Determination of fungicide at Ru-doped TiO2/reduced graphene oxide decorated electrochemical sensor

The nanoparticles (NPs) of ruthenium-doped titanium dioxide (Ru-TiO2) and reduced graphene oxides (rGO) are chosen for modifying the carbon paste electrode (CPE). The Ru-TiO2 NPs were prepared using the liquid impregnation technique and characterized using scanning electron microscopy (SEM) and energy dispersive Xray analysis (EDX) techniques. In the present work, 2-phenylphenol (2-PHP) detection and quantification was carried out using Ru-TiO2 NPs and rGO at CPE. Voltammetric techniques like cyclic voltammetry (CV) and square wave voltammetric techniques (SWV) were utilized for the study. The greatest peak current was recorded at a pH of 7.0, as per the pH study results. The electrochemical process involves the same number of protons and electrons. The concentration variation of 2-PHP was studied using SWV technique. Actual samples were analyzed using the suggested electrode such as water, vegetables, and fruits extract.