Preparation of Dextran Cryogels and Some of Their Applications

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dc.authoridŞahiner, Nurettin / 0000-0003-0120-530X
dc.authoridAri, Betül / 0000-0003-3557-3055
dc.contributor.authorAri, Betül
dc.contributor.authorŞahiner, Nurettin
dc.date.accessioned2025-01-27T19:57:45Z
dc.date.available2025-01-27T19:57:45Z
dc.date.issued2019
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractIn this study, dextran (DEX) cryogels were prepared using 50% divinyl sulfone (DVS)crosslinker based on the repeating unit of DEX, under cryogenic conditions viacryogellation technique. It was shown that DEX cryogels can be used as column fillersto remove toxic substances such as organic dye, methylene blue (MB), pesticide, andparaquat (PQ) which are harmful to the environment and human health. The maximumabsorption capacity of 15 mg DEX cryogels was determined as 10.69±0.14 mg/g using5 mL of 100 ppm MB dye in about seven minutes, and as 2.87±0.33 mg/g from 5 mL of40 ppm PQ pesticide in about ten minutes. The reusability of DEX cryogel for MB wasalso examined. In the consecutive use of DEX cryogel weighing ~30 mg, initiallycryogel absorbed 6.43±0.15 mg MB/g cryogel from 20 ppm 30 mL MB dye, but thisvalue decreased to 4.71±0.48 mg MB/g cryogel after the fifth use. The same cryogelreleased the same amount of MB dye after the first use of 3.78±0.33 mg MB/g cryogel,but after the fifth use the release amount decreased to 0.92±0.38 mg MB/g cryogel upontreatment with 1 M 30 mL HCl solution. The adsorption kinetics of DEX cryogel forMB were also examined and the Langmuir isotherm model with a correlation coefficientof 0.9983 and the KL value of 0.36, representing the best fit amongst the other wellknown models such as the Freundlich isotherm, Temkin, Elovich and DubininRadushkevich.
dc.identifier.endpage200
dc.identifier.issn2459-1580
dc.identifier.issue2
dc.identifier.startpage187
dc.identifier.trdizinid380577
dc.identifier.urihttps://search.trdizin.gov.tr/tr/yayin/detay/380577
dc.identifier.urihttps://hdl.handle.net/20.500.12428/19717
dc.identifier.volume5
dc.indekslendigikaynakTR-Dizin
dc.language.isoen
dc.relation.ispartofÇanakkale Onsekiz Mart Üniversitesi Fen Bilimleri Enstitüsü Dergisi
dc.relation.publicationcategoryMakale - Ulusal Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_TRD_20250125
dc.subjectKimya
dc.subjectUygulamalı
dc.titlePreparation of Dextran Cryogels and Some of Their Applications
dc.typeArticle

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