Two-Dimensional Cobalt-Doped Ti 3 C 2 MXene Nanozyme-Mediated Homogeneous Electrochemical Strategy for Pesticides Assay Based on In Situ Generation of Electroactive Substances

Common homogeneous electrochemical (HEC) sensors usually suffer from the drawbacks of high background signal, low signal-to-noise ratio, and even false positive results due to the preaddition of electroactive substances. Thus, it is necessary to develop novel HEC sensors based on in situ generation of electroactive substances to overcome these shortcomings, which, however, is underexplored. In this work, two-dimensional (2D) nanozymes, i.e., cobalt-doped 2D Ti3C2 MXene nanosheets (CMNSs), with excellent peroxidase-like properties were utilized to develop HEC sensors based on the in situ generation of electroactive substances for organophosphate pesticides (OPs) detection. The 2D CMNSs were synthesized via a…

• QA
  Qingdao Agricultural University

  Award: 665-1121016
• NN
  National Natural Science Foundation of China

  Awards: 22104070, 22076090
• NS
  Natural Science Foundation of Shandong Province

  Awards: ZR2020ZD37, ZR2021QB021
• GO
  Government of Shandong Province