In this work, ZIF-8@poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) composite was synthesized by facile ultrasonic mixing method and utilized as electrode material for sensitive electrochemical determination of dichlorophenol (Dcp). Data from scanning electron microscopy (SEM), transmission electron microscope (TEM), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD)and electrochemical impedance spectroscopy (EIS) demonstrate that PEDOT:PSS wrapped ZIF-8 was successfully synthesized. The encapsulated structure endows the composite excellent electrical conductivity, good stability, and high electrocatalytic activity. Thanks to the effect of synergistic enhancement between material components, the ZIF-8@PEDOT:PSS electrode exhibits an excellent electrocatalytic behavior for Dcp determination with low limit of detection (LOD, 0.01 μM), wide linear range response (0.03 μM~10.0 μM). Furthermore, the proposed sensor displays high selectivity, stability, repeatability and reproducibility, and shows a good recovery to Dcp detection in lake water sample.

本文采用简便的超声混合法合成了ZIF-8 @聚（3,4-亚乙二氧基噻吩）：聚苯乙烯磺酸盐（PEDOT：PSS）复合材料，并作为电极材料对二氯酚（Dcp）进行了灵敏的电化学测定。扫描电子显微镜（SEM），透射电子显微镜（TEM），X射线光电子能谱（XPS），X射线衍射（XRD）和电化学阻抗谱（EIS）的数据表明，成功包裹了PEDOT：PSS的ZIF-8合成的。包封的结构赋予复合材料优异的导电性，良好的稳定性和高的电催化活性。由于材料组件之间的协同增强效果，ZIF-8 @ PEDOT：PSS电极具有出色的Dcp测定电催化性能，检测限低（LOD，0.01μM），线性范围响应宽（0.03μM〜10.0μM）。此外，所提出的传感器显示出高的选择性，稳定性，可重复性和可重复性，并且对湖水样品中的Dcp检测具有良好的回收率。