• Krishnamurthy, G.
• Harisha, K. S.
• Chandruvasan, S.

Abstract

<jats:title>Abstract</jats:title><jats:p>The present study demonstrates the preparation of reduced graphene oxide (rGO) incorporated zirconium oxide (ZrO<jats:sub>2</jats:sub>) nanocomposite by using reflux method. The ZrO<jats:sub>2</jats:sub>/rGO was confirmed by using UV‐Vis, FT‐IR, XRD, SEM, and EDAX techniques. In photocatalysis examination, the selected Rose Bengal (RB) was degraded effectively using ZrO<jats:sub>2</jats:sub>/rGO composite (76 %) at 180 minutes which follows first order kinetics. The antioxidant property against 2,2‐diphenyl‐1‐picrylhydrazyl (DPPH) radicals was found to be 97 % activity with IC<jats:sub>50</jats:sub> value of 314.53 mg/mL. Electrode reversibility (E<jats:sub>O</jats:sub>‐E<jats:sub>R</jats:sub>), diffusion coefficient (D) and capacitance of rGO, ZrO<jats:sub>2</jats:sub> and ZrO<jats:sub>2</jats:sub>/rGO were measured by cyclic voltammetry method (CV). The electrochemical sensor detection of rGO, ZrO<jats:sub>2</jats:sub> and ZrO<jats:sub>2</jats:sub>/rGO composite were assessed in 1 M NaCl electrolyte using tartaric acid and grape juice green sensors. The prepared electrode material plays a significant role for improving dye removal, electrochemical, antioxidant and sensor detection.</jats:p>

Topics

• nanocomposite
• scanning electron microscopy
• x-ray diffraction
• zirconium
• Energy-dispersive X-ray spectroscopy
• cyclic voltammetry
• ion chromatography