Eco-friendly chitosan/?-carrageenan membranes reinforced with activated bentonite for adsorption of methylene blue

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dc.authoridAteş, Burhan/0000-0001-6080-229X
dc.authoridUlu, Ahmet/0000-0002-4447-6233;
dc.authorwosidAteş, Burhan/AAA-3730-2021
dc.authorwosidUlu, Ahmet/L-5180-2016
dc.authorwosidALPASLAN, Musa/KCK-6865-2024
dc.contributor.authorUlu, Ahmet
dc.contributor.authorAlpaslan, Musa
dc.contributor.authorGultek, Ahmet
dc.contributor.authorAtes, Burhan
dc.date.accessioned2024-08-04T20:50:55Z
dc.date.available2024-08-04T20:50:55Z
dc.date.issued2022
dc.departmentİnönü Üniversitesien_US
dc.description.abstractIn this work, the chitosan/kappa-carrageenan/acid-activated bentonite composite membranes were prepared through blending method and used to adsorb methylene blue dye. The prepared composite membranes were characterized with several spectroscopic and microscopic techniques. The results revealed that the bentonite was homogeneously distributed in the membrane matrix, which means extensive porous structure was formed on the surface. The effects of initial concentration of methylene blue, adsorbent dosage, pH value, contact time, ionic strength, and temperature on methylene blue removal percentage the prepared membrane was investigated in detail. Adsorption kinetics and equilibrium adsorption isotherm fitted pseudo-second-order kinetic model and Freundlich isotherm model well, respectively. The thermodynamics analysis suggested that the adsorption process of methylene blue onto the chitosan/kappa-carrageenan/acid-activated bentonite composite membrane was spontaneous and endothermic. The highest removal rate (98%) was achieved under the following conditions: adsorbent dose, 0.05 g; solution pH, 4; temperature, 50 degrees C; and time, 200 min. The maximum adsorption capacity for methylene blue was 18.80 mg/g at 50 degrees C. Moreover, the prepared composite membrane demonstrated the high reusability and adsorption rate (similar to 77%) without significant loss after sixth adsorption-desorption cycles. Considering of the above results, the prepared composite membrane can be a promising adsorbent candidate having low cost and high recyclability to remove methylene blue.en_US
dc.identifier.doi10.1016/j.matchemphys.2021.125611
dc.identifier.issn0254-0584
dc.identifier.issn1879-3312
dc.identifier.scopus2-s2.0-85121290053en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1016/j.matchemphys.2021.125611
dc.identifier.urihttps://hdl.handle.net/11616/100366
dc.identifier.volume278en_US
dc.identifier.wosWOS:000764095300003en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevier Science Saen_US
dc.relation.ispartofMaterials Chemistry and Physicsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectChitosanen_US
dc.subjectkappa-Carrageenanen_US
dc.subjectBentoniteen_US
dc.subjectAdsorptionen_US
dc.subjectMethylene blueen_US
dc.subjectAdsorption isothermen_US
dc.subjectKinetic studyen_US
dc.titleEco-friendly chitosan/?-carrageenan membranes reinforced with activated bentonite for adsorption of methylene blueen_US
dc.typeArticleen_US

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