Silver nanoparticles-supported graphitic-like carbon nitride for the electrochemical sensing of nitrobenzene and its derivatives

Nitrobenzene (NB) is toxic even at low concentrations and hence its contamination in the environment a pervasive concern. The electrochemical techniques have emerged as rosy method to sense degrade NB graphitic carbon nitride (g-C3N4) catalysts are found be promising for this. In this study, silver nanoparticles (AgNPs)-decorated n-[3-(trimethoxysilyl)propyl]ethylenediamine (EDAS)-modified nanocomposites [EDAS/(g-C3N4-Ag)NC] having various prepared through facile applied sensing of derivatives. UV–vis absorption edge 430 nm together with broad surface plasmon resonance (SPR) peak 450 indicates existence AgNPs on g-C3N4 nanosheets. FTIR spectra endorse presence nanosheets composite. Ag EDAS/(g-C3N4-Ag)NC confirmed by transmission electron microscopy, energy dispersive X-ray analysis, cyclic voltammetry (CV). nanocomposite 2 mM Ag+ shows superb electrocatalytic activity toward reduction nitrobenzene Sensitivity modified electrode limit detection (LOD) assessed square wave 0.594 A M−1 cm−2 µM, respectively, linear range 5–50 µM.