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Competitive adsorption of boric acid and chromate onto alumina in aqueous solutions

dc.contributor.authorDemetriou, Antrien
dc.contributor.authorPashalidis, Ioannisen
dc.creatorDemetriou, Antrien
dc.creatorPashalidis, Ioannisen
dc.date.accessioned2019-11-21T06:18:42Z
dc.date.available2019-11-21T06:18:42Z
dc.date.issued2014
dc.identifier.urihttp://gnosis.library.ucy.ac.cy/handle/7/55403
dc.description.abstractThe competitive adsorption of boric acid and chromate from aqueous solutions by alumina has been investigated by spectrophotometry at pH 8, ionic strength = 0.0, 0.1 and 1.0 M NaClO4, T = 22 ± 3°C and under normal atmospheric conditions. The experimental data show that addition of excess boric acid in the system leads to the increase of Cr(VI) concentration in solution, indicating the replacement of adsorbed chromate by boron on the alumina surface. Data evaluation results in the determination of the competition reaction constant and the formation constant of the Cr(VI) surface complexes, which are logKCr(VI)-B(III) = -3.5 ± 0.2 and logaβ*Cr = 7.6 ± 0.3, respectively. © IWA Publishing 2014.en
dc.sourceWater Science and Technologyen
dc.source.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84896836930&doi=10.2166%2fwst.2013.724&partnerID=40&md5=a68fc3e0927942d9bda077228b6ba667
dc.subjectCompetitionen
dc.subjectarticleen
dc.subjectIonic strengthen
dc.subjectChromiumen
dc.subjectAluminaen
dc.subjectAdsorptionen
dc.subjectaqueous solutionen
dc.subjectaluminum oxideen
dc.subjectBoric aciden
dc.subjectpHen
dc.subjectRate constantsen
dc.subjectsurface propertyen
dc.subjectboronen
dc.subjectconcentration (composition)en
dc.subjectAlumina surfaceen
dc.subjectAtmospheric conditionsen
dc.subjectBoric Acidsen
dc.subjectBoride coatingsen
dc.subjectChromateen
dc.subjectChromatesen
dc.subjectchromic aciden
dc.subjectCompetition reactionsen
dc.subjectCompetitive adsorptionen
dc.subjectData evaluationen
dc.subjectFormation constantsen
dc.subjectReaction constantsen
dc.subjectreaction kineticsen
dc.subjectspectrophotometryen
dc.subjectSurface complexen
dc.titleCompetitive adsorption of boric acid and chromate onto alumina in aqueous solutionsen
dc.typeinfo:eu-repo/semantics/article
dc.identifier.doi10.2166/wst.2013.724
dc.description.volume69
dc.description.issue2
dc.description.startingpage378
dc.description.endingpage384
dc.author.faculty002 Σχολή Θετικών και Εφαρμοσμένων Επιστημών / Faculty of Pure and Applied Sciences
dc.author.departmentΤμήμα Χημείας / Department of Chemistry
dc.type.uhtypeArticleen
dc.description.notes<p>Cited By :1</p>en
dc.source.abbreviationWater Sci.Technol.en
dc.contributor.orcidPashalidis, Ioannis [0000-0002-7587-6395]
dc.gnosis.orcid0000-0002-7587-6395


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