2026-10-19T01:39:41Zhttps://ebyu-rdlopen.rawdatalibrary.net/oai/requestoai:ebyu-rdlopen.rawdatalibrary.net:ebyu/143172026-10-18T20:41:13Zopenairedrivercom_ebyu_10000col_ebyu_10001Structural characterization of chitosan-smectite nanocomposite and its application in the development of a novel potentiometric monohydrogen phosphate-selective sensorTopcu, CihanCaglar, BulentOnder, AhmetColdur, FatihCaglar, SemaGuner, Eda KelesCubuk, OsmanTabak, AhmetChitosanClayCompositeMonohydrogen phosphatePotentiometric sensorChitinComposite materialsPotentiometers (electric measuring instruments)Potentiometric sensorsCation-exchange mechanismElectroactive componentsMembrane compositionMorphological analysisProtonated chitosanSelective determinationStructural characterizationSurface area measurementChitosan-smectite biocomposite was prepared by intercalation of protonated chitosan molecules into the interlayer space of smectite in monolayer arrangement through cation exchange mechanism and the obtained biocomposite was successfully used as an electroactive component in the structure of a PVC membrane potentiometric sensor for the direct and highly selective determination of monohydrogen phosphate ions. The comparative elemental, structural, thermal and morphological analysis of starting-smectite, neat chitosan and chitosan-smectite were investigated by utilizing EDX, XRD, ATR-FTIR, TG/DTG/DTA, SEM and surface area measurement techniques. The optimum membrane composition, detection limit, response time, pH working range and repeatability of the proposed electrode were determined. © 2017 Elsevier LtdElsevier Ltd2018Articlehttps://rdlopen.rawdatalibrary.net/r/ebyu/14317https://doi.org/10.1016/j.materresbull.2017.09.0680025-5408enMaterials Research Bulletininfo:eu-repo/semantics/openAccessinfo:eu-repo/semantics/articlehttps://ebyu-rdlopen.rawdatalibrary.net/tr/items/ebyu/14317