Adsorption of Silver (I) From Aqueous Solution Using Chitosan/Montmorillonite Composite Beads

Detalhes bibliográficos
Autor(a) principal: Jintakosol,Thanut
Data de Publicação: 2016
Outros Autores: Nitayaphat,Walaikorn
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=S1516-14392016000501114
Resumo: Chitosan/montmorillonite (CTS-MMT) composite beads were used as adsorbents for the removal of silver ion (Ag+) from aqueous solution. Equilibrium adsorption was achieved within 150 min at 3% MMT of chitosan solution. The optimum pH value for Ag+ removal was found to be 6-7. The maximum adsorbent dosage for Ag+ removal was 5 g/L. Under above maximum conditions the Ag+ removal was 95.7%. The maximum adsorption capacities of CTS and CTS-MMT composite beads as obtained from Langmuir isotherm were found to be 38.46 and 43.48 mg/g, respectively. The adsorption kinetic agrees well with the pseudo second order model. The Ag+ desorption of CTS-MMT composite bead was 17.39% at pH=4. SEM/EDX images confirm that after adsorption the Ag+ were dispersed onto the composite bead surface. The adsorption and desorption experiment demonstrated that the CTS-MMT composite beads can be used as an effective adsorbents for removal of Ag+ from aqueous solution.
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spelling Adsorption of Silver (I) From Aqueous Solution Using Chitosan/Montmorillonite Composite BeadsAdsorptionChitosanCompositeMontmorilloniteSilverChitosan/montmorillonite (CTS-MMT) composite beads were used as adsorbents for the removal of silver ion (Ag+) from aqueous solution. Equilibrium adsorption was achieved within 150 min at 3% MMT of chitosan solution. The optimum pH value for Ag+ removal was found to be 6-7. The maximum adsorbent dosage for Ag+ removal was 5 g/L. Under above maximum conditions the Ag+ removal was 95.7%. The maximum adsorption capacities of CTS and CTS-MMT composite beads as obtained from Langmuir isotherm were found to be 38.46 and 43.48 mg/g, respectively. The adsorption kinetic agrees well with the pseudo second order model. The Ag+ desorption of CTS-MMT composite bead was 17.39% at pH=4. SEM/EDX images confirm that after adsorption the Ag+ were dispersed onto the composite bead surface. The adsorption and desorption experiment demonstrated that the CTS-MMT composite beads can be used as an effective adsorbents for removal of Ag+ from aqueous solution.ABM, ABC, ABPol2016-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392016000501114Materials Research v.19 n.5 2016reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/1980-5373-MR-2015-0738info:eu-repo/semantics/openAccessJintakosol,ThanutNitayaphat,Walaikorneng2016-09-27T00:00:00Zoai:scielo:S1516-14392016000501114Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2016-09-27T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false
dc.title.none.fl_str_mv Adsorption of Silver (I) From Aqueous Solution Using Chitosan/Montmorillonite Composite Beads
title Adsorption of Silver (I) From Aqueous Solution Using Chitosan/Montmorillonite Composite Beads
spellingShingle Adsorption of Silver (I) From Aqueous Solution Using Chitosan/Montmorillonite Composite Beads
Jintakosol,Thanut
Adsorption
Chitosan
Composite
Montmorillonite
Silver
title_short Adsorption of Silver (I) From Aqueous Solution Using Chitosan/Montmorillonite Composite Beads
title_full Adsorption of Silver (I) From Aqueous Solution Using Chitosan/Montmorillonite Composite Beads
title_fullStr Adsorption of Silver (I) From Aqueous Solution Using Chitosan/Montmorillonite Composite Beads
title_full_unstemmed Adsorption of Silver (I) From Aqueous Solution Using Chitosan/Montmorillonite Composite Beads
title_sort Adsorption of Silver (I) From Aqueous Solution Using Chitosan/Montmorillonite Composite Beads
author Jintakosol,Thanut
author_facet Jintakosol,Thanut
Nitayaphat,Walaikorn
author_role author
author2 Nitayaphat,Walaikorn
author2_role author
dc.contributor.author.fl_str_mv Jintakosol,Thanut
Nitayaphat,Walaikorn
dc.subject.por.fl_str_mv Adsorption
Chitosan
Composite
Montmorillonite
Silver
topic Adsorption
Chitosan
Composite
Montmorillonite
Silver
description Chitosan/montmorillonite (CTS-MMT) composite beads were used as adsorbents for the removal of silver ion (Ag+) from aqueous solution. Equilibrium adsorption was achieved within 150 min at 3% MMT of chitosan solution. The optimum pH value for Ag+ removal was found to be 6-7. The maximum adsorbent dosage for Ag+ removal was 5 g/L. Under above maximum conditions the Ag+ removal was 95.7%. The maximum adsorption capacities of CTS and CTS-MMT composite beads as obtained from Langmuir isotherm were found to be 38.46 and 43.48 mg/g, respectively. The adsorption kinetic agrees well with the pseudo second order model. The Ag+ desorption of CTS-MMT composite bead was 17.39% at pH=4. SEM/EDX images confirm that after adsorption the Ag+ were dispersed onto the composite bead surface. The adsorption and desorption experiment demonstrated that the CTS-MMT composite beads can be used as an effective adsorbents for removal of Ag+ from aqueous solution.
publishDate 2016
dc.date.none.fl_str_mv 2016-10-01
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=S1516-14392016000501114
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392016000501114
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1980-5373-MR-2015-0738
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.19 n.5 2016
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_ 1754212668394176512

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