采用分布电沉积法在ITO导电玻璃表面制备Co-ZnO电极传感器,并将其用于邻苯二酚的分析检测。利用SEM、EDS和XRD对制备的Co-ZnO电极进行表面形貌、元素组成和晶体结构分析,并利用循环伏安法和计时电流法对其进行电化学分析。结果表明,Co-ZnO电极对邻苯二酚具有非常明显的电催化活性,通过测试分析得到其线性范围为0.01~10 mmol/L、灵敏度为1 429.67 mA/(mM·cm²)、检出限为0.87μmol/L。通过干扰试验可知,Co-ZnO电极对其有良好的选择性,且电极的重现性良好。

A Co-ZnO electrode sensor is prepared on the surface of ITO conductive glass by a distributed electrodeposition method,and used for the analysis and detection of catechol.The surface morphology,elemental composition and crystal structure of the prepared Co-ZnO electrodes are analyzed by means of SEM,EDS and XRD.Their electrochemical property is analyzed through using cyclic voltammetry and chronoamperometry.The results show that the Co-ZnO electrode has very obvious electrocatalytic activity on catechol.The linear detection range of catechol by Co-ZnO electrode is 0.01-10 mmol·L^-1,the sensitivity is 1,429.67 mA·mM^-1·cm^-2,and the detection limit is 0.87 μmol·L^-1.It is found through interference test that Co-ZnO electrodes have good selectivity and reproducibility.

马寅(1998-),男,硕士生,研究方向为电化学非酶传感器,1176989802@qq.com;李宇春(1973-),男,博士,教授,研究方向为电力系统金属设施的腐蚀及防腐,通讯联系人,iamlyc@263.net。