Caffeine Adsorption onto Bentonite Clay in Suspension and Immobilized

Detalhes bibliográficos
Autor(a) principal: Lenzi,Giane Gonçalves
Data de Publicação: 2020
Outros Autores: Fuziki,Maria Eduarda Kounaris, Fidelis,Michel Zampieri, Fávaro,Yuri Barros, Ribeiro,Mauricio Aparecido, Chaves,Eduardo Sidinei, Lenzi,Ervin Kaminski
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Archives of Biology and Technology
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132020000100604
Resumo: Abstract This study describes the use of bentonite in suspension for the caffeine adsorption (pollutant of emerging concern) by taking different conditions of the pH, adsorbent mass, adsorbent calcination temperature and interferents into account. The results were compared with those obtained using bentonite immobilized in alginate beads. The acid medium has a greater efficiency for the caffeine adsorption and the adsorbent calcination temperature exerts, due to structural changes. Caffeine removal higher than 90% was obtained at optimized conditions. The Langmuir model indicated a better fit of the data and the adsorption capacity of caffeine onto bentonite. The bentonite immobilized led to a slower adsorption process in relation to the suspended.
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spelling Caffeine Adsorption onto Bentonite Clay in Suspension and Immobilizedadsorptioncaffeine removalimmobilized Bentoniteemerging pollutantsAbstract This study describes the use of bentonite in suspension for the caffeine adsorption (pollutant of emerging concern) by taking different conditions of the pH, adsorbent mass, adsorbent calcination temperature and interferents into account. The results were compared with those obtained using bentonite immobilized in alginate beads. The acid medium has a greater efficiency for the caffeine adsorption and the adsorbent calcination temperature exerts, due to structural changes. Caffeine removal higher than 90% was obtained at optimized conditions. The Langmuir model indicated a better fit of the data and the adsorption capacity of caffeine onto bentonite. The bentonite immobilized led to a slower adsorption process in relation to the suspended.Instituto de Tecnologia do Paraná - Tecpar2020-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132020000100604Brazilian Archives of Biology and Technology v.63 2020reponame:Brazilian Archives of Biology and Technologyinstname:Instituto de Tecnologia do Paraná (Tecpar)instacron:TECPAR10.1590/1678-4324-2020180637info:eu-repo/semantics/openAccessLenzi,Giane GonçalvesFuziki,Maria Eduarda KounarisFidelis,Michel ZampieriFávaro,Yuri BarrosRibeiro,Mauricio AparecidoChaves,Eduardo SidineiLenzi,Ervin Kaminskieng2020-08-06T00:00:00Zoai:scielo:S1516-89132020000100604Revistahttps://www.scielo.br/j/babt/https://old.scielo.br/oai/scielo-oai.phpbabt@tecpar.br||babt@tecpar.br1678-43241516-8913opendoar:2020-08-06T00:00Brazilian Archives of Biology and Technology - Instituto de Tecnologia do Paraná (Tecpar)false
dc.title.none.fl_str_mv Caffeine Adsorption onto Bentonite Clay in Suspension and Immobilized
title Caffeine Adsorption onto Bentonite Clay in Suspension and Immobilized
spellingShingle Caffeine Adsorption onto Bentonite Clay in Suspension and Immobilized
Lenzi,Giane Gonçalves
adsorption
caffeine removal
immobilized Bentonite
emerging pollutants
title_short Caffeine Adsorption onto Bentonite Clay in Suspension and Immobilized
title_full Caffeine Adsorption onto Bentonite Clay in Suspension and Immobilized
title_fullStr Caffeine Adsorption onto Bentonite Clay in Suspension and Immobilized
title_full_unstemmed Caffeine Adsorption onto Bentonite Clay in Suspension and Immobilized
title_sort Caffeine Adsorption onto Bentonite Clay in Suspension and Immobilized
author Lenzi,Giane Gonçalves
author_facet Lenzi,Giane Gonçalves
Fuziki,Maria Eduarda Kounaris
Fidelis,Michel Zampieri
Fávaro,Yuri Barros
Ribeiro,Mauricio Aparecido
Chaves,Eduardo Sidinei
Lenzi,Ervin Kaminski
author_role author
author2 Fuziki,Maria Eduarda Kounaris
Fidelis,Michel Zampieri
Fávaro,Yuri Barros
Ribeiro,Mauricio Aparecido
Chaves,Eduardo Sidinei
Lenzi,Ervin Kaminski
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Lenzi,Giane Gonçalves
Fuziki,Maria Eduarda Kounaris
Fidelis,Michel Zampieri
Fávaro,Yuri Barros
Ribeiro,Mauricio Aparecido
Chaves,Eduardo Sidinei
Lenzi,Ervin Kaminski
dc.subject.por.fl_str_mv adsorption
caffeine removal
immobilized Bentonite
emerging pollutants
topic adsorption
caffeine removal
immobilized Bentonite
emerging pollutants
description Abstract This study describes the use of bentonite in suspension for the caffeine adsorption (pollutant of emerging concern) by taking different conditions of the pH, adsorbent mass, adsorbent calcination temperature and interferents into account. The results were compared with those obtained using bentonite immobilized in alginate beads. The acid medium has a greater efficiency for the caffeine adsorption and the adsorbent calcination temperature exerts, due to structural changes. Caffeine removal higher than 90% was obtained at optimized conditions. The Langmuir model indicated a better fit of the data and the adsorption capacity of caffeine onto bentonite. The bentonite immobilized led to a slower adsorption process in relation to the suspended.
publishDate 2020
dc.date.none.fl_str_mv 2020-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132020000100604
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132020000100604
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1678-4324-2020180637
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Instituto de Tecnologia do Paraná - Tecpar
publisher.none.fl_str_mv Instituto de Tecnologia do Paraná - Tecpar
dc.source.none.fl_str_mv Brazilian Archives of Biology and Technology v.63 2020
reponame:Brazilian Archives of Biology and Technology
instname:Instituto de Tecnologia do Paraná (Tecpar)
instacron:TECPAR
instname_str Instituto de Tecnologia do Paraná (Tecpar)
instacron_str TECPAR
institution TECPAR
reponame_str Brazilian Archives of Biology and Technology
collection Brazilian Archives of Biology and Technology
repository.name.fl_str_mv Brazilian Archives of Biology and Technology - Instituto de Tecnologia do Paraná (Tecpar)
repository.mail.fl_str_mv babt@tecpar.br||babt@tecpar.br
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