Adsorption of a textile dye from aqueous solutions by carbon nanotubes

Detalhes bibliográficos
Autor(a) principal: Machado,Fernando M.
Data de Publicação: 2014
Outros Autores: Bergmann,Carlos P., Lima,Eder C., Adebayo,Matthew A., Fagan,Solange B.
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=S1516-14392014000700025
Resumo: Multi-walled and single-walled carbon nanotubes were used as adsorbents for the removal of Reactive Blue 4 textile dye from aqueous solutions. The adsorbents were characterised using Raman spectroscopy, N2 adsorption/desorption isotherms and scanning and transmission electron microscopy. The effects of pH, agitation time and temperature on adsorption capacity were studied. In the acidic pH region, the adsorption of the dye was favourable using both adsorbents. The contact time to obtain equilibrium isotherms at 298-323 K was fixed at 4 hours for both adsorbents. For Reactive Blue 4 dye, Liu isotherm model gave the best fit for the equilibrium data. The maximum sorption capacity for adsorption of the dye occurred at 323 K, attaining values of 502.5 and 567.7 mg g-1 for MWCNT and SWCNT, respectively.
id ABMABCABPOL-1_6acbcc810bef08eb9ee90292812db005
oai_identifier_str oai:scielo:S1516-14392014000700025
network_acronym_str ABMABCABPOL-1
network_name_str Materials research (São Carlos. Online)
repository_id_str
spelling Adsorption of a textile dye from aqueous solutions by carbon nanotubescarbon nanotubesadsorptionnonlinear isotherm fittingReactive Blue 4isotherm modelsMulti-walled and single-walled carbon nanotubes were used as adsorbents for the removal of Reactive Blue 4 textile dye from aqueous solutions. The adsorbents were characterised using Raman spectroscopy, N2 adsorption/desorption isotherms and scanning and transmission electron microscopy. The effects of pH, agitation time and temperature on adsorption capacity were studied. In the acidic pH region, the adsorption of the dye was favourable using both adsorbents. The contact time to obtain equilibrium isotherms at 298-323 K was fixed at 4 hours for both adsorbents. For Reactive Blue 4 dye, Liu isotherm model gave the best fit for the equilibrium data. The maximum sorption capacity for adsorption of the dye occurred at 323 K, attaining values of 502.5 and 567.7 mg g-1 for MWCNT and SWCNT, respectively.ABM, ABC, ABPol2014-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392014000700025Materials Research v.17 suppl.1 2014reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/S1516-14392013005000204info:eu-repo/semantics/openAccessMachado,Fernando M.Bergmann,Carlos P.Lima,Eder C.Adebayo,Matthew A.Fagan,Solange B.eng2015-11-06T00:00:00Zoai:scielo:S1516-14392014000700025Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2015-11-06T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false
dc.title.none.fl_str_mv Adsorption of a textile dye from aqueous solutions by carbon nanotubes
title Adsorption of a textile dye from aqueous solutions by carbon nanotubes
spellingShingle Adsorption of a textile dye from aqueous solutions by carbon nanotubes
Machado,Fernando M.
carbon nanotubes
adsorption
nonlinear isotherm fitting
Reactive Blue 4
isotherm models
title_short Adsorption of a textile dye from aqueous solutions by carbon nanotubes
title_full Adsorption of a textile dye from aqueous solutions by carbon nanotubes
title_fullStr Adsorption of a textile dye from aqueous solutions by carbon nanotubes
title_full_unstemmed Adsorption of a textile dye from aqueous solutions by carbon nanotubes
title_sort Adsorption of a textile dye from aqueous solutions by carbon nanotubes
author Machado,Fernando M.
author_facet Machado,Fernando M.
Bergmann,Carlos P.
Lima,Eder C.
Adebayo,Matthew A.
Fagan,Solange B.
author_role author
author2 Bergmann,Carlos P.
Lima,Eder C.
Adebayo,Matthew A.
Fagan,Solange B.
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Machado,Fernando M.
Bergmann,Carlos P.
Lima,Eder C.
Adebayo,Matthew A.
Fagan,Solange B.
dc.subject.por.fl_str_mv carbon nanotubes
adsorption
nonlinear isotherm fitting
Reactive Blue 4
isotherm models
topic carbon nanotubes
adsorption
nonlinear isotherm fitting
Reactive Blue 4
isotherm models
description Multi-walled and single-walled carbon nanotubes were used as adsorbents for the removal of Reactive Blue 4 textile dye from aqueous solutions. The adsorbents were characterised using Raman spectroscopy, N2 adsorption/desorption isotherms and scanning and transmission electron microscopy. The effects of pH, agitation time and temperature on adsorption capacity were studied. In the acidic pH region, the adsorption of the dye was favourable using both adsorbents. The contact time to obtain equilibrium isotherms at 298-323 K was fixed at 4 hours for both adsorbents. For Reactive Blue 4 dye, Liu isotherm model gave the best fit for the equilibrium data. The maximum sorption capacity for adsorption of the dye occurred at 323 K, attaining values of 502.5 and 567.7 mg g-1 for MWCNT and SWCNT, respectively.
publishDate 2014
dc.date.none.fl_str_mv 2014-08-01
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=S1516-14392014000700025
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392014000700025
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1516-14392013005000204
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.17 suppl.1 2014
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_ 1754212664614060032

Registros relacionados