A high performance electrochemical sensor for carbendazim based on porous carbon with intrinsic defects

文献类型： 外文期刊

第一作者： Wang, Yanli

作者： Wang, Yanli;Xie, Liping;Yan, Feiyan;Luo, Lihong;Jiang, Cuiwen;Liang, Jing;Li, Tao;Ya, Yu;Huang, Xinlong;Yang, Jing;Huang, Kejing

作者机构：

关键词： Hierarchically porous carbon; Defect Engineering; High performance electrochemical sensor; Carbendazim

期刊名称：JOURNAL OF ELECTROANALYTICAL CHEMISTRY （ 影响因子：4.598； 五年影响因子：4.277 ）

ISSN： 1572-6657

年卷期： 2022 年 915 卷

页码：

收录情况： SCI

摘要： In this study, we describe a new and straightforward method of electrode modification for introducing intrinsic defects into hierarchically porous carbon (D-HPC), and we use this method to fabricate a robust carbendazim (CBZ) electrochemical sensor. The characterization results of D-HPC demonstrate that this material possesses a hierarchical porous structure (micropores, mesopores, and macropores) with a large specific surface area (1508.9 m(2) g(-1)). The unique structure and excellent electrical conductivity of D-HPC significantly enhance the electrochemical properties of the CBZ sensor. The active sites formed by defect engineering resulted in a high loading of CBZ molecules on the electrode surface, which allows for the sensor to possess excellent sensitivity. Under optimized conditions, the linear range of the sensor for determination of CBZ concentration was 0.010-1.0 mu M, and the detection limit was 0.0061 mu M. Lastly, we demonstrate the practical applicability of the sensor by using it to determine the concentration of CBZ in river water, lettuce, and soil samples.

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