Characterization and evaluation of copper and nickel biosorption on acidic algae Sargassum Filipendula
Autor(a) principal: | |
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Data de Publicação: | 2010 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Materials research (São Carlos. Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392010000400018 |
Resumo: | The marine algae Sargassum filipendula was collected from São Paulo seashore (Brazil) and submitted to treatment with acid. The biosorption mechanisms of Cu2+ and Ni2+ ions onto acidic algae Sargassum filipendula were examined using various analytical techniques: Fourier-transform infrared (FT-IR) spectroscopy, scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX) and potentiometric titration (pH ZPC). The effect of acidic treatment on algae by hydrochloric acid (pH 2.0, 3.0, 4.0 and 5.0) was evaluated for Cu2+ and Ni2+ adsorption. Alginate was extracted from raw algae and the two types of acids present in the biomass (β-D-mannuronic (M) and α-L-guluronic (G) acid) were characterized by 13C NMR. The M/G ratio was found to be 0.50. According to the pH ZPC analysis, at a pH higher than 5.5 the acidified algae surface presents a negative charge. The FT-IR analyses showed that the main chemical groups involved in the biosorption were carboxylic, alcoholic, sulfonate and amino groups. |
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Characterization and evaluation of copper and nickel biosorption on acidic algae Sargassum Filipendula13C NMRFT-IRMEV/EDXalginateacid treatmentThe marine algae Sargassum filipendula was collected from São Paulo seashore (Brazil) and submitted to treatment with acid. The biosorption mechanisms of Cu2+ and Ni2+ ions onto acidic algae Sargassum filipendula were examined using various analytical techniques: Fourier-transform infrared (FT-IR) spectroscopy, scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX) and potentiometric titration (pH ZPC). The effect of acidic treatment on algae by hydrochloric acid (pH 2.0, 3.0, 4.0 and 5.0) was evaluated for Cu2+ and Ni2+ adsorption. Alginate was extracted from raw algae and the two types of acids present in the biomass (β-D-mannuronic (M) and α-L-guluronic (G) acid) were characterized by 13C NMR. The M/G ratio was found to be 0.50. According to the pH ZPC analysis, at a pH higher than 5.5 the acidified algae surface presents a negative charge. The FT-IR analyses showed that the main chemical groups involved in the biosorption were carboxylic, alcoholic, sulfonate and amino groups.ABM, ABC, ABPol2010-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392010000400018Materials Research v.13 n.4 2010reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/S1516-14392010000400018info:eu-repo/semantics/openAccessKleinübing,Sirlei JaianaVieira,Rodrigo SilveiraBeppu,Marisa MasumiGuibal,EricSilva,Meuris Gurgel Carlos daeng2011-01-24T00:00:00Zoai:scielo:S1516-14392010000400018Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2011-01-24T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false |
dc.title.none.fl_str_mv |
Characterization and evaluation of copper and nickel biosorption on acidic algae Sargassum Filipendula |
title |
Characterization and evaluation of copper and nickel biosorption on acidic algae Sargassum Filipendula |
spellingShingle |
Characterization and evaluation of copper and nickel biosorption on acidic algae Sargassum Filipendula Kleinübing,Sirlei Jaiana 13C NMR FT-IR MEV/EDX alginate acid treatment |
title_short |
Characterization and evaluation of copper and nickel biosorption on acidic algae Sargassum Filipendula |
title_full |
Characterization and evaluation of copper and nickel biosorption on acidic algae Sargassum Filipendula |
title_fullStr |
Characterization and evaluation of copper and nickel biosorption on acidic algae Sargassum Filipendula |
title_full_unstemmed |
Characterization and evaluation of copper and nickel biosorption on acidic algae Sargassum Filipendula |
title_sort |
Characterization and evaluation of copper and nickel biosorption on acidic algae Sargassum Filipendula |
author |
Kleinübing,Sirlei Jaiana |
author_facet |
Kleinübing,Sirlei Jaiana Vieira,Rodrigo Silveira Beppu,Marisa Masumi Guibal,Eric Silva,Meuris Gurgel Carlos da |
author_role |
author |
author2 |
Vieira,Rodrigo Silveira Beppu,Marisa Masumi Guibal,Eric Silva,Meuris Gurgel Carlos da |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Kleinübing,Sirlei Jaiana Vieira,Rodrigo Silveira Beppu,Marisa Masumi Guibal,Eric Silva,Meuris Gurgel Carlos da |
dc.subject.por.fl_str_mv |
13C NMR FT-IR MEV/EDX alginate acid treatment |
topic |
13C NMR FT-IR MEV/EDX alginate acid treatment |
description |
The marine algae Sargassum filipendula was collected from São Paulo seashore (Brazil) and submitted to treatment with acid. The biosorption mechanisms of Cu2+ and Ni2+ ions onto acidic algae Sargassum filipendula were examined using various analytical techniques: Fourier-transform infrared (FT-IR) spectroscopy, scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX) and potentiometric titration (pH ZPC). The effect of acidic treatment on algae by hydrochloric acid (pH 2.0, 3.0, 4.0 and 5.0) was evaluated for Cu2+ and Ni2+ adsorption. Alginate was extracted from raw algae and the two types of acids present in the biomass (β-D-mannuronic (M) and α-L-guluronic (G) acid) were characterized by 13C NMR. The M/G ratio was found to be 0.50. According to the pH ZPC analysis, at a pH higher than 5.5 the acidified algae surface presents a negative charge. The FT-IR analyses showed that the main chemical groups involved in the biosorption were carboxylic, alcoholic, sulfonate and amino groups. |
publishDate |
2010 |
dc.date.none.fl_str_mv |
2010-12-01 |
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=S1516-14392010000400018 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392010000400018 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1516-14392010000400018 |
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 |
ABM, ABC, ABPol |
publisher.none.fl_str_mv |
ABM, ABC, ABPol |
dc.source.none.fl_str_mv |
Materials Research v.13 n.4 2010 reponame:Materials research (São Carlos. Online) instname:Universidade Federal de São Carlos (UFSCAR) instacron:ABM ABC ABPOL |
instname_str |
Universidade Federal de São Carlos (UFSCAR) |
instacron_str |
ABM ABC ABPOL |
institution |
ABM ABC ABPOL |
reponame_str |
Materials research (São Carlos. Online) |
collection |
Materials research (São Carlos. Online) |
repository.name.fl_str_mv |
Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR) |
repository.mail.fl_str_mv |
dedz@power.ufscar.br |
_version_ |
1754212659719307264 |