Crosslinked polyethyleneimine-based structures in different morphologies as promising CO2 adsorption systems: A comprehensive study

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dc.authoridŞahiner, Nurettin / 0000-0003-0120-530X
dc.contributor.authorDemirci, Şahin
dc.contributor.authorInger, Erk
dc.contributor.authorBhethanabotla, Venkat
dc.contributor.authorŞahiner, Nurettin
dc.date.accessioned2025-01-27T20:17:18Z
dc.date.available2025-01-27T20:17:18Z
dc.date.issued2024
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractAlthough there are many studies on CO2 adsorption via PEI-modified carbon particles, metal-organic frameworks, zeolitic imidazolate frameworks, and silica-based porous structures, only a limited number of studies on solely cross-linked PEI-based structures. Here, the CO2 adsorption capacities of PEI-based microgels and cryogels were investigated. The effects of various parameters influencing the CO2 adsorption capacity of PEI-based structures, for example, crosslinker types, PEI types (branched [bPEI] or linear [lPEI]), adsorbent types (microgel or cryogel), chemical-modification including their complexes were examined. NaOH-treated glycerol diglycidyl ether (GDE) crosslinked lPEI microgels exhibited higher CO2 adsorption capacity among other microgels with 0.094 +/- 0.006 mmol CO2/g at 900 mm Hg, 25 degrees C with 2- and 7.5-fold increase upon pentaethylenehexamine (PEHA) modification and Ba(II) metal ion complexing, respectively. The CO2 adsorption capacity of bPEI and lPEI-based cryogels were compared and found that lPEI-GDE cryogels had higher adsorption capacity than bPEI-GDE cryogels with 0.188 +/- 0.01 mmol CO2/g at 900 mm Hg and 25 degrees C. The reuse studies revealed that NaOH-treated GDE crosslinked bPEI and lPEI microgels and cryogels showed promising potential, for example, after 10-times repeated use >50% CO2 adsorption capacity was retained. The results affirmed that PEI-based microgels and cryogels are encouraging materials for CO2 capture and reuse applications.
dc.description.sponsorshipScientific and Technological Research Council of Turkey [TUBITAK-B_IDEB-2219]
dc.description.sponsorshipThe Scientific and Technological Research Council of Turkey, Grant/Award Number: TUBITAK-B_IDEB-2219
dc.identifier.doi10.1002/app.56180
dc.identifier.issn0021-8995
dc.identifier.issn1097-4628
dc.identifier.issue44
dc.identifier.scopus2-s2.0-85201973881
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://doi.org/10.1002/app.56180
dc.identifier.urihttps://hdl.handle.net/20.500.12428/21542
dc.identifier.volume141
dc.identifier.wosWOS:001298094500001
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherWiley
dc.relation.ispartofJournal of Applied Polymer Science
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WoS_20250125
dc.subjectadsorption
dc.subjectapplications
dc.subjectcrosslinking
dc.subjectoil and gas
dc.titleCrosslinked polyethyleneimine-based structures in different morphologies as promising CO2 adsorption systems: A comprehensive study
dc.typeArticle

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