One-pot synthesis of α-Fe2O3 nanoparticles-decorated reduced graphene oxide for efficient nonenzymatic H2O2 biosensor

Authors

Ming-Yan Wang, University of WollongongFollow
Tao Shen, Huaihai Institute of Technology
Meng Wang, University of WollongongFollow
Dong-En Zhang, Huaihai Institute of Technology
Zhi-wei Tong, Huaihai Institute of Technology
Jun Chen, University of WollongongFollow

RIS ID

83928

Publication Details

Wang, M., Shen, T., Wang, M., Zhang, D., Tong, Z. & Chen, J. (2014). One-pot synthesis of α-Fe2O3 nanoparticles-decorated reduced graphene oxide for efficient nonenzymatic H2O2 biosensor. Sensors and Actuators, B: Chemical, 190 (January), 645-650.

Abstract

Hematite nanoparticles (α-Fe2O3) are successfully decorated on the reduced graphene oxide (rGO) sheets through a simple, one-step, hydrothermal method without addition of other reducing agents. The α-Fe2O3/rGO hybrid was characterized by scanning electron micrographs, X-ray diffraction, X-ray photoelectron spectroscopy, and Raman spectroscopy. This α-Fe2O3/rGO hybrid has been successfully applied in the catalytic performance toward the reduction of H2O2. The nonenzymatic sensor demonstrates a linear relationship over a wide concentration range of 5.0–4495.0 μM (R = 0.9998), a low detection limit of 1.0 μM, and a high sensitivity of 126.9 μA cm−2 mM−1 to the detection of H2O2.