Development of a sensitive ZnO/CuO/Au electrochemical sensor for measuring Glyphosate

Abstract

In addition to its low cost and stability, the sensor has numerous environmental sensing application possibilities. In this research, we use a ZnO/CuO structure that is structurally analogous to the PN junction, which speeds up electron flow and increases electrode sensitivity. We next modified the composite's surface with Gold Nanoparticles, so increasing the electrode's active area. We next examined the surface topography and microstructure of our manufactured electrodes using a variety of characterisation analytical methods. Finally, a series of electrochemical and photoelectrochemical studies were conducted to evaluate the Glyphosate sensing characteristics of the electrodes we had created.Testing revealed that the resulting electrodes had high electrical conductivity and, thus, enhanced sensitivity to Glyphosate. When compared to other herbicide sensors, the resulting electrode has a low detection limit and a decent detection range (6.9 μmol L−1 to 230 μmol L−1). Our manufactured sensor electrode has the potential to be a very sensitive composite electrode for use in modern herbicide detection sensors.