Chemical modification of silica gel with 4,4 '-((1Z,8Z)-2,5,8-triazanona-1,8-diene-1,9-diyl)diphenol and applications to chromium Cr(VI) ions in industrial wastewaters

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dc.authorid0000-0001-7492-8950en_US
dc.authorid0000-0002-7055-0847en_US
dc.contributor.authorÇimen, Aysel
dc.contributor.authorKarakuş, Eren
dc.contributor.authorBilgiç, Ali
dc.date.accessioned2019-12-06T21:16:26Z
dc.date.available2019-12-06T21:16:26Z
dc.date.issued2016
dc.departmentKMÜ, Kamil Özdağ Fen Fakültesi, Kimya Bölümüen_US
dc.descriptionWOS:000373352500009en_US
dc.description.abstractThis study describes synthesis of a new resin through immobilization of the 4,4'-((1Z,8Z)2,5,8-triazanona-1,8-diene-1,9-diyl)diphenol (TRI) onto silica gel modified with 3-chloropropyltrimethoxy silane and its application for the removal of chromium(VI) ions from aqueous solution as well as from industrial wastewater. The same applications were also made for industrial wastewater vapor. The newly synthesized Si-TRI is characterized by scanning electron microscope and elemental analysis and Cr(VI) heavy metal ions were used as sorbate. The sorption of Cr(VI) ion was evaluated with using batch methods. The value of adsorption of Cr(VI) ion was detected by an atomic absorption spectrometer. The influences of concentration, temperature, amount of metal ions, contact time and pH to sorption on the Si-TRI were also investigated. The optimum pH range for the sorption of the metal ions is 5.0. The mean sorption energies for modified silica gel were found to be 21.32 and 17.68 kJ/mol for Cr(VI) in aqueous solution and industrial wastewater respectively, which may correspond to chemical ion-exchange. The maximum adsorption capacities and isotherm parameters were calculated from the Langmuir, Freundlich and Dubinin-Radushkevich (D-R) isotherm equations. The adsorption of Cr(VI) ion onto the immobilized material followed the Langmuir adsorption models. Thermodynamic parameters such as free energy (Delta G degrees), entropy (Delta S degrees) and enthalpy (Delta H degrees) were also calculated from the sorption results. It was reflected reactions were endothermic and spontaneous. The modified structure used as adsorbent was successfully employed in the removal of Cr(VI) ions on the samples of industrial wastewater.en_US
dc.description.sponsorshipScientific Research Project Commission of Karamanoglu Mehmetbey University (BAP)Karamanoglu Mehmetbey University [06-L-12]en_US
dc.description.sponsorshipThe authors thank to the Scientific Research Project Commission of Karamanoglu Mehmetbey University for financial support (BAP-Grant number 06-L-12).en_US
dc.identifier.citationÇimen, A., Karakuş, E., Bilgiç, A. (2016). Chemical modification of silica gel with 4,4 '-((1Z,8Z)-2,5,8-triazanona-1,8-diene-1,9-diyl)diphenol and applications to chromium Cr(VI) ions in industrial wastewaters. Desalination And Water Treatment, 57, 16 , 7219-7231.
dc.identifier.doi10.1080/19443994.2015.1014854
dc.identifier.endpage7231en_US
dc.identifier.issn1944-3994
dc.identifier.issn1944-3986
dc.identifier.issue16en_US
dc.identifier.scopus2-s2.0-84923293287
dc.identifier.scopusqualityQ3
dc.identifier.startpage7219en_US
dc.identifier.urihttps://dx.doi.org/10.1080/19443994.2015.1014854
dc.identifier.urihttps://hdl.handle.net/11492/2900
dc.identifier.volume57en_US
dc.identifier.wosWOS:000373352500009
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Sceince
dc.indekslendigikaynakScopus
dc.institutionauthorÇimen, Aysel
dc.institutionauthorKarakuş, Eren
dc.institutionauthorBilgiç, Ali
dc.language.isoen
dc.publisherTaylor & Francis Incen_US
dc.relation.journalDesalination And Water Treatmenten_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectAdsorptionen_US
dc.subjectImmobilizationen_US
dc.subjectSilica Gelen_US
dc.subjectWastewateren_US
dc.subjectChromiumen_US
dc.titleChemical modification of silica gel with 4,4 '-((1Z,8Z)-2,5,8-triazanona-1,8-diene-1,9-diyl)diphenol and applications to chromium Cr(VI) ions in industrial wastewatersen_US
dc.typeArticle

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