One pot electrochemical synthesis of poly(melamine) entrapped gold nanoparticles composite for sensitive and low level detection of catechol

Palanisamy, S, Ramaraj, SK, Chen, S-M, Velusamy, V, Chiu, T-W, Yang, CK, Chen, T-W and Selvam, S (2017) One pot electrochemical synthesis of poly(melamine) entrapped gold nanoparticles composite for sensitive and low level detection of catechol. Journal of Colloid and Interface Science, 496. pp. 364-370. ISSN 0021-9797

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Official URL: https://doi.org/10.1016/j.jcis.2016.12.062

Abstract

A simple and cost effective synthesis of nanomaterials with advanced physical and chemical properties have received much attention to the researchers, and is of interest to the researchers from different disciplines. In the present work, we report a simple and one pot electrochemical synthesis of poly(melamine) entrapped gold nanoparticles (PM-AuNPs) composite. The PM-AuNPs composite was prepared by a single step electrochemical method, wherein the AuNPs and PM were simultaneously fabricated on the electrode surface. The as-prepared materials were characterized by various physicochemical methods. The PM-AuNPs composite modified electrode was used as an electrocatalyst for oxidation of catechol (CC) due to its well-defined redox behavior and enhanced electro-oxidation ability towards CC than other modified electrodes. Under optimized conditions, the differential pulse voltammetry (DPV) was used for the determination of CC. The DPV response of CC was linear over the concentration ranging from 0.5 to 175.5 μM with a detection limit of 0.011 μM. The PM-AuNPs composite modified electrode exhibits the high selectivity in the presence of range of potentially interfering compounds including dihydroxybenzene isomers. The sensor shows excellent practicality in CC containing water samples, which reveals the potential ability of PM-AuNPs composite modified electrode towards the determination of CC in real samples.

Item Type:	Article (Article)
Peer-reviewed:	Yes
Date Deposited:	01 Dec 2017 12:02
Publisher:	Elsevier
Additional Information:	This is an Author Accepted Manuscript of a paper accepted for publication in Journal of Colloid and Interface Science, published by and copyright Elsevier.
Divisions:	Faculties > Science and Engineering
Subject terms:	Science & Technology, Physical Sciences, Chemistry, Physical, Chemistry, Poly(melamine), Gold nanoparticles, Electrochemical preparation, Catechol, Differential pulse voltammetry, GLASSY-CARBON ELECTRODE, REDUCED GRAPHENE OXIDE, HYDROQUINONE, FILM, RESORCINOL, SAMPLES, NANOCOMPOSITE, NANOTUBES, PHENOL, Gold, Catechols, Triazines, Polymers, Biosensing Techniques, Electrodes, Oxidation-Reduction, Catalysis, Nanocomposites, Metal Nanoparticles, Electrochemical Techniques, Limit of Detection, Catechol, Differential pulse voltammetry, Electrochemical preparation, Gold nanoparticles, Poly(melamine), Biosensing Techniques, Catalysis, Catechols, Electrochemical Techniques, Electrodes, Gold, Limit of Detection, Metal Nanoparticles, Nanocomposites, Oxidation-Reduction, Polymers, Triazines, 03 Chemical Sciences, 09 Engineering, 02 Physical Sciences, Chemical Physics
URI:	https://e-space.mmu.ac.uk/id/eprint/619512
DOI:	https://doi.org/10.1016/j.jcis.2016.12.062
ISSN	0021-9797
e-ISSN	1095-7103

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