Flow injection analysis of sulphide based on its photoelectrocatalytic oxidation at poly-methylene blue modified glassy carbon electrode

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dc.contributor.authorDilgin Y.
dc.contributor.authorCanarslan S.
dc.contributor.authorAyyildiz O.
dc.contributor.authorErtek B.
dc.contributor.authorNişli G.
dc.date.accessioned2019-10-26T21:52:32Z
dc.date.available2019-10-26T21:52:32Z
dc.date.issued2012
dc.departmentEge Üniversitesien_US
dc.description.abstractA new approach for photoelectrocatalytic determination of sulphide in a flow injection analysis (FIA) system was studied using a poly-methylene blue modified glassy carbon electrode (poly-MB/GCE). Results from electrochemical measurements have revealed that poly-MB/GCE is capable of signalling electrocatalytic and photoelectrocatalytic activity towards sulphide oxidation. When the surface of poly-MB/GCE was irradiated with a light source (250 W Halogen lamp), the electrocatalytic current increased substantially. A homemade flow electrochemical cell with a suitable transparent window for the irradiation of the electrode surface was used to perform the photoelectrocatalytic determination of sulphide in FIA system. The currents obtained from the photoamperometric measurements in the FIA system at optimum conditions (carrier solution: pH 9.0 Britton Robinson buffer solution containing 0.1 M KCl; flow rate: 1.3 mL min -1; transmission tubing length: 10 cm; injection volume: 100 µL; and constant applied potential: +150 mV vs. Ag/AgCl/KCl sat) were linearly correlated with the sulphide concentration. The calibration curves were obtained for sulphide concentrations in a range of 0.5-500 µM. The detection limits were found to be 0.27 and 0.15 µM for amperometric and photoamperometric methods, respectively. The proposed method was successfully applied to different wastewaters such as municipal sewage or tannery wastewater. Finally, results from the sulphide measurements by poly-MB/GCE were in good agreement with those attained using spectrophotometric method. © 2012 Published by Elsevier Ltd. All rights reserved.en_US
dc.identifier.doi10.1016/j.electacta.2012.01.072
dc.identifier.endpage179en_US
dc.identifier.issn0013-4686
dc.identifier.issn0013-4686en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage173en_US
dc.identifier.urihttps://doi.org/10.1016/j.electacta.2012.01.072
dc.identifier.urihttps://hdl.handle.net/11454/18849
dc.identifier.volume66en_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.relation.ispartofElectrochimica Actaen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectElectropolymerizationen_US
dc.subjectFlow injection analysisen_US
dc.subjectMethylene blueen_US
dc.subjectPhotoelectrocatalytic oxidationen_US
dc.subjectSulphideen_US
dc.titleFlow injection analysis of sulphide based on its photoelectrocatalytic oxidation at poly-methylene blue modified glassy carbon electrodeen_US
dc.typeArticleen_US

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