A promising electrochemical sensor based on gold deposited-reduced graphene oxide sheets for the detection of Cd(II) and Pb(II)

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dc.authoridUysal, Reyhan Selin/0000-0003-0028-7286
dc.authorwosidUysal, Reyhan Selin/AFB-0880-2022
dc.contributor.authorUysal, Reyhan Selin
dc.date.accessioned2024-07-18T20:42:20Z
dc.date.available2024-07-18T20:42:20Z
dc.date.issued2024
dc.departmentİstanbul Bilgi Üniversitesien_US
dc.description.abstractThis study presents electrochemical-based detection of heavy metal ions in mineral water samples. The aim of this research was to design a low-cost and highly sensitive disposable sensor to quantify Cd(II) and Pb(II). To this end, we have modified a pencil graphite electrode coated with graphene oxide (GO), electrochemically reduced graphene oxide and deposited metallic Au particles using square wave anodic stripping voltammetry. The findings revealed that the combined effect of GO and activation of the surface with auric acid improved electrical conductivity, thus facilitating deposition of Cd(II) and Pb(II) onto the electrode's surface. Under optimal conditions, a linear correlation was observed between current values and the concentrations of Cd(II) and Pb(II) within the ranges of 0.6-1.6 mu M and 0.4-1.6 mu M, where the limit of detection values were obtained as 0.36 mu M and 0.24 mu M for Cd(II) and Pb(II), respectively. According to the experimental results, the developed electrode can achieve a considerably high recovery rates for detection of Cd(II) (98.5%) and Pb(II) (93.5%) in gaseous natural mineral water samples.en_US
dc.description.sponsorshipIstanbul Gedik University BAP Commission [GDK201804-08]en_US
dc.description.sponsorshipThis research was supported by the Project numbered GDK201804-08 of Istanbul Gedik University BAP Commission. I am grateful to Prof. Haslet Eksi-Kocak for assisting me with the electrochemical modification analysis. I would also like to thank Prof. Mustafa Kumral for performing the ICP-MS analysis at Istanbul Technical University.en_US
dc.identifier.doi10.1007/s11696-024-03330-8
dc.identifier.issn0366-6352
dc.identifier.issn2585-7290
dc.identifier.scopus2-s2.0-85185110375en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.urihttps://doi.org/10.1007/s11696-024-03330-8
dc.identifier.urihttps://hdl.handle.net/11411/7244
dc.identifier.wosWOS:001162151100003en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherSpringer Int Publ Agen_US
dc.relation.ispartofChemical Papersen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectCarbonated Mineral Wateren_US
dc.subjectDisposable Sensoren_US
dc.subjectHeavy Metalsen_US
dc.subjectPencil Graphite Electrodeen_US
dc.subjectSquare Wave Anodic Stripping Voltammetryen_US
dc.subjectHeavy-Metal Ionsen_US
dc.subjectWateren_US
dc.subjectGraphiteen_US
dc.titleA promising electrochemical sensor based on gold deposited-reduced graphene oxide sheets for the detection of Cd(II) and Pb(II)
dc.typeArticle

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