Issue 12, 2016

A novel electrochemical sensor based on a glassy carbon electrode modified with Cu–MWCNT nanocomposites for determination of hydroquinone

Abstract

A new electrochemical sensor based on copper nanoparticles (Cu NPs) and multi-walled carbon nanotubes (MWCNTs) was fabricated for the determination of hydroquinone (HQ). A type of spotty-like Cu NP located on MWCNT (Cu–MWCNT) nanocomposites was synthesized with a microwave-assisted method. The morphology and phase of Cu–MWCNTs nanocomposite were characterized using scanning electron microscopy (SEM) and X-ray powder diffraction (XRD). Cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) were performed to characterize the electrochemical performance and surface characteristics of the as-prepared sensor. The composite electrode exhibited excellent activity with increased electrochemical signals towards the redox of HQ, owing to the synergistic effect of Cu NPs and MWCNTs. Under the optimized conditions, the linear response range was from 0.10 to 100 μM for HQ. The detection limit for HQ was as low as 0.04 μM. Moreover, the modified electrode presented a good reproducibility and excellent anti-interference performance. The performance of the developed sensor for the detection of HQ was evaluated in practical samples with satisfying results.

Graphical abstract: A novel electrochemical sensor based on a glassy carbon electrode modified with Cu–MWCNT nanocomposites for determination of hydroquinone

Article information

Article type
Paper
Submitted
14 Dec 2015
Accepted
24 Feb 2016
First published
25 Feb 2016

Anal. Methods, 2016,8, 2568-2575

A novel electrochemical sensor based on a glassy carbon electrode modified with Cu–MWCNT nanocomposites for determination of hydroquinone

Y. Yao, Y. Liu and Z. Yang, Anal. Methods, 2016, 8, 2568 DOI: 10.1039/C5AY03271G

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements