Montmorillonite and vermiculite as solid phases for the preconcentration of trace elements in natural waters : adsorption and desorption studies of As, Ba, Cu, Cd, Co, Cr, Mn, Ni, Pb, Sr, V, and Zn
| Autor(a) principal: | |
|---|---|
| Data de Publicação: | 2014 |
| Outros Autores: | |
| Tipo de documento: | Artigo |
| Título da fonte: | Repositório da Produção Científica e Intelectual da Unicamp |
| Texto Completo: | https://hdl.handle.net/20.500.12733/138 |
Resumo: | Agradecimentos: Authors are grateful to CNPq and CAPES for financial support (PROCAD 0082/05-8) and fellowships. And also thank Instituto de Química da UNICAMP (SP), Brazil by surface area measurements and some determinations by ICP OES |
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Montmorillonite and vermiculite as solid phases for the preconcentration of trace elements in natural waters : adsorption and desorption studies of As, Ba, Cu, Cd, Co, Cr, Mn, Ni, Pb, Sr, V, and ZnMinerais de argilaAdsorçãoClay mineralsAdsorptionArtigo de pesquisaAgradecimentos: Authors are grateful to CNPq and CAPES for financial support (PROCAD 0082/05-8) and fellowships. And also thank Instituto de Química da UNICAMP (SP), Brazil by surface area measurements and some determinations by ICP OESAbstract: An evaluation of the feasibility of vermiculite and K10 montmorillonite for use as adsorbent in the separation and/or preconcentration of elements prior to their determination was performed for As, Ba, Cd, Co, Cr, Cu, Mn, Ni, Pb, Sr, V and Zn. The adsorption of elements onto both clay minerals was studied using a multi-element solution in trace concentrations by batch technique, and no stirring under ambient conditions. Effects of adsorbent concentration, pH and ionic strength were also investigated. The desorption process of the previously adsorbed elements onto clay minerals was studied using HCl and HNO3 as extractors. In general, the adsorbents exhibited excellent sorption properties for most of the elements. The content of adsorption obtained was higher than 70% for almost all cases. On average, at low salt concentration (< 0.05 mol L- 1) the sorption efficiency was only slightly higher in montmorillonite when compared to vermiculite, however the reverse is true at high salt concentration. The adsorption of metal ions onto vermiculite and montmorillonite reduces with decreasing pH and increasing ionic strength. An opposite behavior was observed in the adsorption of oxi-anionic species of arsenic and vanadium. The results of desorption experiments indicated that a single extraction with 1.0 mol L- 1 HNO3 or HCl was sufficient for the recovery of most elements with an average desorption of 82% and 90% for K10 montmorillonite and vermiculite, respectivelyCOORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL DE NÍVEL SUPERIOR - CAPESCONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQFechadoUNIVERSIDADE ESTADUAL DE CAMPINASRohwedder, Jarbas José Rodrigues, 1959-Cadore, Solange, 1956-2014info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.12733/138ROHWEDDER, Jarbas José Rodrigues; CADORE, Solange. Montmorillonite and vermiculite as solid phases for the preconcentration of trace elements in natural waters: adsorption and desorption studies of As, Ba, Cu, Cd, Co, Cr, Mn, Ni, Pb, Sr, V, and Zn. Applied clay science. Amsterdam : Elsevier, 2014. Vol. 99 (Sept., 2014), p. 289-296. Disponível em: https://hdl.handle.net/20.500.12733/138. Acesso em: 24 mai. 2023.Inglêshttps://repositorio.unicamp.br/acervo/detalhe/1230938reponame:Repositório da Produção Científica e Intelectual da Unicampinstname:Universidade Estadual de Campinas (UNICAMP)instacron:UNICAMPinfo:eu-repo/semantics/openAccess2022-08-24T12:54:56Zoai:https://www.repositorio.unicamp.br/:1230938Repositório InstitucionalPUBhttp://repositorio.unicamp.br/oai/requestreposip@unicamp.bropendoar:2022-08-24T12:54:56Repositório da Produção Científica e Intelectual da Unicamp - Universidade Estadual de Campinas (UNICAMP)false |
| dc.title.none.fl_str_mv |
Montmorillonite and vermiculite as solid phases for the preconcentration of trace elements in natural waters : adsorption and desorption studies of As, Ba, Cu, Cd, Co, Cr, Mn, Ni, Pb, Sr, V, and Zn |
| title |
Montmorillonite and vermiculite as solid phases for the preconcentration of trace elements in natural waters : adsorption and desorption studies of As, Ba, Cu, Cd, Co, Cr, Mn, Ni, Pb, Sr, V, and Zn |
| spellingShingle |
