Carbon-Based Electrochemical Sensor for the Detection and Degradation of Persistent Toxic Carbendazim in Soil and Water Sample

The carbendazim (CBM) electrochemical performance was analyzed using a glassy carbon electrode (GCE) in a 0.2 M phosphate buffer solution. An enhanced peak current of CBM was observed at GCE when the surface was modified with Vat Violet 2R (VVR) dye. The VVR was electro-polymerized on the GCE surface utilizing voltammetric techniques. The constructed GCE presented excellent electrocatalytic behavior for the electro-oxidation of CBM in a 0.2 M PB of 3.0 pH. A well-resolved peak of the CBM with enhancement in the current was obtained for the developed GCE. The impact of electroanalytical parameters such as accumulation time, temperature variation, pH, heterogeneous rate, sweep rate, activation energy, transfer coefficient, and the total number of electrons and protons transferred have been evaluated. Like water and soil, the actual samples were investigated using voltammetric techniques. The developed sensor is sensitive for analyzing CBM through detection and quantification limits of CBM.

Automated summary

In this study, the electrochemical performance of carbendazim (CBM) was analyzed. It was found that Vat Violet 2R (VVR) dye-modified glassy carbon electrode (GCE) can enhance the peak current of CBM and exhibit excellent electrocatalytic behavior.