Electrochemical determination of silver nanoparticles on flexible laser reduced graphene oxide sensor

Abstract

In this work, a novel electrochemical sensor is fabricated for the determination of the silver nanoparticles (AgNPs) on the flexible substrate polyethylene Terephthalate (PET) on laser reduced graphene oxide for the reduction of silver nanoparticles. The morphology and electrochemical behaviour of the laser reduced graphene oxide on flexible substrate for silver nanoparticles was characterized by scanning electron microscopy (SEM), Raman spectroscopy, Fourier transform infrared spectroscopy (FT-IR) and cyclic voltammetry (CV). The obtained results revealed that silver nanoparticles on laser reduced graphene oxide are in different shapes and it is estimated to be a particle’s size 70 nm. The cyclic voltammetry potential window conditions were optimized for the rapid determination of the silver nanoparticles. The optimization of the laser parameters were investigated to obtain a high conductive surface of the laser graphene oxide sensor. The proposed laser reduced graphene oxide on the flexible substrate for the electrochemical determination for silver nanoparticles sensor was successfully applied. The rapid determination of silver nanoparticles has been presented.