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Processing of poly(ionic liquid)-ionic liquid membranes using femtosecond (fs) laser radiation: Effect on CO2 separation performance

2022-02-15Journal article Restricted access
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dc.contributor.authorGouveia, Andreia S.L.
dc.contributor.authorOliveira, Vitor
dc.contributor.authorFerraria, Ana Maria
dc.contributor.authorRego, Ana
dc.contributor.authorFerreira, Maria João
dc.contributor.authorTomé, Liliana C.
dc.contributor.authorAlmeida, Amélia
dc.contributor.authorMarrucho, I. M.
dc.date.accessioned2021-11-09T10:06:37Z
dc.date.available2021-11-09T10:06:37Z
dc.date.issued2022-02-15
dc.description.abstractFemtosecond (fs) laser micromachining on polymeric materials is a single-step, and contactless manufacturing technology. Knowing the potential of poly(ionic liquid)s (PILs) and their derived composite materials incorporating ionic liquids (PIL-IL) to design membranes with improved CO2 separation, we here explore for the first time the creation of microchannels on the surface of PIL-IL materials by laser ablation using femtosecond laser radiation. PIL-IL membranes composed of pyrrolidinium-based PILs containing the [NTf2](-) and [C(CN)(3)](-) anions and different amounts of their corresponding ILs (40 and 60 wt%) were prepared and micromachined using fs laser pulses varying the pulse repetition rate, scanning speed, and pulse energy. The morphology of the fs laser modified PIL-IL samples was investigated through scanning electron microscopy (SEM), while the influence of the fs laser processing on the membranes structure was analyzed by solid-state nuclear magnetic resonance (ssNMR), Fourier-transform infrared (FT-IR) spectroscopy, and X-ray photoelectron spectroscopy (XPS). The CO2/N-2 and CO2/H-2 separation performances of the irradiated membranes were also evaluated and compared to those of the non-irradiated. Depending on the parameters used, fs laser processing was successful in modifying the surface of PIL-IL membranes through the formation of microchannels around 55-60 mu m deep. Significant improvements in CO2, N-2 and H-2 permeabilities were achieved for the irradiated PIL-IL membranes, maintaining their CO2/N-2 and CO2/H-2 permselectivities.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationGOUVEIA, Andreia S. L.; [et al] – Processing of poly(ionic liquid)-ionic liquid membranes using femtosecond (fs) laser radiation: Effect on CO2 separation performance. Journal of Membrane Science. ISSN 0376-7388. Vol. 642 (2022), pp. 1-13pt_PT
dc.identifier.doi10.1016/j.memsci.2021.119903pt_PT
dc.identifier.eissn1873-3123
dc.identifier.issn0376-7388
dc.identifier.urihttp://hdl.handle.net/10400.21/13963
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationSFRH/BD/ 116600/2016 - FCTpt_PT
dc.relationUIDB/00100/2020 - FCT/MCTESpt_PT
dc.relationPTDC/QUI-QFI/29527/2017 - FCT/MCTESpt_PT
dc.relationUIDB/04565/2020 - FCT/MCTESpt_PT
dc.relationUIDB/ 04540/2020 - FCT/MCTESpt_PT
dc.relationUIDB/50006/2020 - FCT/MCTESpt_PT
dc.relationUIDP/50006/2020 - FCT/MCTESpt_PT
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S0376738821008462?via%3Dihubpt_PT
dc.subjectPoly(ionic liquid)spt_PT
dc.subjectIonic liquidspt_PT
dc.subjectFemtosecond laser processingpt_PT
dc.subjectMicrochannelspt_PT
dc.subjectCO2 separationpt_PT
dc.titleProcessing of poly(ionic liquid)-ionic liquid membranes using femtosecond (fs) laser radiation: Effect on CO2 separation performancept_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage13pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleJournal of Membrane Sciencept_PT
oaire.citation.volume642pt_PT
person.familyNameGouveia
person.familyNameOliveira
person.familyNameFerraria
person.familyNameRego
person.familyNameTomé
person.familyNameAlmeida
person.familyNameMarrucho
person.givenNameAndreia S.L.
person.givenNameVitor
person.givenNameAna Maria
person.givenNameAna
person.givenNameLiliana C.
person.givenNameAmelia
person.givenNameIsabel
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person.identifier.orcid0000-0002-3131-4219
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person.identifier.ridD-7699-2015
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rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
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