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Application of kinetic models to the sorption of disperse dyes onto alunite

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dc.contributor.authors Ozacar, M; Sengil, IA;
dc.date.accessioned 2020-02-26T08:57:29Z
dc.date.available 2020-02-26T08:57:29Z
dc.date.issued 2004
dc.identifier.citation Ozacar, M; Sengil, IA; (2004). Application of kinetic models to the sorption of disperse dyes onto alunite. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 242, 113-105
dc.identifier.issn 0927-7757
dc.identifier.uri https://doi.org/10.1016/j.colsurfa.2004.03.029
dc.identifier.uri https://hdl.handle.net/20.500.12619/50272
dc.description.abstract The sorption of three disperse dyes, namely, Disperse Blue 56 (DB56), Disperse Red 74 (DR74) and Disperse Yellow 119 (DY119), onto alunite has been studied in terms of pseudo-first- and second-order sorptions and intraparticle diffusion processes thus comparing chemical sorption and diffusion sorption processes. The pseudo-second-order model provided a high degree of correlation with the experimental data for the sorption processes. There was a small discrepancy at the beginning of the experiments (5-30 min) which suggested that intraparticle diffusion may be involved up to 30 min of the sorption process. The kinetics of sorption, based on the sorption capacities of disperse dyes on alunite, were followed at various time intervals. Results show that the intraparticle diffusion may be rate-limiting, followed by the pseudo- second-order kinetic model in the sorption of disperse dyes onto alunite during agitated batch contact time experiments. The rate constant, the equilibrium sorption capacity and the initial sorption rate were calculated as a function of the effect of alunite particle size, alunite dose, initial dye concentration and pH of the solution. (C) 2004 Elsevier B.V. All rights reserved.
dc.language English
dc.publisher ELSEVIER SCIENCE BV
dc.subject Chemistry
dc.title Application of kinetic models to the sorption of disperse dyes onto alunite
dc.type Article
dc.identifier.volume 242
dc.identifier.startpage 105
dc.identifier.endpage 113
dc.contributor.department Sakarya Üniversitesi/Fen-Edebiyat Fakültesi/Kimya Bölümü
dc.contributor.saüauthor Özacar, Mahmut
dc.contributor.saüauthor Şengil, İsmail Ayhan
dc.relation.journal COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
dc.identifier.wos WOS:000223612100014
dc.identifier.doi 10.1016/j.colsurfa.2004.03.029
dc.contributor.author Özacar, Mahmut
dc.contributor.author Şengil, İsmail Ayhan


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