Fabrication of alizarin red S/multi-walled carbon nanotube nanocomposites and their application in hydrogen peroxide detection

Abstract

In this work, an easy and effective method to synthesize alizarin red S/multi-walled carbon nanotube (ARS/MWCNT) nanocomposites based on the p-p stacking non-covalent interactions between ARS and MWCNTs was introduced. The characters of ARS/MWCNT nanocomposites were investigated by Fourier transformation infrared spectroscopy, UV-Vis spectroscopy, X-ray photoelectron spectroscopy, scanning electron microscope, and electrochemical techniques. ARS tightly coating on MWCNTs surface makes the nanocomposites good dispersibility in water and excellent electrochemical activity. Because of the combination of the excellent electroactivity of ARS and the unique properties of MWCNTs, ARS/ MWCNT nanocomposites-modified glassy carbon electrode exhibits a good response to the reduction of hydrogen peroxide and takes on a promising prospect of the practical application in electrochemical sensors field.

Poly‐(Alizarin Red S)‐Modified Glassy Carbon Electrode for Simultaneous Electrochemical Determination of Levodopa, Homovanillic Acid and Ascorbic Acid

“…ARS also is useful for the electrochemical detection of different biological samples 19–21. It has been used as a redox homogeneous mediator in different electrochemical configurations 22–25 A few strategies based on chemical modification of carbon electrodes by ARS, are reported including gold nanoparticles/ARS) 19, carbon nanotube/ARS 21, 26 and electrochemically preanodized modification of GCE 27.…”

Development of a poly(alizarin red S)/ionic liquid film modified electrode for voltammetric determination of catechol

“…The mechanism of electrochemical oxidation of PARS on GCE is shown in Scheme 1. However, given its poor conductivity, ARS or PARS is used in combination with other nanomaterials, such as gold nanoparticles [20], graphene [21], multi-walled carbon nanotubes [22], and so on. Such combination process is complicated, thereby limiting the application of ARS or PARS.…”

Tunable and label-free virus enrichment for ultrasensitive virus detection using carbon nanotube arrays

“…In the future, we believe that the aligned CNTs used in our devices could be chemically functionalized with biomolecules (for example, biotin) (40) or other chemical groups (58)(59)(60)(61). This could potentially improve selectivity of our CNT-STEMs, especially when processing multivirus samples with an overlapped size distribution.…”