Adsorption of Fluoxetine and Venlafaxine onto the Marine Seaweed Bifurcaria bifurcata

Detalhes bibliográficos
Autor(a) principal: Silva, Andreia
Data de Publicação: 2019
Outros Autores: Stawiński, Wojciech, Romacho, Juan, Santos, Lúcia H.M.L.M., Figueiredo, Sónia, Freitas, Olga, Delerue-Matos, Cristina
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.22/16096
Resumo: Marine macroalga Bifurcaria bifurcata was investigated as sorbent for two environmental emerging pollutants, the pharmaceuticals venlafaxine (VLF) and fluoxetine (FLX), from aqueous solutions, both in mono and bicomponent batch systems. The alga was characterized by means of IR spectroscopy, allowing to identify the most important groups for biosorption, carboxylic, sulfonic and hidroxile. The point of zero charge was determined, being 6.4. Adsorption of FLX follows a pseudo first order kinetics and kinetic constants are higher for FLX than for VLF. Its adsorption better represented by the pseudo second order model. For both pharmaceuticals, the equilibrium was reached within *100 min. Adsorption studies reveal that the process was more efficient at lower pH range and followed the Langmuir–Freundlich’s model for VLF and Langmuir’s model for FLX. Maximum adsorption capacities reached a level of 12 – 3 and 22 – 4 lmol/g for VLF and FLX, respectively, in the mono-component system. The difference was attributed to the presence of various functional groups of varying polarity within the adsorbates’ molecules that affected their interactions with the adsorbent surface. The Langmuir–Freundlich’s extended model was applied to the adsorption data of the bicomponent system and no changes in the maximum adsorption capacities were found (14 – 2 and 20 – 3 lmol/g for VLF and FLX, respectively), there is no evidence of competition between the adsorbates.
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spelling Adsorption of Fluoxetine and Venlafaxine onto the Marine Seaweed Bifurcaria bifurcataAntidepressantsBi-component studiesBifurcaria bifurcataBiosorptionMacroalgaPharmaceuticalsMarine macroalga Bifurcaria bifurcata was investigated as sorbent for two environmental emerging pollutants, the pharmaceuticals venlafaxine (VLF) and fluoxetine (FLX), from aqueous solutions, both in mono and bicomponent batch systems. The alga was characterized by means of IR spectroscopy, allowing to identify the most important groups for biosorption, carboxylic, sulfonic and hidroxile. The point of zero charge was determined, being 6.4. Adsorption of FLX follows a pseudo first order kinetics and kinetic constants are higher for FLX than for VLF. Its adsorption better represented by the pseudo second order model. For both pharmaceuticals, the equilibrium was reached within *100 min. Adsorption studies reveal that the process was more efficient at lower pH range and followed the Langmuir–Freundlich’s model for VLF and Langmuir’s model for FLX. Maximum adsorption capacities reached a level of 12 – 3 and 22 – 4 lmol/g for VLF and FLX, respectively, in the mono-component system. The difference was attributed to the presence of various functional groups of varying polarity within the adsorbates’ molecules that affected their interactions with the adsorbent surface. The Langmuir–Freundlich’s extended model was applied to the adsorption data of the bicomponent system and no changes in the maximum adsorption capacities were found (14 – 2 and 20 – 3 lmol/g for VLF and FLX, respectively), there is no evidence of competition between the adsorbates.Acknowledgments are due to Fundac¸a˜o para a Cieˆncia e a Tecnologia (FCT), FEDER under Programme PT2020 (Project UID/QUI/50006/2013—POCI/01/0145/FEDER/ 007265) and Programme FCT–UT Austin, Emerging Technologies (Project UTAP-ICDT/CTM-NAN/0025/2014) for the financial funding. The authors would like to thank the EU and FCT/UEFISCDI/FORMAS for funding, in the frame of the collaborative international consortium REWATER financed under the ERA-NET Cofund WaterWorks2015 Call. This ERA-NET is an integral part of the 2016 Joint Activities developed by the Water Challenges for a Changing World Joint Programme Initiative (Water JPI).W.S. also thanks FCT/ MEC for his grant (Laborato´rio Associado para Quı´mica Verde–Tecnologia e Processos