Heavy metals uptake from aqueous solutions using marine algae (Colpomenia sinuosa): kinetics and isotherms

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dc.authorid0000-0002-0233-0025
dc.authorid0000-0002-0233-0025
dc.authorid0000-0002-0233-0025
dc.authorid0000-0001-5036-306X
dc.authorid0000-0001-5036-306X
dc.contributor.authorCirik, Yeliz
dc.contributor.authorBekci, Zehra Molu
dc.contributor.authorBuyukates, Yesim
dc.contributor.authorAk, Ilknur
dc.contributor.authorMerdivan, Melek
dc.date.accessioned2019-08-01T13:38:39Z
dc.date.available2019-08-01T13:38:39Z
dc.date.issued2012
dc.departmentNiğde ÖHÜ
dc.description.abstractThe adsorption of copper, zinc, cobalt, lead and cadmium ions onto Colpomenia sinuosa was studied as a function of contact time, initial metal ion concentration and initial pH. In addition, desorption studies were performed. Characterisation of this adsorbent was also confirmed by Fourier transform infrared (FTIR) spectroscopy and scanning electron microscopy (SEM) analysis. Batch adsorption experimental data were analysed using Langmuir, Freundlich and Dubinin-Raduschkevich (D-R) adsorption isotherms. The results indicated that the biosorption equilibrium was well described by both the Freudlich and D-R isotherms. Moreover, sorption kinetics was performed and it was observed that equilibrium was reached in <60 min, which could be described by the pseudo-second-order kinetic model for all heavy metals. The sorption of heavy metals onto the biomass was largely dependent on the initial solution pH. The elution efficiency for heavy metal ions desorption from C. sinuosa was determined for 0.1 M HCl, 1.0 M HCl and 1.0 M HNO3. Desorption efficiency and also adsorption capacity were highest for Pb(II). The results indicate that C. sinuosa has great potential for the removal of heavy metals in an ecofriendly process.
dc.identifier.doi10.1080/02757540.2012.667084
dc.identifier.endpage480
dc.identifier.issn0275-7540
dc.identifier.issue5
dc.identifier.scopus2-s2.0-84866692842
dc.identifier.scopusqualityQ2
dc.identifier.startpage469
dc.identifier.urihttps://dx.doi.org/10.1080/02757540.2012.667084
dc.identifier.urihttps://hdl.handle.net/11480/4622
dc.identifier.volume28
dc.identifier.wosWOS:000308984800005
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthor[0-Belirlenecek]
dc.language.isoen
dc.publisherTAYLOR & FRANCIS LTD
dc.relation.ispartofCHEMISTRY AND ECOLOGY
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectColpomenia sinuosa
dc.subjectheavy metals
dc.subjectadsorption isotherms
dc.subjectadsorption kinetics
dc.subjectthermodynamics
dc.titleHeavy metals uptake from aqueous solutions using marine algae (Colpomenia sinuosa): kinetics and isotherms
dc.typeArticle

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