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基于纳米材料的优异特性,根据文献采用一步液相反应法,制备了六边形纳米CuⅠ.并将其制成碳糊电极,采用经典的三电极系统:CuⅠ修饰的碳糊电极为工作电极,饱和KCl的Ag/AgCl电极为参比电极,铂片为对电极,在不同浓度的Cd2+溶液中,用电化学交流阻抗方法研究了其对Cd2+的电化学行为,实验结果表明电荷传递电阻Ret随着Cd2+浓度的增加而减小,实现了CuⅠ对Cd2+的电化学传感.该分析方法操作简单易行,具有潜在的应用价值,而且这些研究结果拓展了纳米材料修饰电极在电分析化学中的重要意义.
Based on the excellent properties of nanomaterials, hexagonal nanocrystalline CuI was prepared by a one-step liquid-phase reaction method according to the literature, and was made into a carbon paste electrode. The classic three-electrode system was used: CuI modified carbon paste electrode as the working electrode, The electrochemical behavior of Cd2 + was studied by means of electrochemical impedance spectroscopy in different concentration of Cd2 + solution. The results show that the charge transfer resistance Ret And the concentration of Cd2 + is decreased, the electrochemical sensing of Cu2 to Cd2 + is realized.The method is simple and easy to operate and has potential application value, and these results extend the application of nano-materials modified electrode in electroanalytical chemistry Significance.