Limpos–UID/QUI/50006, POCI-01-0145-FEDER-007265).Mary Ann Liebert, Inc., publishersRepositório Científico do Instituto Politécnico do PortoSilva, AndreiaStawiński, WojciechRomacho, JuanSantos, Lúcia H.M.L.M.Figueiredo, SóniaFreitas, OlgaDelerue-Matos, Cristina2020-07-10T13:50:01Z2019-052019-05-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.22/16096eng10.1089/ees.2018.0332info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-03-13T13:02:02Zoai:recipp.ipp.pt:10400.22/16096Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T17:35:44.927960Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Adsorption of Fluoxetine and Venlafaxine onto the Marine Seaweed Bifurcaria bifurcata
title Adsorption of Fluoxetine and Venlafaxine onto the Marine Seaweed Bifurcaria bifurcata
spellingShingle Adsorption of Fluoxetine and Venlafaxine onto the Marine Seaweed Bifurcaria bifurcata
Silva, Andreia
Antidepressants
Bi-component studies
Bifurcaria bifurcata
Biosorption
Macroalga
Pharmaceuticals
title_short Adsorption of Fluoxetine and Venlafaxine onto the Marine Seaweed Bifurcaria bifurcata
title_full Adsorption of Fluoxetine and Venlafaxine onto the Marine Seaweed Bifurcaria bifurcata
title_fullStr Adsorption of Fluoxetine and Venlafaxine onto the Marine Seaweed Bifurcaria bifurcata
title_full_unstemmed Adsorption of Fluoxetine and Venlafaxine onto the Marine Seaweed Bifurcaria bifurcata
title_sort Adsorption of Fluoxetine and Venlafaxine onto the Marine Seaweed Bifurcaria bifurcata
author Silva, Andreia
author_facet Silva, Andreia
Stawiński, Wojciech
Romacho, Juan
Santos, Lúcia H.M.L.M.
Figueiredo, Sónia
Freitas, Olga
Delerue-Matos, Cristina
author_role author
author2 Stawiński, Wojciech
Romacho, Juan
Santos, Lúcia H.M.L.M.
Figueiredo, Sónia
Freitas, Olga
Delerue-Matos, Cristina
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Repositório Científico do Instituto Politécnico do Porto
dc.contributor.author.fl_str_mv Silva, Andreia
Stawiński, Wojciech
Romacho, Juan
Santos, Lúcia H.M.L.M.
Figueiredo, Sónia
Freitas, Olga
Delerue-Matos, Cristina
dc.subject.por.fl_str_mv Antidepressants
Bi-component studies
Bifurcaria bifurcata
Biosorption
Macroalga
Pharmaceuticals
topic Antidepressants
Bi-component studies
Bifurcaria bifurcata
Biosorption
Macroalga
Pharmaceuticals
description Marine macroalga Bifurcaria bifurcata was investigated as sorbent for two environmental emerging pollutants, the pharmaceuticals venlafaxine (VLF) and fluoxetine (FLX), from aqueous solutions, both in mono and bicomponent batch systems. The alga was characterized by means of IR spectroscopy, allowing to identify the most important groups for biosorption, carboxylic, sulfonic and hidroxile. The point of zero charge was determined, being 6.4. Adsorption of FLX follows a pseudo first order kinetics and kinetic constants are higher for FLX than for VLF. Its adsorption better represented by the pseudo second order model. For both pharmaceuticals, the equilibrium was reached within *100 min. Adsorption studies reveal that the process was more efficient at lower pH range and followed the Langmuir–Freundlich’s model for VLF and Langmuir’s model for FLX. Maximum adsorption capacities reached a level of 12 – 3 and 22 – 4 lmol/g for VLF and FLX, respectively, in the mono-component system. The difference was attributed to the presence of various functional groups of varying polarity within the adsorbates’ molecules that affected their interactions with the adsorbent surface. The Langmuir–Freundlich’s extended model was applied to the adsorption data of the bicomponent system and no changes in the maximum adsorption capacities were found (14 – 2 and 20 – 3 lmol/g for VLF and FLX, respectively), there is no evidence of competition between the adsorbates.
publishDate 2019
dc.date.none.fl_str_mv 2019-05
2019-05-01T00:00:00Z
2020-07-10T13:50:01Z
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://hdl.handle.net/10400.22/16096
url http://hdl.handle.net/10400.22/16096
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1089/ees.2018.0332
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Mary Ann Liebert, Inc., publishers
publisher.none.fl_str_mv Mary Ann Liebert, Inc., publishers
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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