论文部分内容阅读
采用循环伏安法电化学聚合制备了聚吡咯(PPY)/聚砜(PSF)复合膜修饰电极。结果发现:复合膜的正面(与工作电极接触的一面)是黑色的;而反面(与溶液接触的一面)是白色的。复合膜的表面形态和化学组分分别用SEM和FTIR表征,用电化学循环伏安法对PPY/PSF复合膜修饰电极的电化学催化性能进行了研究。实验结果表明:所得复合膜修饰电极电化学可逆性好并且对对苯二酚有显著的催化效果,其氧化峰电流在5~30mM的范围内与对苯二酚的浓度呈线性关系,表明该复合膜修饰电极在对苯二酚H2Q的监测方面将有潜在的用途。
Polypyrrole (PPY) / polysulfone (PSF) composite film modified electrodes were prepared by cyclic voltammetry electrochemical polymerization. As a result, it was found that the front side of the composite film (the side in contact with the working electrode) was black and the back side (the side in contact with the solution) was white. The surface morphology and chemical composition of the composite membrane were characterized by SEM and FTIR, respectively. The electrochemical catalytic performance of PPY / PSF composite membrane modified electrode was studied by electrochemical cyclic voltammetry. The experimental results show that the composite electrode modified electrode has good electrochemical reversibility and remarkable catalytic effect on hydroquinone. The oxidation peak current has a linear relationship with the concentration of hydroquinone in the range of 5 ~ 30mM, Composite membrane modified electrodes will have potential applications in the monitoring of hydroquinone H2Q.