The Electrochemical Detection of Alizarin Red at Electrofabricated CeO2-Reduced Graphene Oxide Nanostructures

Abstract

Cerium oxide-reduced graphene oxide (CeO2-rGO) nanostructures were successfully fabricated on indium tin oxide (ITO) electrode surface using one-pot electrochemical technique. The prepared nanostructures and modified surfaces (CeO2-rGO/ITO) were investigated for the electrochemical determination of Alizarin red (AR). Firstly, electrocatalytic activities of different modified surfaces were compared by cyclic voltammograms (CVs). For further analysis, concentration-dependent measurements were recorded using differential pulse voltammetry (DPV). The detection limit of AR on the CeO2-rGO/ITO electrode was calculated as 1.9 µM. The modified surface was successfully used to detect AR, which may add a new dimension to the detection of Alizarin derivatives materials.

Keywords

• Alizarin Red
• Cerium Oxide
• Electrochemical Deposition
• Reduced Graphene Oxide

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