Graphene oxide/alginate quasi-cryogels for removal of methylene blue

Basit Öğe Kaydı
dc.contributor.authorBalkız, Gizem
dc.contributor.authorPingo, Evridiki
dc.contributor.authorKahya, Nialy
dc.contributor.authorKaygusuz, Hakan
dc.contributor.authorBedia, Erim, F.
dc.date.accessioned2021-05-15T12:50:05Z
dc.date.available2021-05-15T12:50:05Z
dc.date.issued2018
dc.departmentMühendislik ve Doğa Bilimleri Fakültesi, Bilgisayar Mühendisliği Bölümüen_US
dc.description.abstractQuasi-cryogelation technique is a simple yet effective technique for improving the adsorptive efficiency of biopolymer-based adsorbent materials. In this work, a biopolymer-based adsorbent material, graphene oxide alginate quasi-cryogel beads are reported. Alginate biopolymer was crosslinked and frozen at ? 21 °C in order to obtain a gel with cryogel-like microstructure. Graphene oxide was included in the bead formulation in order to enhance the adsorptive characteristics. Beads were characterized using Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and swelling experiments. Removal of the model cationic dye, methylene blue, was studied by batch adsorption method. It is found that the adsorption follows the Freundlich isotherm model and pseudo-first order kinetics with reaching an adsorption capacity of 122.26 mg/g in 60 min. Results indicate that the physisorption might be due to theinteractions between graphene oxide and methylene blue, in addition to electrostatic interactions. Moreover, quasi-cryogelation technique significantly improved the dye removal properties. © 2018, Springer International Publishing AG, part of Springer Nature.en_US
dc.identifier.doi10.1007/s11270-018-3790-5
dc.identifier.issn0049-6979
dc.identifier.issue4en_US
dc.identifier.scopus2-s2.0-85044758674
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://doi.org/10.1007/s11270-018-3790-5
dc.identifier.urihttps://hdl.handle.net/20.500.12939/1181
dc.identifier.volume229en_US
dc.indekslendigikaynakScopus
dc.institutionauthorKaygusuz, Hakan
dc.language.isoen
dc.publisherSpringer International Publishingen_US
dc.relation.ispartofWater, Air, and Soil Pollution
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectAdsorptionen_US
dc.subjectAlginateen_US
dc.subjectCryogelen_US
dc.subjectDye Removalen_US
dc.subjectGraphene Oxideen_US
dc.subjectMethylene Blueen_US
dc.titleGraphene oxide/alginate quasi-cryogels for removal of methylene blue
dc.typeArticle

Dosyalar

Koleksiyon

Scopus İndeksli Yayınlar Koleksiyonu
Bilgisayar Mühendisliği Bölümü Koleksiyonu