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http://www.repositorio.ufop.br/jspui/handle/123456789/17834
Título: | A hybrid molecularly imprinted polymer for selective adsorption of urinary S-Phenylmercapturic Acid. |
Autor(es): | Gomes, Rafaela de Paiva Tonucci, Marina Caldeira Prete, Maiyara Carolyne Tarley, César Ricardo Teixeira Baeta, Bruno Eduardo Lobo Afonso, Robson José de Cássia Franco |
Palavras-chave: | Benzene S-phenylmercapturic acid Hybrid molecular imprinted polymer 4-vinylpyridine Tetraethyl orthosilicate |
Data do documento: | 2023 |
Referência: | GOMES, R. P. et al. A hybrid molecularly imprinted polymer for selective adsorption of urinary S-Phenylmercapturic Acid. Journal of the Brazilian Chemical Society, v. 34, n. 8, p. 1197-1207, 2023. Disponível em: <https://www.scielo.br/j/jbchs/a/g7jWWKYz8WqrkMgfMVD9ZZh/>. Acesso em: 01 ago. 2023. |
Resumo: | A hybrid molecular imprinted polymer (HMIP) obtained by the organic monomer 4-vinylpyridine (4-VP) and the inorganic precursor tetraethyl orthosilicate (TEOS) was synthesized for the selective extraction of urinary S-phenylmercapturic acid (u-SPMA), a biomarker of benzene exposure. The chemical and structural characterization of the synthetic adsorbent was performed by Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), and textural analysis employing N2 adsorption-desorption isotherms. Selective and adsorptive performance of the imprinted polymers were evaluated by kinetic, isothermal, thermodynamic, and selectivity studies. The kinetic data were well adjusted to pseudo-second order and intraparticle diffusion models, leading to selectivity coefficient (K) value of 0.03 g mg-1 min-1 for HMIP. In addition, the adsorption isotherms were better described by the Sip model achieving a maximum adsorption capacity of 284.81 μg g-1 (at 288.15 K). |
URI: | http://www.repositorio.ufop.br/jspui/handle/123456789/17834 |
DOI: | https://doi.org/10.21577/0103-5053.20230032 |
ISSN: | 1678-4790 |
Licença: | This is an open-access article distributed under the terms of the Creative Commons Attribution License. Fonte: PDF do artigo. |
Aparece nas coleções: | DEQUI - Artigos publicados em periódicos |
Arquivos associados a este item:
Arquivo | Descrição | Tamanho | Formato | |
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ARTIGO_HybridiMolecularyImprinted.pdf | 1,97 MB | Adobe PDF | Visualizar/Abrir |
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