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Registro Completo |
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
19/03/2025 |
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Data da última atualização: |
25/04/2025 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
RUELLAS, T. M. O.; MALAFATTI, J. O. D.; PARIS, E. C.; GIRALDI, T. R. |
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Afiliação: |
INSTITUTE OF SCIENCE AND TECHNOLOGY, FEDERAL UNIVERSITY OF ALFENAS; JOÃO OTÁVIO DONIZETTE MALAFATTI, UNIVERSIDADE FEDERAL DE SÃO CARLOS; ELAINE CRISTINA PARIS, CNPDIA; INSTITUTE OF SCIENCE AND TECHNOLOGY, FEDERAL UNIVERSITY OF ALFENAS. |
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Título: |
Kinetic and isotherm adsorption studies of Zn (II) ions on hydroxyapatite nanoparticles: Linear and nonlinear. analyses |
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Ano de publicação: |
2025 |
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Fonte/Imprenta: |
International Journal of Applied Ceramic Technology, v.22, e14930, 2025. |
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Páginas: |
18 p. |
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DOI: |
https://doi.org/10.1111/ijac.14930 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract Rapid industrialization has led to significant environmental challenges, including the disposal of effluents with high zinc ion concentrations. This study investigates the use of hydroxyapatite nanoparticles as an adsorbent for Zn (II) ions from aqueous solutions at neutral pH. These nanoparticles are characterized by their high purity, mesoporous structure, and a specific surface area of 60.97 ± .40 m2 g−1 . Their thermal stability was confirmed by thermogravimetric analysis, and zeta potential measurements indicated a surface charge close to the isoelectric point. Adsorption experiments showed that the kinetics fit well with the pseudo-second-order model, with a rate constant of 2.58 ± .49 min−1 mg−1 and a determination coefficient (R2) of 1.00. Isotherm analyses using Redlich–Peterson, Langmuir, and Freundlich models revealed the highest adsorption apacity and best fitting with the Redlich–Peterson model, showing maximum capacities of 30.36 mg g−1 (linear fitting) and 32.11 mg g−1 (nonlinear fitting). These fits achieved R2 values of .9949 and .9923, respectively, suggesting efficient and reliable adsorption profiles. This research highlights the potential of hydroxyapatite nanoparticles for effective zinc ion removal, supporting their application in sustainable industrial practices and environmental remediation. |
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Palavras-Chave: |
Adsorption behavior; Isotherm adsorption; Isotherm models; Kinetic studies; Linear analyses. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02146naa a2200241 a 4500
001 2174056
005 2025-04-25
008 2025 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1111/ijac.14930$2DOI
100 1 $aRUELLAS, T. M. O.
245 $aKinetic and isotherm adsorption studies of Zn (II) ions on hydroxyapatite nanoparticles$bLinear and nonlinear. analyses$h[electronic resource]
260 $c2025
300 $a18 p.
520 $aAbstract Rapid industrialization has led to significant environmental challenges, including the disposal of effluents with high zinc ion concentrations. This study investigates the use of hydroxyapatite nanoparticles as an adsorbent for Zn (II) ions from aqueous solutions at neutral pH. These nanoparticles are characterized by their high purity, mesoporous structure, and a specific surface area of 60.97 ± .40 m2 g−1 . Their thermal stability was confirmed by thermogravimetric analysis, and zeta potential measurements indicated a surface charge close to the isoelectric point. Adsorption experiments showed that the kinetics fit well with the pseudo-second-order model, with a rate constant of 2.58 ± .49 min−1 mg−1 and a determination coefficient (R2) of 1.00. Isotherm analyses using Redlich–Peterson, Langmuir, and Freundlich models revealed the highest adsorption apacity and best fitting with the Redlich–Peterson model, showing maximum capacities of 30.36 mg g−1 (linear fitting) and 32.11 mg g−1 (nonlinear fitting). These fits achieved R2 values of .9949 and .9923, respectively, suggesting efficient and reliable adsorption profiles. This research highlights the potential of hydroxyapatite nanoparticles for effective zinc ion removal, supporting their application in sustainable industrial practices and environmental remediation.
653 $aAdsorption behavior
653 $aIsotherm adsorption
653 $aIsotherm models
653 $aKinetic studies
653 $aLinear analyses
700 1 $aMALAFATTI, J. O. D.
700 1 $aPARIS, E. C.
700 1 $aGIRALDI, T. R.
773 $tInternational Journal of Applied Ceramic Technology$gv.22, e14930, 2025.
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| 2. |  | ABDELNUR, P. V.; SARAIVA, S. A.; CATHARINO, R. R.; COELHO, M.; SCHWAB, N.; GARCIA, C. M.; SCHUCHARDT, U.; SOUZA, V.; EBERLIN, M. N. Blends of soybean biodiesel with petrodiesel: direct quantitation via mass spectrometry. Journal of the Brazilian Chemical Society, v. 4, n. 6, p. 946-952, 2013.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
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| Registros recuperados : 7 | |
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