Adsorption of Calcium(II), Cadmium(II) and Copper(II) ions from water by prepared silicon-aluminum-zirconium oxide using sol-gel process
Autor(a) principal: | |
---|---|
Data de Publicação: | 2021 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.21577/0103-5053.20210032 http://hdl.handle.net/11449/207871 |
Resumo: | Ternary oxide silica-alumina-zirconia (SiO2/Al2O3/ZrO2) obtained by the sol-gel process was applied as novel adsorbent of ions in aqueous solution. Batch isotherms were performed using standard CuII, CdII and CaII solutions at variable pH and different concentrations. Adsorption capacity was best at weakly acidic pH. The maximum adsorption capacities were 2.28 mg g−1 for CaII, 9.89 mg g−1 for CdII, and 14.88 mg g−1 for CuII. The adsorption data fitted well to the single and dual-site Langmuir-Freundlich isotherm models. However, since the adsorption is very low in the sites with high energy, the single-site Langmuir-Freundlich provided a good fit as well. Whereas, the site responsible for the most ion adsorption was assigned to the Zr−OH group. A real sample of produced water was also tested. The new adsorbent showed a wide ability to retain many metal ions (alkali-earth, transition, and p-block metals) and even some anions were also caught by the adsorbent. The ternary oxide silica-alumina-zirconia was found to be a promising alternative adsorbent for metal ions in aqueous media. |
id |
UNSP_05c6482a9c5e39e636f8f7d7580345e6 |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/207871 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
Adsorption of Calcium(II), Cadmium(II) and Copper(II) ions from water by prepared silicon-aluminum-zirconium oxide using sol-gel processIsothermMetal ions adsorptionSiO2/Al2O3/ZrO2Sol-gel processTernary oxideTernary oxide silica-alumina-zirconia (SiO2/Al2O3/ZrO2) obtained by the sol-gel process was applied as novel adsorbent of ions in aqueous solution. Batch isotherms were performed using standard CuII, CdII and CaII solutions at variable pH and different concentrations. Adsorption capacity was best at weakly acidic pH. The maximum adsorption capacities were 2.28 mg g−1 for CaII, 9.89 mg g−1 for CdII, and 14.88 mg g−1 for CuII. The adsorption data fitted well to the single and dual-site Langmuir-Freundlich isotherm models. However, since the adsorption is very low in the sites with high energy, the single-site Langmuir-Freundlich provided a good fit as well. Whereas, the site responsible for the most ion adsorption was assigned to the Zr−OH group. A real sample of produced water was also tested. The new adsorbent showed a wide ability to retain many metal ions (alkali-earth, transition, and p-block metals) and even some anions were also caught by the adsorbent. The ternary oxide silica-alumina-zirconia was found to be a promising alternative adsorbent for metal ions in aqueous media.Agência Nacional do Petróleo, Gás Natural e BiocombustíveisCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ)Instituto de Química Universidade Federal do Rio de Janeiro (UFRJ) CT Bloco A Cidade Universitária Ilha do FundãoInstituto Nacional de Tecnologias Alternativas para Detecção Avaliação Toxicológica e Remoção de Micropoluentes e Radioativos (INCT-DATREM) Instituto de Química Universidade Estadual Paulista (Unesp) CP 355Departamento de Química Universidade Estadual de Londrina (UEL)Instituto Nacional de Ciência e Tecnologia (INCT) em Bioanalítica Departamento de Química Analítica Instituto de Química Universidade Estadual de Campinas (UNICAMP)Instituto Nacional de Tecnologias Alternativas para Detecção Avaliação Toxicológica e Remoção de Micropoluentes e Radioativos (INCT-DATREM) Instituto de Química Universidade Estadual Paulista (Unesp) CP 355Universidade Federal do Rio de Janeiro (UFRJ)Universidade Estadual Paulista (Unesp)Universidade Estadual de Londrina (UEL)Universidade Estadual de Campinas (UNICAMP)da Silva, Cristiano N. [UNESP]Prete, Maiyara C.Tarley, César R.T.Afonso, Júlio C.Ribeiro, Emerson S. [UNESP]2021-06-25T11:02:26Z2021-06-25T11:02:26Z2021-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1345-1353application/pdfhttp://dx.doi.org/10.21577/0103-5053.20210032Journal of the Brazilian Chemical Society, v. 32, n. 7, p. 1345-1353, 2021.1678-47900103-5053http://hdl.handle.net/11449/20787110.21577/0103-5053.20210032S0103-505320210007013452-s2.0-85107817333S0103-50532021000701345.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of the Brazilian Chemical Societyinfo:eu-repo/semantics/openAccess2024-01-02T06:21:15Zoai:repositorio.unesp.br:11449/207871Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-01-02T06:21:15Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Adsorption of Calcium(II), Cadmium(II) and Copper(II) ions from water by prepared silicon-aluminum-zirconium oxide using sol-gel process |
