基于植酸锆/普鲁士蓝复合膜的电催化行为研究

Zirconium phytate/Prussian blue composite membrane and its electrocatalytic behavior

通过层层自组装技术,构建植酸锆/普鲁士蓝(Zr-IP6/PB)多层结构膜.基于普鲁士蓝(PB)对双氧水(H2O2)有很高的电催化性能,加之5层植酸锆/普鲁士蓝膜多孔结构有利于传质过程,该H 2O 2传感器具有高灵敏度和高选择性.实验结果显示:修饰电极对H2O2响应的物质的量浓度范围为2.00×10^-5~1.76×10^-3 mol·L^-1,线性相关系数R=0.9989.

The zirconium phytate/Prussian blue(Zr-IP6/PB) multilayer structure film was constructed by layer-by-layer self-assembly technology.Since Prussian blue(PB) has high electrocatalytic performance for H2O2,and the 5-layer Zr-IP6/PB membrane with porous structure is beneficial to the mass transfer process,the as-prepared hydrogen peroxide sensor shows high sensitivity and selectivity.The result showed that the linear concentration response range of such modified electrode on H2O2 is from 2.00×10 ^-5 to 1.76×10^-3 mol·L^-1 ,and the linear correlation coefficient (R) is 0.998 9.