Phosphate-mediated Silver Nanodentrites Modified Glassy Carbon Electrode for the Determination of Nitrophenol

摘要

We present the simple electrochemical fabrication of silver nanodendrites (AgNDs) modified glassycarbon electrode (GCE) for the sensitive determination of nitrophenol (NP) through linear sweepvoltammetry (LSV). The surface morphology and elemental composition of the prepared AgNDs wereinvestigated using FESEM (Field Emission Scanning Electron Microscopy), EDX (ElectronDiffraction X-ray spectroscopy) and XRD (X-ray diffraction) spectroscopic techniques. The calculatedelectroanalytical parameters in terms of linear range (20–1380 μM), limits of detection (1.76 μM) andsensitivity (1970 μA mM–1 cm–2) evidence the excellent electrocatalytic activity of AgNDs/GCEtowards NP determination. The fabricated AgNDs modified electrode possess good selectivity for thedetection of NP among other interfering agents. Our constructed LSV sensor for the determination ofNP additionally displays appreciable stability and reproducibility.