Thermoplastic Starch and Graphite Biocomposite Electrode for Electrochemical Catechol Sensor

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Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversidade Federal de São Carlos (UFSCar)-
Autor(es): dc.creatorde Freitas, Amanda de S. M.-
Autor(es): dc.creatorMaciel, Cristiane C.-
Autor(es): dc.creatorLemes, Ana Paula-
Autor(es): dc.creatorFerreira, Marystela-
Data de aceite: dc.date.accessioned2025-08-21T23:33:15Z-
Data de disponibilização: dc.date.available2025-08-21T23:33:15Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2022-09-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1149/2754-2734/ac936d-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/298948-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/298948-
Descrição: dc.descriptionThere is interest in obtaining alternative materials for application in electrochemical sensing. Thermoplastic starch (TPS) was used because it is a polymer with high availability and biodegradability, which can be incorporated into graphite (Gr) forming a conductive material. This work describes the characterization of the material produced by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), contact angle, X-ray diffraction (XRD) and Raman spectroscopy. The techniques used allowed to show a good interaction between graphite and TPS and confirmed the predicted conductive properties, showing the potential of application as a substrate, in the development of electrochemical sensors. Electrochemical characterization by electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV) was also carried out, which allowed defining the best proportion of graphite:TPS as the composite of 60:40 w/w. The technique of differential pulse voltammetry (DPV) was used to determine the catechol molecule over a range of 0.1 to 2.0 mmol l−1, showing a linear regression (R2) of 0.9996 and limit of detection (LOD) and limit of quantitation (LOQ) values equal to 1.85 × 10−6 mol l−1 and 6.18 × 10−7 mol l−1, respectively. The results showed good precision, selectivity, and stability, proving the application as an electrochemical sensor to detect catechol (CC) in contaminated water.-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionPolymers and Biopolymers Technology Laboratory - TecPBio Federal University of São Paulo (UNIFESP), SP-
Descrição: dc.descriptionPostgraduate Program in Materials Science and Technology - POSMAT São Paulo State University Júlio de Mesquita Filho (UNESP), SP-
Descrição: dc.descriptionCenter of Science and Technology for Sustainability - CCTS Federal University of São Carlos (UFSCar), SP-
Descrição: dc.descriptionPostgraduate Program in Materials Science and Technology - POSMAT São Paulo State University Júlio de Mesquita Filho (UNESP), SP-
Idioma: dc.languageen-
Relação: dc.relationECS Advances-
???dc.source???: dc.sourceScopus-
Título: dc.titleThermoplastic Starch and Graphite Biocomposite Electrode for Electrochemical Catechol Sensor-
Tipo de arquivo: dc.typelivro digital-
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