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

Yanning Su; Xuelin Zheng; Hongyang Cheng; Minhui Rao; Kaidong Chen; Jianrong Xia; Liangxu Lin; Hu Zhu

doi:10.1016/j.jhazmat.2020.124926

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

J Hazard Mater. 2021 May 5:409:124926. doi: 10.1016/j.jhazmat.2020.124926. Epub 2020 Dec 30.

Authors

Yanning Su¹, Xuelin Zheng², Hongyang Cheng¹, Minhui Rao¹, Kaidong Chen¹, Jianrong Xia³, Liangxu Lin⁴, Hu Zhu⁵

Affiliations

¹ Fujian Key Laboratory of Polymer Materials, Fujian Provincial University Engineering Research Center of Industrial Biocatalysis, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, China.
² Fujian Key Laboratory of Polymer Materials, Fujian Provincial University Engineering Research Center of Industrial Biocatalysis, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, China. Electronic address: parrowxg@fjnu.edu.cn.
³ Fujian Engineering and Research Center of New Chinese lacquer Materials, Minjiang University, Fuzhou 350108, China.
⁴ ARC Centre of Excellence for Electromaterials Science, Intelligent Polymer Research Institute, Australia Institute for Innovative Materials (AIIM), Innovation Campus, University of Wollongong, Squires Way, North Wollongong 2519, Australia; Institute of Advanced Materials and Nanotechnology, The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China. Electronic address: liangxu@uow.edu.au.
⁵ Fujian Key Laboratory of Polymer Materials, Fujian Provincial University Engineering Research Center of Industrial Biocatalysis, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, China. Electronic address: zhuhu@fjnu.edu.cn.

PMID: 33461095
DOI: 10.1016/j.jhazmat.2020.124926

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 Fe₃O₄ nanoparticles loaded on the surface (Mn-Fe₃O₄/3D-G). Because of the large active surface area, porous channel and high loading ratio of Mn-Fe₃O₄ nanoparticles, as-prepared Mn-Fe₃O₄/3D-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-Fe₃O₄/3D-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.

Keywords: 4-nitrophenol; Electrochemical detection; Nanoparticles; Three-dimensional graphene; Urushiol.

Publication types

Research Support, Non-U.S. Gov't