Please use this identifier to cite or link to this item: https://hdl.handle.net/10316/90779
DC FieldValueLanguage
dc.contributor.authorFilho, Cesar M C-
dc.contributor.authorBueno, Pedro V A-
dc.contributor.authorMatsushita, Alan F. Y.-
dc.contributor.authorVilsinski, Bruno H.-
dc.contributor.authorRubira, Adley F.-
dc.contributor.authorMuniz, Edvani C.-
dc.contributor.authorMurtinho, Dina Maria Bairrada-
dc.contributor.authorValente, Artur José Monteiro-
dc.date.accessioned2020-09-04T10:35:10Z-
dc.date.available2020-09-04T10:35:10Z-
dc.date.issued2020-04-10-
dc.identifier.issn2073-4360pt
dc.identifier.urihttps://hdl.handle.net/10316/90779-
dc.description.abstractAromatic hydrocarbons are extensive environmental pollutants occurring in both water and air media, and their removal is a priority effort for a healthy environment. The use of adsorbents is among the several strategies used for the remediation of these compounds. In this paper, we aim the synthesis of an amphiphilic hydrogel with the potential for the simultaneous sorption of a set of monocyclic and polycyclic aromatic hydrocarbons associated with toxicity effects in humans. Thus, we start by the synthesis of a copolymer-based in chitosan and β-cyclodextrin previously functionalized with the maleic anhydride. The presence of β-cyclodextrin will confer the ability to interact with hydrophobic compounds. The resulting material is posteriorly incorporated in a cryogel of poly(vinyl alcohol) matrix. We aim to improve the amphiphilic ability of the hydrogel matrix. The obtained hydrogel was characterized by swelling water kinetics, thermogravimetric analysis, rheological measurements, and scanning electron microscopy. The sorption of aromatic hydrocarbons onto the gel is characterized by pseudo-first-order kinetics and Henry isotherm, suggesting a physisorption mechanism. The results show that the presence of maleic anhydride-β-cyclodextrin and chitosan into hydrogels leads to an increase in the removal efficiency of the aromatic compounds. Additionally, the capacity of this hydrogel for removing these pollutants from a fossil fuel sample has also been tested.pt
dc.description.sponsorshipRede Nacional de Ressonância Magnética Nuclear (RNRMN)pt
dc.language.isoengpt
dc.publisherMDPIpt
dc.relationUID/QUI/00313/2020pt
dc.relationERA-NETWaterJPI/0006/2016pt
dc.relationREEQ/481/QUI/2006,pt
dc.relationRECI/QEQ-QFI/0168/2012pt
dc.relationCENTRO-07-CT62-FEDER-002012pt
dc.rightsopenAccesspt
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt
dc.subjectChitosanpt
dc.subjectMaleic anhydridept
dc.subjectMonoaromatic hydrocarbonspt
dc.subjectPoly(vinyl alcohol)pt
dc.subjectPolycyclic aromatic hydrocarbonspt
dc.subjectβ-cyclodextrinpt
dc.titleUncommon Sorption Mechanism of Aromatic Compounds onto Poly(Vinyl Alcohol)/Chitosan/Maleic Anhydride-β-Cyclodextrin Hydrogelspt
dc.typearticle-
degois.publication.firstPage877pt
degois.publication.issue4pt
degois.publication.titlePolymerspt
dc.relation.publisherversionhttps://www.mdpi.com/2073-4360/12/4/877pt
dc.peerreviewedyespt
dc.identifier.doi10.3390/polym12040877pt
degois.publication.volume12pt
dc.date.embargo2020-04-10*
uc.date.periodoEmbargo0pt
item.openairetypearticle-
item.languageiso639-1en-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.cerifentitytypePublications-
item.grantfulltextopen-
item.fulltextCom Texto completo-
crisitem.author.researchunitCQC - Coimbra Chemistry Centre-
crisitem.author.researchunitCQC - Coimbra Chemistry Centre-
crisitem.author.researchunitCQC - Coimbra Chemistry Centre-
crisitem.author.researchunitCQC - Coimbra Chemistry Centre-
crisitem.author.parentresearchunitFaculty of Sciences and Technology-
crisitem.author.parentresearchunitFaculty of Sciences and Technology-
crisitem.author.parentresearchunitFaculty of Sciences and Technology-
crisitem.author.parentresearchunitFaculty of Sciences and Technology-
crisitem.author.orcid0000-0003-0981-3756-
crisitem.author.orcid0000-0002-9050-5760-
crisitem.author.orcid0000-0002-1391-9855-
crisitem.author.orcid0000-0002-4612-7686-
Appears in Collections:I&D CQC - Artigos em Revistas Internacionais
Files in This Item:
File Description SizeFormat
Filho2020Polym.pdf3.34 MBAdobe PDFView/Open
Show simple item record

WEB OF SCIENCETM
Citations 20

7
checked on Mar 2, 2024

Page view(s)

151
checked on Mar 26, 2024

Download(s)

106
checked on Mar 26, 2024

Google ScholarTM

Check

Altmetric

Altmetric


This item is licensed under a Creative Commons License Creative Commons