Abstract Electrodialysis used for seawater salt production is a mature industrial technology, but the microscopic nature of the ion migration process under the electric field is not clear. Combined with the characteristics of electrodialysis electric field strength and solution structure research methods, innovative experiments were designed to explore the microstructure of the solution. Molecular dynamics simulation and Raman spectroscopy were used to study the microstructure of NaCl aqueous solution under 0 V and 4.5 V electric field conditions. The viscosity was analyzed to explore the relationship between the physical properties and the microstructure of the solution. The experiments are high-ordered, innovative and challenging, students will be guided to explore the microscopic nature of materials and will be cultivated innovative thinking.
LI Fei, ZHANG Ding-Yu, FENG Ming-Yuan, YU Xiao-Qing, HE Yan, ZHANG Ting-Ting, LIU Jie, GUO Xiao-Fu, WANG Jing, JI Zhi-Yong, LANG Li-Ying. Innovative Experiment: Study on the Solution Structure and Physical Properties of NaCl Aqueous Solution Under Micro Electric Field[J]. Chinese Journal of Chemical Education, 2024, 45(20): 43-50.
