Title

Mn-Fe3O4 nanoparticles anchored on the urushiol functionalized 3D-graphene for the electrochemical detection of 4-nitrophenol

Publication Name

Journal of Hazardous Materials

Abstract

Preparation of highly active and cost-effective electrode materials is of great interest in electrochemical detection. In this study, a simple urushiol-templated solvothermal method combined with calcination was proposed to fabricate N-doped three-dimensional graphene (3D-G) with Mn-doped Fe O nanoparticles loaded on the surface (Mn-Fe O /3D-G). Because of the large active surface area, porous channel and high loading ratio of Mn-Fe O nanoparticles, as-prepared Mn-Fe O /3D-G sensor showed high activity on the determination of 4-nitrophenol (4-NP), which are much improved from the control un-modified samples. The wide linear concentration range (5–100 μM), low detection limit (19 nM) and satisfactory recovery of 4-NP in various water samples (98.38–100.41%) indicated that the Mn-Fe O /3D-G electrode can be potentially used for real-world applications. This study gives a simple but meaningful strategy for constructing transition metal oxide/graphene composite materials with high electrocatalytic activity. 3 4 3 4 3 4 3 4 3 4

Open Access Status

This publication is not available as open access

Volume

409

Article Number

124926

Funding Number

CE140100012

Funding Sponsor

Australian Research Council

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Link to publisher version (DOI)

http://dx.doi.org/10.1016/j.jhazmat.2020.124926