Rational design of an ion-imprinted polymer for aqueous methylmercury sorption

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorNational University of Engineering-
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorToxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM)-
Autor(es): dc.contributorFluminense Federal University (UFF)-
Autor(es): dc.contributorInstitute of Food Technology (ITAL)-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.creatorMesa, Ruddy L. M.-
Autor(es): dc.creatorVilla, Javier E. L. [UNESP]-
Autor(es): dc.creatorKhan, Sabir [UNESP]-
Autor(es): dc.creatorAlves Peixoto, Rafaella R.-
Autor(es): dc.creatorMorgano, Marcelo A.-
Autor(es): dc.creatorGonçalves, Luís Moreira-
Autor(es): dc.creatorSotomayor, Maria D. P. T. [UNESP]-
Autor(es): dc.creatorPicasso, Gino-
Data de aceite: dc.date.accessioned2022-02-22T00:44:48Z-
Data de disponibilização: dc.date.available2022-02-22T00:44:48Z-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2020-11-30-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.3390/nano10122541-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/205607-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/205607-
Descrição: dc.descriptionMethylmercury (MeHg+) is a mercury species that is very toxic for humans, and its monitoring and sorption from environmental samples of water are a public health concern. In this work, a combination of theory and experiment was used to rationally synthesize an ion-imprinted polymer (IIP) with the aim of the extraction of MeHg+ from samples of water. Interactions among MeHg+ and possible reaction components in the pre-polymerization stage were studied by computational simulation using density functional theory. Accordingly, 2-mercaptobenzimidazole (MBI) and 2-mercaptobenzothiazole (MBT), acrylic acid (AA) and ethanol were predicted as excellent sulfhydryl ligands, a functional monomer and porogenic solvent, respectively. Characterization studies by scanning electron microscopy (SEM) and Brunauer–Emmett–Teller (BET) revealed the obtention of porous materials with specific surface areas of 11 m2 g−1 (IIP–MBI–AA) and 5.3 m2 g−1 (IIP–MBT–AA). Under optimized conditions, the maximum adsorption capacities were 157 µg g−1 (for IIP–MBI–AA) and 457 µg g−1 (for IIP–MBT–AA). The IIP–MBT–AA was selected for further experiments and application, and the selectivity coefficients were MeHg+ /Hg2+ (0.86), MeHg+ /Cd2+ (260), MeHg+ /Pb2+ (288) and MeHg+ /Zn2+ (1510), highlighting the material’s high affinity for MeHg+. The IIP was successfully applied to the sorption of MeHg+ in river and tap water samples at environmentally relevant concentrations.-
Descrição: dc.descriptionUniversidade Estadual Paulista-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionFondo Nacional de Desarrollo Científico y Tecnológico-
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.descriptionLaboratory of Physical Chemistry Research Faculty of Sciences National University of Engineering-
Descrição: dc.descriptionInstitute of Chemistry State University of São Paulo (UNESP)-
Descrição: dc.descriptionNational Institute for Alternative Technologies of Detection Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM)-
Descrição: dc.descriptionDepartment of Analytical Chemistry Fluminense Federal University (UFF)-
Descrição: dc.descriptionInstitute of Food Technology (ITAL)-
Descrição: dc.descriptionInstitute of Chemistry University of São Paulo (USP)-
Descrição: dc.descriptionInstitute of Chemistry State University of São Paulo (UNESP)-
Descrição: dc.descriptionCAPES: 001-
Descrição: dc.descriptionFondo Nacional de Desarrollo Científico y Tecnológico: 023-2019-
Descrição: dc.descriptionFAPESP: 2014/50945-4-
Descrição: dc.descriptionFAPESP: 2017/24198-2-
Descrição: dc.descriptionFAPESP: 2018/14425-7-
Descrição: dc.descriptionFAPESP: 2019/00677-7-
Descrição: dc.descriptionFondo Nacional de Desarrollo Científico y Tecnológico: 227-2018-
Descrição: dc.descriptionCNPq: 301728/2019-4-
Descrição: dc.descriptionCNPq: 408050/2018-7-
Descrição: dc.descriptionCNPq: 465571/2014-0-
Formato: dc.format1-14-
Idioma: dc.languageen-
Relação: dc.relationNanomaterials-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectBulk polymerization-
Palavras-chave: dc.subjectComputational modelling-
Palavras-chave: dc.subjectEnvironmental analysis-
Palavras-chave: dc.subjectImprinting technology-
Palavras-chave: dc.subjectIon recognition-
Palavras-chave: dc.subjectIonic imprinting polymers-
Palavras-chave: dc.subjectMercury detection and removal-
Palavras-chave: dc.subjectSample preparation-
Palavras-chave: dc.subjectSeparation science-
Palavras-chave: dc.subjectWater analysis-
Título: dc.titleRational design of an ion-imprinted polymer for aqueous methylmercury sorption-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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