Removal of anionic dyes from aqueous media by using a novel high positively charged hydrogel with high capacity

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dc.authoridOzay, Hava/0000-0002-4184-7801
dc.contributor.authorKivanc, Mehmet Riza
dc.contributor.authorÖzay, Özgür
dc.contributor.authorOzay, Hava
dc.contributor.authorIlgin, Pinar
dc.date.accessioned2025-01-27T20:45:31Z
dc.date.available2025-01-27T20:45:31Z
dc.date.issued2022
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractPoly((methacryloylamino)propyl trimethylammonium chloride-co-vinylimidazole) (p(MAPTAC-co-VI)) hydrogels were synthesized through free radical polymerization of 3-(methacryloylamino)propyl trimethylammonium chloride (MAPTAC) and 1-vinylimidazole (VI) in aqueous solutions with ammonium persulfate (APS) used as initiator and N,N '-methylenebis(acrylamide) (MBA) as the crosslinking agent. By modifying with HCl, the positive charge density on the hydrogel network structure was increased and quaternized hydrogels (p(MAPTAC-co-VI)-q) were obtained. Traditional swelling and spectrophotometric characterization techniques were used to gain a better understanding of the performance of cationic hydrogels for the removal of anionic dyes. FTIR, SEM, and EDX confirmed the structure of the hydrogel before and after the adsorption process. Later, dye adsorption performance of these p(MAPTAC-co-VI)-q hydrogels was investigated under different adsorption conditions, including initial concentration, temperature, pH values of dye solutions, and adsorption contact time, adsorbent dosage and in real water samples. Various isotherm and kinetic models of dye adsorption by the hydrogel were also studied and the experimental adsorption followed a pseudo-second order model and fitted the Langmuir isotherm well. Thanks to the effective use of existing adsorption sites, high adsorption capacity was achieved for eriochrome black T (EBT) and methyl orange (MO) dyes. The values of q(max) are as follows: 1818.2 mg/g and 1449.3 mg/g, respectively. Thermodynamic parameters indicate that the process was spontaneous and endothermic. P(MAPTAC-co-VI)-q hydrogels can be used as a potential adsorbent for removal of anionic dye molecules, one of the industrial pollutants, from wastewater.
dc.identifier.doi10.1080/01932691.2020.1847658
dc.identifier.endpage1015
dc.identifier.issn0193-2691
dc.identifier.issn1532-2351
dc.identifier.issue7
dc.identifier.scopus2-s2.0-85096619964
dc.identifier.scopusqualityQ2
dc.identifier.startpage1000
dc.identifier.urihttps://doi.org/10.1080/01932691.2020.1847658
dc.identifier.urihttps://hdl.handle.net/20.500.12428/24614
dc.identifier.volume43
dc.identifier.wosWOS:000591766000001
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherTaylor & Francis Inc
dc.relation.ispartofJournal of Dispersion Science and Technology
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectVinyl imidazole
dc.subjectdye removal
dc.subjecteriochrome black T
dc.subjectmethyl orange
dc.subjecthydrogel
dc.titleRemoval of anionic dyes from aqueous media by using a novel high positively charged hydrogel with high capacity
dc.typeArticle

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