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Beilstein J. Nanotechnol. 2023, 14, 701–710, doi:10.3762/bjnano.14.56
Figure 1: Fabrication of the GQDs/GCE electrochemical nanosensor for the detection of malathion.
Figure 2: (a) UV–vis absorption spectrum and (b) photoluminescence spectra of GQDs.
Figure 3: (a) TEM image, (b) size distribution along with log-normal fit, (c) HRTEM image, and (d) AFM image ...
Figure 4: (a) XRD pattern and (b) EDX spectra (inset showing weight and atomic percent of carbon and oxygen) ...
Figure 5: (a) FTIR spectrum and (b) Raman spectrum of GQDs.
Figure 6: EIS measurement of 0.1 M KCl containing 0.05 M [Fe(CN)6]3−/4− at the bare GCE and the GQDs/GCE work...
Figure 7: (a) Cyclic voltammograms of 0.1 M KCl containing 0.05 M [Fe(CN)6]3−/4− at the bare GCE and GQDs/GCE...
Figure 8: Oxidative desulfurization of malathion into malaoxon.
Figure 9: (a) Differential pulse voltammograms of different concentrations of malathion (1 to 30 µM) at the GQ...
Figure 10: Differential pulse voltammogram of 1 µM malathion and 0.1 µM glyphosate using the GQDs/GCE working ...