» Articles » PMID: 31595363

A Hybrid Composed of MoS2, Reduced Graphene Oxide and Gold Nanoparticles for Voltammetric Determination of Hydroquinone, Catechol, and Resorcinol

Overview
Journal Mikrochim Acta
Specialties Biotechnology
Chemistry
Date 2019 Oct 10
PMID 31595363
Citations 1
Authors
Affiliations
Soon will be listed here.
Abstract

A ternary hybrid composed of molybdenum disulfide (MoS), reduced graphene oxide (rGO) and gold nanoparticles (AuNPs@MoS-rGO) was prepared and used for voltammetric detection of hydroquinone (HQ), catechol (CC) or resorcinol (RC). The composition and structure of the hybrid were characterized in detail. The electrochemical behaviors of a glassy carbon electrode (GCE) modified with the hybrid towards the oxidation of HQ, CC, and RC were investigated using cyclic voltammetry (CV) and differential pulse voltammetry (DPV). The results revealed 3D MoS is active for the catalytic oxidation of these isomers. Additional integration with rGO and AuNPs further improves catalysis due to their synergistic interaction. The enhanced catalysis leads to oxidation of HQ, CC and RC at 0.074 V, 0.178 V, and 0.527 V (vs. Ag/AgCl; by CV) with reduced overpotential (20-100 mV) and 8-fold or 3-fold increased peak current compared to those obtained on MoS/GCE, or MoS-rGO/GCE, respectively. Selective detection of one isomer in the presence of the other two was realized by DPV. The linear ranges are 0.1-950 μM, 3-560 μM, and 40-960 μM for HQ, CC, and RC, and the detection limits are 0.04 μM, 0.95 μM, and 14.6 μM, respectively. The sensor also shows good selectivity and displays satisfactory recovery for real sample analysis. Graphical abstract Schematic illustration of the preparation of AuNPs@MoS-rGO hybrid by hydrothermal growth of MoS-rGO and subsequent electrodeposition of gold nanoparticles (AuNPs), and its application for selective detection of hydroquinone, catechol and resorcinol by voltammetry.

Citing Articles

One-step synthesis of Ni(OH)/MWCNT nanocomposites for constructing a nonenzymatic hydroquinone/O fuel cell.

Wu Y, Yang X, Liu S, Xing Y, Peng J, Peng Y RSC Adv. 2022; 10(65):39447-39454.

PMID: 35515406 PMC: 9057427. DOI: 10.1039/d0ra00622j.

References
1.
Zhang X, Lai Z, Tan C, Zhang H . Solution-Processed Two-Dimensional MoS2 Nanosheets: Preparation, Hybridization, and Applications. Angew Chem Int Ed Engl. 2016; 55(31):8816-38. DOI: 10.1002/anie.201509933. View

2.
Moore R, Banks C, Compton R . Basal plane pyrolytic graphite modified electrodes: comparison of carbon nanotubes and graphite powder as electrocatalysts. Anal Chem. 2004; 76(10):2677-82. DOI: 10.1021/ac040017q. View

3.
Chekin F, Teodorescu F, Coffinier Y, Pan G, Barras A, Boukherroub R . MoS2/reduced graphene oxide as active hybrid material for the electrochemical detection of folic acid in human serum. Biosens Bioelectron. 2016; 85:807-813. DOI: 10.1016/j.bios.2016.05.095. View

4.
An J, Jang J . A highly sensitive FET-type aptasensor using flower-like MoS nanospheres for real-time detection of arsenic(iii). Nanoscale. 2017; 9(22):7483-7492. DOI: 10.1039/c7nr01661a. View

5.
Marcano D, Kosynkin D, Berlin J, Sinitskii A, Sun Z, Slesarev A . Improved synthesis of graphene oxide. ACS Nano. 2010; 4(8):4806-14. DOI: 10.1021/nn1006368. View