Fabrication of an efficient Isopropyl alcohol sensor based on facile Co3O4@Nd2O3 nanocomposites for environmental safety

Abstract

In this approach, Isopropyl alcohol is a toxic organic compound which electrochemically detected by cobalt oxide doped neodymium oxide nanocomposites (Co3O4@Nd2O3 NCs) as chemical sensor probe. Facile Co3O4@Nd2O3 NCs were prepared by facile wet-chemical process in alkaline media and were characterized by various conventional methods such as UV–Vis., FT-IR, XRD, FESEM, XPS, and EDS techniques. The prepared NCs were deposited onto the glassy carbon electrode (GCE) with the help of 5% nafion. The electrochemical technique was employed for the investigation of IPA sensor performances with Co3O4@Nd2O3 NCs probe such as selectivity, validity, sensitivity, linearity, and limit of detection. The calibration curve was plotted over linear concentration ranging from 0.0129 μM to 0.0129 M. The sensitivity, limit of detection (LOD), and limit of quantification (LOQ) were calculated from the slope of calibration plot and found as 22.152 nA mM−1 cm−2, 4.285 ± 0.2 nM, and 14.283 ± 0.67 nM respectively. The prepared chemical sensor was simple and friendly for the controlled usage of toxic chemicals.