Fig. 6: Construction of a PEC sensing platform for glyphosate detection.

a Schematic illustration of the CuO@PtNC/Fe-N-C-based PEC sensing mechanism. b Photocurrent responses CuO@PtNC/Fe-N-C/ITO with different concentrations of glyphosate. c Calibration curve of the CuO@PtNC/Fe-N-C-based PEC sensor within the range of 1-1000 ng/mL for glyphosate. Error bars are based on the standard deviation of the mean (n = 3). Selectivity (d) and stability (e) of the CuO@PtNC/Fe-N-C-based sensor. The error bars represent the standard deviation of three independent measurements. Source data for Fig. 6 are provided as a Source Data file.