High sensitive phosphorene and molecular imprinted polymers electrochemical sensor to determine benzene in oilfield-produced water

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Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorde Souza, João Carlos-
Autor(es): dc.creatorSilva, João Pedro-
Autor(es): dc.creatorZanoni, Maria Valnice Boldrin-
Autor(es): dc.creatorde Andrade, Adalgisa Rodrigues-
Data de aceite: dc.date.accessioned2025-08-21T16:24:19Z-
Data de disponibilização: dc.date.available2025-08-21T16:24:19Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2024-01-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.jece.2023.111703-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/304494-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/304494-
Descrição: dc.descriptionA new electrochemical sensor based on a carbon screen-printed electrode (CSPE) modified with phosphorene (BP) and PEDOT:PSS (BP-PEDOT:PSS) and molecularly imprinted polymers (MIPs) composed of poly(o-phenylenediamine) has been developed and applied to determine low benzene concentrations in oilfield-produced water (OPW). Morphological and electrochemical characterization of the sensor confirmed that the CSPE surface was modified with BP-PEDOT:PSS and MIPs. CSPE modification with BP-PEDOT:PSS increased the electrochemical current by 24.8%. Under optimized conditions, the sensor presented analytical curves with two linear ranges from 4.0 × 10−8 to 1.0 × 10−7 mol L−1 and from 2.0 × 10−7 to 1.0 × 10−6 mol L−1. The limit of detection, limit of quantification, and sensitivity were 7.4 × 10−9 mol L−1, 2.3 × 10−8 mol L−1, and 36.4 A L mol−1 (n = 3), respectively. The sensor showed good interday and intraday repeatability, with RSD values of 3.4% and 4.9%, respectively. Its stability was excellent, preserving 90.7% of its initial current after storage at room temperature and in contact with the ambient atmosphere for 15 days. The sensor also displayed excellent selectivity for the benzene molecule in the presence of interferents (o-xylene, m-xylene, phenol, and toluene). The proposed method was validated by comparison using the technique of gas chromatography coupled to flame injection detection (GC-FID) and successfully applied to determine benzene in an OPW sample.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionUniversity of São Paulo (USP) Faculty of Philosophy Sciences and Letters at Ribeirão Preto (FFCLRP) Department of Chemistry, Avenida Bandeirantes, 3900, São Paulo State-
Descrição: dc.descriptionSão Paulo State University (UNESP) Institute of Chemistry Department of Analytical Physical-Chemical and Inorganic Chemistry, Rua Prof. Francisco Degni, 55, São Paulo State-
Descrição: dc.descriptionSão Paulo State University (UNESP) Institute of Chemistry National Institute of Alternative Technologies for Detection Toxicological Evaluation and Removal of Micropollutants and Radioactive Substances (INCT-DATREM), Rua Prof. Francisco Degni, 55, São Paulo State-
Descrição: dc.descriptionSão Paulo State University (UNESP) Institute of Chemistry Department of Analytical Physical-Chemical and Inorganic Chemistry, Rua Prof. Francisco Degni, 55, São Paulo State-
Descrição: dc.descriptionSão Paulo State University (UNESP) Institute of Chemistry National Institute of Alternative Technologies for Detection Toxicological Evaluation and Removal of Micropollutants and Radioactive Substances (INCT-DATREM), Rua Prof. Francisco Degni, 55, São Paulo State-
Descrição: dc.descriptionFAPESP: 2021/01134–7-
Descrição: dc.descriptionFAPESP: 2021/12866–9-
Descrição: dc.descriptionCNPq: 465571/2014–0-
Idioma: dc.languageen-
Relação: dc.relationJournal of Environmental Chemical Engineering-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectBenzene-
Palavras-chave: dc.subjectElectrochemical sensor-
Palavras-chave: dc.subjectMolecularly imprinted polymer-
Palavras-chave: dc.subjectOil-
Palavras-chave: dc.subjectOilfield-produced water-
Palavras-chave: dc.subjectPhosphorene-
Título: dc.titleHigh sensitive phosphorene and molecular imprinted polymers electrochemical sensor to determine benzene in oilfield-produced water-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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