Electrochemical simultaneous determination of nitrate ions in water using modified glassy carbon electrode based on La1.7Sr0.3CuO4 and La0.6Sr0.4Co0.8Fe0.2O3 nanomaterials and black carbon sensors

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dc.authoridKuyumcu Savan, Ebru/0000-0002-8851-0907
dc.authorwosidKuyumcu Savan, Ebru/E-3430-2019
dc.contributor.authorMekersi, Mouna
dc.contributor.authorSavan, Ebru Kuyumcu
dc.contributor.authorFerkhi, Mosbah
dc.date.accessioned2024-08-04T20:55:02Z
dc.date.available2024-08-04T20:55:02Z
dc.date.issued2024
dc.departmentİnönü Üniversitesien_US
dc.description.abstractNanoparticle-based materials have played an important role in the development of new electrochemical sensors and received recently tremendous attention for the detection of toxic ions such as nitrate molecules (NO3- and NO2-). Here, we employ La1.7Sr0.3CuO4 (LSCu) and La0.6Sr0.4Co0.8Fe0.2O3 (LSCF) low-cost, highly sensitive nanoparticles modified with black carbon as sensors for the detection of nitrate ions. The modified nanooxides were synthesized by a simple citrate method then prepared with black carbon powder and nafion solution as a sensing matrix on a glassy carbon electrode for the determination of nitrates ions in water using cyclic voltammetry, differential pulse voltammetry, and electrochemical impedance spectroscopy as electrochemical techniques. X-ray diffraction (XRD) and scanning electron microscopy (SEM) were used for structural and morphological characterization. The calculated crystallite size d, using the Debye-Scherrer equation was found to be 325,193 nm for LSCu and 208,317 nm for LSCF by XRD technique. The grain sizes are, respectively, 47.80 nm and 65.05 nm which were extracted by SEM analysis. In this work, the modified sensors based on LSCu and LSCF demonstrate satisfactory response and sensitivities toward nitrate molecules compared with previous works. They characterized with very low detection limits of 0.0014 nM and 0.02 nM, high sensitivities of 58.8 and 57.3 mu A.mu M-1, respectively, and recorded a wide linear range from 1 M to 10(-12) M for LSCF and 4 M to 10(-13) M for LSCu. Both of the modified electrodes demonstrated excellent results in real river water sample with low detection limits of 3.1 nM for LSCu and 3.5 nM for LSCF and very good recoveries of 100.6% and 101.65%, respectively.en_US
dc.identifier.doi10.1007/s11581-024-05404-9
dc.identifier.endpage2374en_US
dc.identifier.issn0947-7047
dc.identifier.issn1862-0760
dc.identifier.issue4en_US
dc.identifier.scopus2-s2.0-85183876707en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage2357en_US
dc.identifier.urihttps://doi.org/10.1007/s11581-024-05404-9
dc.identifier.urihttps://hdl.handle.net/11616/101792
dc.identifier.volume30en_US
dc.identifier.wosWOS:001155703200001en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherSpringer Heidelbergen_US
dc.relation.ispartofIonicsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectNano-sized particlesen_US
dc.subjectSensorsen_US
dc.subjectNitrates determinationen_US
dc.subjectDifferential pulse voltammetryen_US
dc.subjectReal wateren_US
dc.titleElectrochemical simultaneous determination of nitrate ions in water using modified glassy carbon electrode based on La1.7Sr0.3CuO4 and La0.6Sr0.4Co0.8Fe0.2O3 nanomaterials and black carbon sensorsen_US
dc.typeArticleen_US

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