title |
Adsorption of Calcium(II), Cadmium(II) and Copper(II) ions from water by prepared silicon-aluminum-zirconium oxide using sol-gel process |
spellingShingle |
Adsorption of Calcium(II), Cadmium(II) and Copper(II) ions from water by prepared silicon-aluminum-zirconium oxide using sol-gel process da Silva, Cristiano N. [UNESP] Isotherm Metal ions adsorption SiO2/Al2O3/ZrO2 Sol-gel process Ternary oxide |
title_short |
Adsorption of Calcium(II), Cadmium(II) and Copper(II) ions from water by prepared silicon-aluminum-zirconium oxide using sol-gel process |
title_full |
Adsorption of Calcium(II), Cadmium(II) and Copper(II) ions from water by prepared silicon-aluminum-zirconium oxide using sol-gel process |
title_fullStr |
Adsorption of Calcium(II), Cadmium(II) and Copper(II) ions from water by prepared silicon-aluminum-zirconium oxide using sol-gel process |
title_full_unstemmed |
Adsorption of Calcium(II), Cadmium(II) and Copper(II) ions from water by prepared silicon-aluminum-zirconium oxide using sol-gel process |
title_sort |
Adsorption of Calcium(II), Cadmium(II) and Copper(II) ions from water by prepared silicon-aluminum-zirconium oxide using sol-gel process |
author |
da Silva, Cristiano N. [UNESP] |
author_facet |
da Silva, Cristiano N. [UNESP] Prete, Maiyara C. Tarley, César R.T. Afonso, Júlio C. Ribeiro, Emerson S. [UNESP] |
author_role |
author |
author2 |
Prete, Maiyara C. Tarley, César R.T. Afonso, Júlio C. Ribeiro, Emerson S. [UNESP] |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Federal do Rio de Janeiro (UFRJ) Universidade Estadual Paulista (Unesp) Universidade Estadual de Londrina (UEL) Universidade Estadual de Campinas (UNICAMP) |
dc.contributor.author.fl_str_mv |
da Silva, Cristiano N. [UNESP] Prete, Maiyara C. Tarley, César R.T. Afonso, Júlio C. Ribeiro, Emerson S. [UNESP] |
dc.subject.por.fl_str_mv |
Isotherm Metal ions adsorption SiO2/Al2O3/ZrO2 Sol-gel process Ternary oxide |
topic |
Isotherm Metal ions adsorption SiO2/Al2O3/ZrO2 Sol-gel process Ternary oxide |
description |
Ternary oxide silica-alumina-zirconia (SiO2/Al2O3/ZrO2) obtained by the sol-gel process was applied as novel adsorbent of ions in aqueous solution. Batch isotherms were performed using standard CuII, CdII and CaII solutions at variable pH and different concentrations. Adsorption capacity was best at weakly acidic pH. The maximum adsorption capacities were 2.28 mg g−1 for CaII, 9.89 mg g−1 for CdII, and 14.88 mg g−1 for CuII. The adsorption data fitted well to the single and dual-site Langmuir-Freundlich isotherm models. However, since the adsorption is very low in the sites with high energy, the single-site Langmuir-Freundlich provided a good fit as well. Whereas, the site responsible for the most ion adsorption was assigned to the Zr−OH group. A real sample of produced water was also tested. The new adsorbent showed a wide ability to retain many metal ions (alkali-earth, transition, and p-block metals) and even some anions were also caught by the adsorbent. The ternary oxide silica-alumina-zirconia was found to be a promising alternative adsorbent for metal ions in aqueous media. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-06-25T11:02:26Z 2021-06-25T11:02:26Z 2021-01-01 |
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 |
http://dx.doi.org/10.21577/0103-5053.20210032 Journal of the Brazilian Chemical Society, v. 32, n. 7, p. 1345-1353, 2021. 1678-4790 0103-5053 http://hdl.handle.net/11449/207871 10.21577/0103-5053.20210032 S0103-50532021000701345 2-s2.0-85107817333 S0103-50532021000701345.pdf |
url |
http://dx.doi.org/10.21577/0103-5053.20210032 http://hdl.handle.net/11449/207871 |
identifier_str_mv |
Journal of the Brazilian Chemical Society, v. 32, n. 7, p. 1345-1353, 2021. 1678-4790 0103-5053 10.21577/0103-5053.20210032 S0103-50532021000701345 2-s2.0-85107817333 S0103-50532021000701345.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of the Brazilian Chemical Society |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
1345-1353 application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1797790182053773312 |