Abstract In response to the difficulty of understanding the microscopic,abstract,and invisible movement of ions in electrolytic cells,calcein was selected as a fluorescent tracer,U-shaped tubes and test tubes were used as electrolysis devices,and copper and iron plates were used as electrode materials to explore the real-time movement path of ions in different electrolyte solutions without binding the free diffusion of ions. The experiment dynamically presented the ion movement process through fluorescence changes,clarifying that the electric field effect was the main reason for the directional movement of ions between the two poles,and exploring the influence of electrolysis devices and electrolyte solution types on the micro mass transfer process of electrolysis cells. Intended to help students establish a logical connection between electric field action and ion directional movement,develop their core competencies of “evidence reasoning and model cognition”,and enhance teaching effectiveness.
WU Xiao-Chun, YOU Xiao-Huan, RUAN Jiang-Qian-Yu. Experimental Design of Dynamic Visualization of Ion Movement Path in Electrolytic Cell Using Fluorescent Dye[J]. Chinese Journal of Chemical Education, 2026, 47(1): 114-120.
