Removal of methylene blue, methyl violet, rhodamine B, alizarin red, and bromocresol green dyes from aqueous solutions on activated cotton stalks

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dc.authoridSAKA, Cafer/0000-0003-2534-5921
dc.authoridSAHIN, Omer/0000-0003-4575-3762
dc.contributor.authorOzdemir, Mustafa
dc.contributor.authorDurmus, Ozkan
dc.contributor.authorSahin, Omer
dc.contributor.authorSaka, Cafer
dc.date.accessioned2024-12-24T19:28:26Z
dc.date.available2024-12-24T19:28:26Z
dc.date.issued2016
dc.departmentSiirt Üniversitesi
dc.description.abstractThe adsorption behavior of methylene blue (MB), methyl violet (MV), rhodamine B (RB), alizarin red (AR), and bromocresol green (BG) dyes from aqueous solution on cotton stalks-activated carbon (CSAC) was investigated. The experimental procedure used activated carbon produced by chemical activation and physical activation using 50% ZnCl2 at 850 degrees C. For this purpose, batch tests were carried out as a function of solution pH value, contact time, dye concentration, agitation rate, temperature, and particle diameter. The experimental findings showed that the maximum adsorption capacities of adsorbent for BG and AR dyes were at pH 5. As comparison, the maximum adsorption capacity of adsorbent for MB dye was at an initial pH 12. In addition, the maximum adsorption capacities of adsorbent for RB and MV dyes were at pH 2 and 7, respectively. The maximum adsorption capacities of adsorbent for RB, MV, MB, AR, and BG were found to be 133.33, 135.14, 153.85, 196.08, and 222.22 mg/g, respectively. Kinetic studies of five dyes followed the pseudo-second-order model. Freundlich isotherm described the equilibrium data of BG, AR, and RB dyes on CSAC better than Langmuir isotherm, but Langmuir isotherm showed a better fit to the equilibrium data of MB and MV dyes. The R-L results show that the adsorption of five dyes onto CSAC is favorable.
dc.identifier.doi10.1080/19443994.2015.1085916
dc.identifier.endpage18048
dc.identifier.issn1944-3994
dc.identifier.issn1944-3986
dc.identifier.issue38
dc.identifier.scopus2-s2.0-84941236247
dc.identifier.scopusqualityQ3
dc.identifier.startpage18038
dc.identifier.urihttps://doi.org/10.1080/19443994.2015.1085916
dc.identifier.urihttps://hdl.handle.net/20.500.12604/7051
dc.identifier.volume57
dc.identifier.wosWOS:000378619500039
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherDesalination Publ
dc.relation.ispartofDesalination and Water Treatment
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241222
dc.subjectAdsorption
dc.subjectDyes
dc.subjectActivated cotton stalks
dc.subjectAdsorption isotherm
dc.subjectKinetics
dc.titleRemoval of methylene blue, methyl violet, rhodamine B, alizarin red, and bromocresol green dyes from aqueous solutions on activated cotton stalks
dc.typeArticle

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