Ethylenediamine grafted poly(glycidylmethacrylate-co-methylmethacrylate) adsorbent for removal of chromate anions

Basit Öğe Kaydı
dc.contributor.authorBayramoğlu, Gülay
dc.contributor.authorArıca, M. Yakup
dc.date.accessioned2020-06-25T17:40:22Z
dc.date.available2020-06-25T17:40:22Z
dc.date.issued2005
dc.departmentKırıkkale Üniversitesi
dc.description.abstractThe removal of chromate anions (CrO42-) from aqueous solutions under different experimental conditions using cross-linked poly(glycidylmethacrylate-co-methylmethacrylate), poly(GMA-co-MMA), adsorbent was investigated in this study. The epoxy group containing adsorbent in the beads form was prepared from glycidylmethacrylate and methylmethacrylate via suspension polymerization. The epoxy groups of the poly (GMA-co-MMA) beads were used for grafting with ethylenediamine to prepare specific adsorbent (poly(GMA-co-MMA)-ED) for CrO42- anions removal from aqueous solutions. Adsorption equilibrium was achieved in approximately 120 min. The removal was favored at low pH, with a maximum adsorption at pH 2.0. Isotherm studies showed that CrO42- anions could be effectively removed by poly(GMA-co-MMA)-ED beads. The maximum adsorption capacities of the poly(GMA-co-MMA) and poly(GMA-co-MMA)-ED beads were 0.044 and 0.441 mmol CrO42- anions/g of dry adsorbents, respectively. The experimental data of the adsorption equilibrium from CrO42- anions aqueous solution correlated well with the Langmuir-Freundlich isotherm model. The experimental data were analyzed using the first- and the second-order kinetic models. The rate constants of adsorption for both kinetics models have been calculated. The second-order model provides the best correlation of the data. Desorption experiments show that the process of adsorption of CrO42- anions was reversible and the adsorbent was easily regenerated with 0.1 M NaOH up to 96% recovery. (C) 2005 Elsevier B.V. All rights reserved.en_US
dc.identifier.citationclosedAccessen_US
dc.identifier.doi10.1016/j.seppur.2005.03.009
dc.identifier.endpage199en_US
dc.identifier.issn1383-5866
dc.identifier.issn1873-3794
dc.identifier.issue3en_US
dc.identifier.scopus2-s2.0-26944467923
dc.identifier.scopusqualityQ1
dc.identifier.startpage192en_US
dc.identifier.urihttps://doi.org/10.1016/j.seppur.2005.03.009
dc.identifier.urihttps://hdl.handle.net/20.500.12587/3411
dc.identifier.volume45en_US
dc.identifier.wosWOS:000233070400004
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Science Bven_US
dc.relation.ispartofSeparation And Purification Technology
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectbeadsen_US
dc.subjectadsorptionen_US
dc.subjectheavy metal removalen_US
dc.subjectCrO42- anionsen_US
dc.subjectkinetic characterizationen_US
dc.titleEthylenediamine grafted poly(glycidylmethacrylate-co-methylmethacrylate) adsorbent for removal of chromate anionsen_US
dc.typeArticle

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