Simultaneous Electrochemical Detection of Paraquat and Carbofuran Using a Biodegradable Flexible Electrode, Enhanced with Carbon Nitride Dots and Poly(allylamine hydrochloride) via Layer-by-Layer Technique

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Federal de São Carlos (UFSCar)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversidade Estadual de Campinas (UNICAMP)-
Autor(es): dc.creatorde Freitas, Amanda de S. M.-
Autor(es): dc.creatorFré, Lucas V. B. V.-
Autor(es): dc.creatorRodrigues, Jéssica S.-
Autor(es): dc.creatorAmaro, Stefanny F.-
Autor(es): dc.creatorde Barros, Anerise-
Autor(es): dc.creatorNascimento, Maria E. S.-
Autor(es): dc.creatorFerreira, Marystela-
Data de aceite: dc.date.accessioned2025-08-21T19:18:52Z-
Data de disponibilização: dc.date.available2025-08-21T19:18:52Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2023-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1007/s11244-024-02014-7-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/301637-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/301637-
Descrição: dc.descriptionThe developing of sensor devices for portable and selective detection remains an emergent technology needed for monitoring water contamination. In this work, we developed a flexible and biodegradable sensor based on the polymer poly(butylene adipate-co-terephthalate) (PBAT) mixed with graphite (g), creating (g-PBAT) for the simultaneous detection of paraquat (PQ) and carbofuran (CBF) pesticides. The g-PBAT was used as an electrode support and was modified with poly(allylamine hydrochloride) and carbon nitride dotes by Layer-by-Layer technique. The sensor’s performance was evaluated through electrochemical methods using cyclic voltammetry, electrochemical impedance spectroscopy, and differential pulse voltammetry. The results demonstrated good reproducibility and repeatability with RSD of 14% and 8.8%, respectively. The stability in terms of current signal peak increased by only 8.5% compared to the initial cycle. The limit of detection (LoD) and limit of quantification (LoQ) were 0.63 µM and 2.10 µM for PQ, respectively, with a sensitivity of 3.69E-5 ± 5.94E-7 A cm−2 M−1, while the CBF had a LoD and LoQ of 7.14 µM and 23.8 µM, respectively, with a sensitivity of 2.51E-7 ± 2.09E-8 A cm−2 M−1. Additionally, the recovery methodology for the real sample showed ranges from 89.3% to 105.0% for PQ, and 92.1% to 105.9% for CBF, indicating that the sensor exhibits good sensitivity and stable RSD, ranging from 4% to 7.5%.-
Descrição: dc.descriptionScience and Technology Center for Sustainability (CCTS) Federal University of São Carlos (UFSCar), SP-
Descrição: dc.descriptionInstitute of Science and Technology (ICT) São Paulo State University (UNESP), SP-
Descrição: dc.descriptionInstitute of Chemistry (IQ) State University of Campinas, (UNICAMP)SP-
Descrição: dc.descriptionInstitute of Science and Technology (ICT) São Paulo State University (UNESP), SP-
Idioma: dc.languageen-
Relação: dc.relationTopics in Catalysis-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectBiodegradable sensor-
Palavras-chave: dc.subjectCarbon nitride dots-
Palavras-chave: dc.subjectLayer-by-layer-
Palavras-chave: dc.subjectParaquat and carbofuran-
Título: dc.titleSimultaneous Electrochemical Detection of Paraquat and Carbofuran Using a Biodegradable Flexible Electrode, Enhanced with Carbon Nitride Dots and Poly(allylamine hydrochloride) via Layer-by-Layer Technique-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

Não existem arquivos associados a este item.