Montmorillonite and vermiculite as solid phases for the preconcentration of trace elements in natural waters : adsorption and desorption studies of As, Ba, Cu, Cd, Co, Cr, Mn, Ni, Pb, Sr, V, and Zn Rohwedder, Jarbas José Rodrigues, 1959- Minerais de argila Adsorção Clay minerals Adsorption Artigo de pesquisa |
| title_short |
Montmorillonite and vermiculite as solid phases for the preconcentration of trace elements in natural waters : adsorption and desorption studies of As, Ba, Cu, Cd, Co, Cr, Mn, Ni, Pb, Sr, V, and Zn |
| title_full |
Montmorillonite and vermiculite as solid phases for the preconcentration of trace elements in natural waters : adsorption and desorption studies of As, Ba, Cu, Cd, Co, Cr, Mn, Ni, Pb, Sr, V, and Zn |
| title_fullStr |
Montmorillonite and vermiculite as solid phases for the preconcentration of trace elements in natural waters : adsorption and desorption studies of As, Ba, Cu, Cd, Co, Cr, Mn, Ni, Pb, Sr, V, and Zn |
| title_full_unstemmed |
Montmorillonite and vermiculite as solid phases for the preconcentration of trace elements in natural waters : adsorption and desorption studies of As, Ba, Cu, Cd, Co, Cr, Mn, Ni, Pb, Sr, V, and Zn |
| title_sort |
Montmorillonite and vermiculite as solid phases for the preconcentration of trace elements in natural waters : adsorption and desorption studies of As, Ba, Cu, Cd, Co, Cr, Mn, Ni, Pb, Sr, V, and Zn |
| author |
Rohwedder, Jarbas José Rodrigues, 1959- |
| author_facet |
Rohwedder, Jarbas José Rodrigues, 1959- Cadore, Solange, 1956- |
| author_role |
author |
| author2 |
Cadore, Solange, 1956- |
| author2_role |
author |
| dc.contributor.none.fl_str_mv |
UNIVERSIDADE ESTADUAL DE CAMPINAS |
| dc.contributor.author.fl_str_mv |
Rohwedder, Jarbas José Rodrigues, 1959- Cadore, Solange, 1956- |
| dc.subject.por.fl_str_mv |
Minerais de argila Adsorção Clay minerals Adsorption Artigo de pesquisa |
| topic |
Minerais de argila Adsorção Clay minerals Adsorption Artigo de pesquisa |
| description |
Agradecimentos: Authors are grateful to CNPq and CAPES for financial support (PROCAD 0082/05-8) and fellowships. And also thank Instituto de Química da UNICAMP (SP), Brazil by surface area measurements and some determinations by ICP OES |
| publishDate |
2014 |
| dc.date.none.fl_str_mv |
2014 |
| dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
| dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
| format |
article |
| status_str |
publishedVersion |
| dc.identifier.uri.fl_str_mv |
https://hdl.handle.net/20.500.12733/138 ROHWEDDER, Jarbas José Rodrigues; CADORE, Solange. Montmorillonite and vermiculite as solid phases for the preconcentration of trace elements in natural waters: adsorption and desorption studies of As, Ba, Cu, Cd, Co, Cr, Mn, Ni, Pb, Sr, V, and Zn. Applied clay science. Amsterdam : Elsevier, 2014. Vol. 99 (Sept., 2014), p. 289-296. Disponível em: https://hdl.handle.net/20.500.12733/138. Acesso em: 24 mai. 2023. |
| url |
https://hdl.handle.net/20.500.12733/138 |
| identifier_str_mv |
ROHWEDDER, Jarbas José Rodrigues; CADORE, Solange. Montmorillonite and vermiculite as solid phases for the preconcentration of trace elements in natural waters: adsorption and desorption studies of As, Ba, Cu, Cd, Co, Cr, Mn, Ni, Pb, Sr, V, and Zn. Applied clay science. Amsterdam : Elsevier, 2014. Vol. 99 (Sept., 2014), p. 289-296. Disponível em: https://hdl.handle.net/20.500.12733/138. Acesso em: 24 mai. 2023. |
| dc.language.iso.fl_str_mv |
Inglês |
| language_invalid_str_mv |
Inglês |
| dc.relation.none.fl_str_mv |
https://repositorio.unicamp.br/acervo/detalhe/1230938 |
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info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf |
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reponame:Repositório da Produção Científica e Intelectual da Unicamp instname:Universidade Estadual de Campinas (UNICAMP) instacron:UNICAMP |
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Universidade Estadual de Campinas (UNICAMP) |
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UNICAMP |
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UNICAMP |
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Repositório da Produção Científica e Intelectual da Unicamp |
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Repositório da Produção Científica e Intelectual da Unicamp |
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Repositório da Produção Científica e Intelectual da Unicamp - Universidade Estadual de Campinas (UNICAMP) |
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reposip@unicamp.br |
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1766887320508694528 |