Green synthesis of natural gomutra and honey doped CeO[formula omitted] nanocomposite for green sensor, cyclic voltammetry, photocatalysis and antioxidant studies

Abstract

The current study demonstrates, synthesis of cow urine and honey doped/CeO2 nanocomposite using simple reflux method and inexpensive process. The nanocomposite was characterized and confirmed by X-ray Diffractometer (XRD), Infrared Spectroscopy (IR), Scanning Electron Microscopy (SEM), TEM, Energy Dispersive X-ray spectroscopy (EDS), XPS, and UV–Visible (UV–Vis) spectroscopy techniques. The photocatalysis of methyl orange (MO) dye examined and degraded up to 92% and 93% using both cow urine and honey doped/CeO2 nanocomposite. Electrochemical reversibility (E0-ER), proton diffusion coefficient (D) was analyzed using 3M KCl electrolyte by cyclic voltammetry method (CV). The electrochemical sensor detection of tartaric acid and L-aspartic acid was assessed on developed material. The detection limits for tartaric acid were determined to be 2.09 μM and 3.58 μM, while for L-aspartic acid were 3.49 μM and 3.29 μM, respectively. Cow urine/CeO2 and honey/CeO2 had free radical scavenging activities of approximately 71.91 and 63.95%, respectively.