A sensitive, selective and rapid determination of lead(II) ions in real-life samples using an electrochemically reduced graphene oxide-graphite reinforced carbon electrode

Kunashegaran, Hamsawahini; Sathishkumar, Palanivel; Ahamad, Rahmalan; Yusoff, Abdull Rahim Mohd

doi:10.1016/j.talanta.2015.07.049

Cited by 34 publications

(7 citation statements)

References 43 publications

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“…ERGO has been extensively explored as a candidate material for electrodes and their modification [30]. Hamsawahini et al [31] reported that ERGO-modified electrodes exhibited a good sensitivity of Pb (Ⅱ) ions. Sun et al [32] fabricated an electrochemical DNA biosensor for the detection of the ssDNA sequence with an ERGO electrode.…”

Section: Introductionmentioning

confidence: 99%

Effect of morphology and defect density on electron transfer of electrochemically reduced graphene oxide

Zhang

Wang

2016

Applied Surface Science

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Electrochemically reduced graphene oxide (ERGO) is widely used to construct electrochemical sensors. Understanding the electron transfer behavior of ERGO is essential for its electrode material applications. In this paper, different morphologies of ERGO were prepared via two different methods. Compared to ERGO/GCEs prepared by electrochemical reduction of pre-deposited GO, more exposed edge planes of ERGO are observed on the surface of ERGO-GCE that was constructed by electrophoretic deposition of GO. The defect densities of ERGO were controlled by tuning the mass or concentration of GO. The electron transfer kinetics (k 0 ) of GCE with different ERGOs was comparatively investigated. Owing to increased surface areas and decreased defect density, the k 0 values of ERGO/GCE initially increase and then decrease with incrementing of GO mass. When the morphology and surface real areas of ERGO-GCE are the same, an increased defect density induces an accelerated electron transfer rate. k 0 valuesof ERGO-GCEs are about 1 order of magnitude higher than those of ERGO/GCEs due to the difference in the amount of edge planes. This work demonstrates that both defect densities and edge planes of ERGO play crucial roles in electron transfer kinetics.

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Section: Introductionmentioning

confidence: 99%

Effect of morphology and defect density on electron transfer of electrochemically reduced graphene oxide

Zhang

Wang

2016

Applied Surface Science

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“…The identified heavy metals (Pb, Cr, and Cd) hold high potential to harm human health and the environment ( Johnson et al, 2018 ; Meena et al, 2018 ; Poonkuzhali et al, 2014 ). Toxicological effects of Pb on humans are well recognized as carcinogenic ( Elias et al, 2021 ; Hamsawahini et al, 2015 ). Additionally, this heavy metal has a bioaccumulation potential, which can cause kidney and neurological damage in humans ( López-García et al, 2013 ; Hamsawahini et al, 2015 ).…”

Section: Resultsmentioning

confidence: 99%

Adverse environmental effects of disposable face masks due to the excess usage

Sathishkumar

Selahuddeen

et al. 2022

Environmental Pollution

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“…Hamsawahini Kunashegaran et al [75] discussed both cyclic voltammetry and square wave voltammetry methods for Pb 2+ quantification. This study used graphite reinforced carbon (GRC) as a substrate material and the electrode was modified with graphene oxide for electrochemical reduction to selectively detect Pb 2+ ions.…”

Section: Cyclic Voltammetrymentioning

confidence: 99%

Electrochemical Devices to Monitor Ionic Analytes for Healthcare and Industrial Applications

et al. 2022

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Recent advances in electrochemical devices have sparked exciting opportunities in the healthcare, environment, and food industries. These devices can be fabricated at low costs and are capable of multiplex monitoring. This overcomes challenges presnted in traditional sensors for biomolecules and provides us a unique gateway toward comprehensive analyses. The advantages of electrochemical sensors are derived from their direct integration with electronics and their high selectivity along with sensitivity to sense a wide range of ionic analytes at an economical cost. This review paper aims to summarize recent innovations of a wide variety of electrochemical sensors for ionic analytes for health care and industrial applications. Many of these ionic analytes are important biomarkers to target for new diagnostic tools for medicine, food quality monitoring, and pollution detection. In this paper, we will examine various fabrication techniques, sensing mechanisms, and will also discuss various future opportunities in this research direction.

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A sensitive, selective and rapid determination of lead(II) ions in real-life samples using an electrochemically reduced graphene oxide-graphite reinforced carbon electrode

Cited by 34 publications

References 43 publications

Effect of morphology and defect density on electron transfer of electrochemically reduced graphene oxide

Effect of morphology and defect density on electron transfer of electrochemically reduced graphene oxide

Adverse environmental effects of disposable face masks due to the excess usage

Electrochemical Devices to Monitor Ionic Analytes for Healthcare and Industrial Applications

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