Thermodynamics and Adsorption Studies of Dye (rhodamine-B) Onto Natural Diatomite

dc.authorscopusid 16679223000
dc.authorscopusid 15048326300
dc.contributor.author Koyuncu, Menderes
dc.contributor.author Kul, Ali Riza
dc.date.accessioned 2025-05-10T17:45:38Z
dc.date.available 2025-05-10T17:45:38Z
dc.date.issued 2014
dc.department T.C. Van Yüzüncü Yıl Üniversitesi en_US
dc.department-temp [Koyuncu, Menderes] Yuzuncu Yil Univ, Van Vocat Sch, Dept Text, Van, Turkey; [Kul, Ali Riza] Yuzuncu Yil Univ, Fac Sci, Dept Chem, Van, Turkey en_US
dc.description.abstract Thermodynamics and adsorption studies were conducted with a dye of rhodamine-B on natural diatomite. Adsorption of the dye was investigated with an initial dye concentration at pH 8 +/- 0.2, 303, 313 and 323 K. The adsorption experiments were carried out isothermally at three different temperatures. The Langmuir and Freundlich isotherm models were used to describe the equilibrium data and the results were discussed in details. The kinetic data agreed with the pseudo-first order model with rate constants (k(2)) in the range of 3.05-1.59.10(-1) g/mg min. The thermodynamic parameters such as standard free energy, entropy change and enthalpy were calculated for natural diatomite. These values showed that adsorption of rhodamine-B on natural diatomite was a spontaneous and endothermic process. en_US
dc.description.woscitationindex Science Citation Index Expanded
dc.identifier.doi 10.5277/ppmp140217
dc.identifier.endpage 643 en_US
dc.identifier.issn 1643-1049
dc.identifier.issn 2084-4735
dc.identifier.issue 2 en_US
dc.identifier.scopus 2-s2.0-84921744412
dc.identifier.scopusquality Q3
dc.identifier.startpage 631 en_US
dc.identifier.uri https://doi.org/10.5277/ppmp140217
dc.identifier.uri https://hdl.handle.net/20.500.14720/16412
dc.identifier.volume 50 en_US
dc.identifier.wos WOS:000346122700017
dc.identifier.wosquality Q3
dc.language.iso en en_US
dc.publisher oficyna Wydawnicza Politechniki Wroclawskiej en_US
dc.relation.publicationcategory Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı en_US
dc.rights info:eu-repo/semantics/closedAccess en_US
dc.subject Diatomite en_US
dc.subject Rhodamine B en_US
dc.subject Adsorption en_US
dc.subject Thermodynamics en_US
dc.subject Langmuir Isotherm en_US
dc.subject Freundlich Isotherm en_US
dc.title Thermodynamics and Adsorption Studies of Dye (rhodamine-B) Onto Natural Diatomite en_US
dc.type Article en_US
dspace.entity.type Publication

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