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Adsorption of Fluoxetine and Venlafaxine onto the Marine Seaweed Bifurcaria bifurcata

2019-05Journal article Open access
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dc.contributor.authorSilva, Andreia
dc.contributor.authorStawiński, Wojciech
dc.contributor.authorRomacho, Juan
dc.contributor.authorSantos, Lúcia H.M.L.M.
dc.contributor.authorFigueiredo, Sónia
dc.contributor.authorFreitas, Olga
dc.contributor.authorDelerue-Matos, Cristina
dc.date.accessioned2020-07-10T13:50:01Z
dc.date.available2020-07-10T13:50:01Z
dc.date.issued2019-05
dc.description.abstractMarine 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.pt_PT
dc.description.sponsorshipAcknowledgments 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).pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1089/ees.2018.0332pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.22/16096
dc.language.isoengpt_PT
dc.publisherMary Ann Liebert, Inc., publisherspt_PT
dc.relation.publisherversionhttps://www.liebertpub.com/doi/10.1089/ees.2018.0332pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/pt_PT
dc.subjectAntidepressantspt_PT
dc.subjectBi-component studiespt_PT
dc.subjectBifurcaria bifurcatapt_PT
dc.subjectBiosorptionpt_PT
dc.subjectMacroalgapt_PT
dc.subjectPharmaceuticalspt_PT
dc.titleAdsorption of Fluoxetine and Venlafaxine onto the Marine Seaweed Bifurcaria bifurcatapt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FQUI%2F50006%2F2013/PT
oaire.citation.endPage582pt_PT
oaire.citation.issue5pt_PT
oaire.citation.startPage573pt_PT
oaire.citation.titleEnvironmental Engineering Sciencept_PT
oaire.citation.volume36pt_PT
oaire.fundingStream5876
person.familyNameSantos
person.familyNameFigueiredo
person.familyNameFreitas
person.familyNameDelerue-Matos
person.givenNameLúcia
person.givenNameSónia
person.givenNameOlga
person.givenNameCristina
person.identifier554739
person.identifier1104854
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person.identifier.ciencia-id6915-A6F2-F8A1
person.identifier.ciencia-id9A1A-43FB-5C27
person.identifier.orcid0000-0002-7013-8852
person.identifier.orcid0000-0001-8548-2528
person.identifier.orcid0000-0002-2499-6143
person.identifier.orcid0000-0002-3924-776X
person.identifier.ridK-6784-2013
person.identifier.ridD-8292-2013
person.identifier.ridD-8307-2013
person.identifier.ridD-4990-2013
person.identifier.scopus-author-id55947204900
person.identifier.scopus-author-id7004125737
person.identifier.scopus-author-id18634256400
person.identifier.scopus-author-id6603741848
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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