Electrochemical Sensors Based on Reduced Holey Graphene for Detection of Carbendazim

Reduced holey graphene (rHG) has a large number of nanopores and a 3D porous network. As the pore size of the in-plane hole becomes larger, the defect density and the number of edges of rHG increase, which is conducive to accelerating electron transfer and exhibiting excellent electrochemical performance. The electrochemical sensor based on rHG successfully detects carbendazim in the concentration range of 0.1−100 μM with low detection limit (13.14 nM) and the sensitivity reaching to 22.541 μA μM −1 cm −2 . Furthermore, the sensor exhibits outstanding anti-interference, stability, and satisfactory recoveries in real samples.