Polyvinyl pyrrolidone-chitosan blend membrane for pervaporation separation of trimethyl boratemethanol mixture

Basit Öğe Kaydı
dc.contributor.authorOzekmekci, Mehtap
dc.contributor.authorCopur, Mehmet
dc.contributor.authorUnlu, Derya
dc.date.accessioned2026-02-08T15:15:06Z
dc.date.available2026-02-08T15:15:06Z
dc.date.issued2025
dc.departmentBursa Teknik Üniversitesi
dc.description.abstractTrimethyl borate (TMB) is an essential chemical for applications ranging from organic synthesis to borohydride production and requires efficient separation from methanol for optimal utilization. This study investigates the pervaporation performance of blend membranes composed of different ratios of chitosan (CS) and polyvinyl pyrrolidone (PVP) to improve the separation of TMB/methanol mixtures through pervaporation. The structural morphology, thermal properties, and crystalline nature of these membranes were comprehensively characterized using Fourier transform infrared spectroscopy, thermogravimetric analysis, contact angle measurements, scanning electron microscopy, and X-ray diffraction analysis. Pervaporation experiments were conducted by varying feed compositions, operating temperatures, and PVP ratios. The results demonstrated that increasing PVP content has a significant effect on permeation flux. The best conditions were obtained at 45 degrees C of operation temperature and 75% (by wt) TMB-25% (by wt) methanol mixture by utilizing a PVP-CS-2 membrane, recording flux value of 335.44 g/m2 h. Additionally, PVP-CS-1 and PVP-CS-2 blend membranes were subjected to a crosslinking process to evaluate their separation performance. The crosslinked PVP-CS-1 membrane showed a good performance, with a selectivity value of 146.37. Additionally, the crosslinked PVP-CS-2 membrane exhibited remarkable stability 5 run experiments, indicating strong chemical and mechanical endurance.
dc.description.sponsorshipScientific Research Project of Bursa Technical University (BAP) [:172D30]
dc.description.sponsorshipThis work was supported by the Scientific Research Project of Bursa Technical University (BAP), Grant No:172D30.
dc.identifier.doi10.1007/s13726-025-01489-9
dc.identifier.endpage1980
dc.identifier.issn1026-1265
dc.identifier.issn1735-5265
dc.identifier.issue11
dc.identifier.scopus2-s2.0-105002640831
dc.identifier.scopusqualityQ2
dc.identifier.startpage1967
dc.identifier.urihttps://doi.org/10.1007/s13726-025-01489-9
dc.identifier.urihttps://hdl.handle.net/20.500.12885/5583
dc.identifier.volume34
dc.identifier.wosWOS:001468314300001
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherSpringer
dc.relation.ispartofIranian Polymer Journal
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzWOS_KA_20260207
dc.subjectTrimethyl borate
dc.subjectAzeotrope
dc.subjectPervaporation
dc.subjectChitosan
dc.subjectPolyvinyl pyrrolidone
dc.titlePolyvinyl pyrrolidone-chitosan blend membrane for pervaporation separation of trimethyl boratemethanol mixture
dc.typeArticle

Dosyalar

Koleksiyon

WoS İndeksli Yayınlar Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu