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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

In this study, a sensitive and cost-effective electrochemically reduced graphene oxide (ErGO) on graphite reinforced carbon (GRC) was developed for the detection of lead (Pb(II)) ions present in the real-life samples. A film of graphene oxide (GO) was drop-casted on GRC and their electrochemical pro...

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Main Authors: Hamsawahini, Kunashegaran, Sathishkumar, Palanivel, Ahamad, Rahmalan, Mohd. Yusoff, Abdull Rahim
Format: Article
Published: Elsevier Science 2015
Subjects:
Q Science (General)
Online Access:http://eprints.utm.my/id/eprint/57660/
http://dx.doi.org/10.1016/j.talanta.2015.07.049
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spelling my.utm.576602017-02-01T01:22:36Z http://eprints.utm.my/id/eprint/57660/ A sensitive, selective and rapid determination of lead(II) ions in real-life samples using an electrochemically reduced graphene oxide-graphite reinforced carbon electrode Hamsawahini, Kunashegaran Sathishkumar, Palanivel Ahamad, Rahmalan Mohd. Yusoff, Abdull Rahim Q Science (General) In this study, a sensitive and cost-effective electrochemically reduced graphene oxide (ErGO) on graphite reinforced carbon (GRC) was developed for the detection of lead (Pb(II)) ions present in the real-life samples. A film of graphene oxide (GO) was drop-casted on GRC and their electrochemical properties were investigated using cyclic voltammetry (CV), amperometry and square wave voltammetry (SWV). Factors influencing the detection of Pb(II) ions, such as grades of CRC, constant applied cathodic potential (CACP), concentration of hydrochloric acid and drop-casting drying time were optimised. GO is irreversibly reduced in the range of -0.7 V to -1.6 V vs Ag/AgCl (3 M) in acidic condition. The results showed that the reduction behaviour of CO contributed to the high sensitivity of Pb(II) ions detection even at nanomolar level. The ErGO-CRC showed the detection limit of 0.5 nM and linear range of 315 nM in HCl (1 M). The developed electrode has potential to be a good candidate for the determination of Pb(II) ions in different aqueous system. The proposed method gives a good recovery rate of Pb(II) ions in real-life water samples such as tap water and river water. Elsevier Science 2015 Article PeerReviewed Hamsawahini, Kunashegaran and Sathishkumar, Palanivel and Ahamad, Rahmalan and Mohd. Yusoff, Abdull Rahim (2015) A sensitive, selective and rapid determination of lead(II) ions in real-life samples using an electrochemically reduced graphene oxide-graphite reinforced carbon electrode. Talanta, 144 . pp. 969-976. ISSN 3928-764 http://dx.doi.org/10.1016/j.talanta.2015.07.049 DOI:10.1016/j.talanta.2015.07.049
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic Q Science (General)
spellingShingle Q Science (General)
Hamsawahini, Kunashegaran
Sathishkumar, Palanivel
Ahamad, Rahmalan
Mohd. Yusoff, Abdull Rahim
A sensitive, selective and rapid determination of lead(II) ions in real-life samples using an electrochemically reduced graphene oxide-graphite reinforced carbon electrode
description In this study, a sensitive and cost-effective electrochemically reduced graphene oxide (ErGO) on graphite reinforced carbon (GRC) was developed for the detection of lead (Pb(II)) ions present in the real-life samples. A film of graphene oxide (GO) was drop-casted on GRC and their electrochemical properties were investigated using cyclic voltammetry (CV), amperometry and square wave voltammetry (SWV). Factors influencing the detection of Pb(II) ions, such as grades of CRC, constant applied cathodic potential (CACP), concentration of hydrochloric acid and drop-casting drying time were optimised. GO is irreversibly reduced in the range of -0.7 V to -1.6 V vs Ag/AgCl (3 M) in acidic condition. The results showed that the reduction behaviour of CO contributed to the high sensitivity of Pb(II) ions detection even at nanomolar level. The ErGO-CRC showed the detection limit of 0.5 nM and linear range of 315 nM in HCl (1 M). The developed electrode has potential to be a good candidate for the determination of Pb(II) ions in different aqueous system. The proposed method gives a good recovery rate of Pb(II) ions in real-life water samples such as tap water and river water.
format Article
author Hamsawahini, Kunashegaran
Sathishkumar, Palanivel
Ahamad, Rahmalan
Mohd. Yusoff, Abdull Rahim
author_facet Hamsawahini, Kunashegaran
Sathishkumar, Palanivel
Ahamad, Rahmalan
Mohd. Yusoff, Abdull Rahim
author_sort Hamsawahini, Kunashegaran
title A sensitive, selective and rapid determination of lead(II) ions in real-life samples using an electrochemically reduced graphene oxide-graphite reinforced carbon electrode
title_short A sensitive, selective and rapid determination of lead(II) ions in real-life samples using an electrochemically reduced graphene oxide-graphite reinforced carbon electrode
title_full A sensitive, selective and rapid determination of lead(II) ions in real-life samples using an electrochemically reduced graphene oxide-graphite reinforced carbon electrode
title_fullStr A sensitive, selective and rapid determination of lead(II) ions in real-life samples using an electrochemically reduced graphene oxide-graphite reinforced carbon electrode
title_full_unstemmed A sensitive, selective and rapid determination of lead(II) ions in real-life samples using an electrochemically reduced graphene oxide-graphite reinforced carbon electrode
title_sort sensitive, selective and rapid determination of lead(ii) ions in real-life samples using an electrochemically reduced graphene oxide-graphite reinforced carbon electrode
publisher Elsevier Science
publishDate 2015
url http://eprints.utm.my/id/eprint/57660/
http://dx.doi.org/10.1016/j.talanta.2015.07.049
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score 13.211869

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