Publication:
Kinetics, isotherms and thermodynamics of the adsorption of lead(II) ions onto porous mono-sized microspheres possessing imidazole functional groups

dc.contributor.authorTuncel, Ali
dc.contributor.buuauthorKara, Ali
dc.contributor.departmentFen Edebiyat Fakültesi
dc.contributor.departmentKimya Ana Bilim Dalı
dc.contributor.researcheridAAG-6271-2019
dc.contributor.scopusid7102824859
dc.date.accessioned2022-01-10T06:42:23Z
dc.date.available2022-01-10T06:42:23Z
dc.date.issued2011-03
dc.description.abstractA modified two-step seeded polymerization was used for the preparation of porous mono-sized microspheres of poly(ethylene glycol dimethacrylate-co-1-vinylimidazole) [poly(EGDMA-co-VIM)] of 7 mu m in size. The specific surface area and the EGDMA/VIM molar ratio of the microspheres were determined as 64.5 m(2)/g and 1.5:1.0 mol/mol, respectively. The adsorption of Pb(II) ions from aqueous solution onto the porous mono-sized poly(EGDMA-co-VIM) microspheres was examined. The maximum adsorption capacities of the microspheres towards Pb(II) ions were determined as 21.74, 30.52, 49.23 and 56.48 mg/g at 293 K, 303 K, 318 K and 338 K, respectively. The dynamic and equilibrium adsorption behaviours of the system were adequately described by the pseudo-second-order kinetic model and the Langmuir isotherm, respectively. The apparent activation energy was determined as 6.212 kJ/mol, which is characteristic of a chemically controlled reaction. The values of E-fe obtained from the Dubinin-Radushkevich equation in the non-linear form were 9.153 kJ/mol at 293 K, 10.34 kJ/mol at 303 K, 10.18 kJ/mol at 318 K and 10.91 kJ/mol at 333 K, thereby indicating that the adsorption of Pb(II) ions onto the porous mono-sized poly(EGDMA-co-VIM) microspheres occurred via a chemical process at all the temperatures studied. Various thermodynamic parameters, such as the Gibbs' free energy change (Delta G(0)), the standard enthalpy change (Delta H-0) and the standard entropy change (Delta S-0) were also determined. The thermodynamic parameters obtained indicated that the adsorption process was endothermic in nature. These results demonstrate that the material studied could be used as a purifier for the removal of Pb(II) ions from water and wastewater.
dc.identifier.citationKara, A. vd. (2011). "Kinetics, isotherms and thermodynamics of the adsorption of lead(II) ions onto porous mono-sized microspheres possessing imidazole functional groups". Adsorption Science and Technology, 29(3), 259-275.
dc.identifier.endpage275
dc.identifier.issn0263-6174
dc.identifier.issn2048-4038
dc.identifier.issue3
dc.identifier.scopus2-s2.0-80053495000
dc.identifier.startpage259
dc.identifier.urihttps://doi.org/10.1260/0263-6174.29.3.259
dc.identifier.urihttps://journals.sagepub.com/doi/abs/10.1260/0263-6174.29.3.259
dc.identifier.urihttp://hdl.handle.net/11452/23948
dc.identifier.volume29
dc.identifier.wos000295535300002
dc.indexed.wosSCIE
dc.language.isoen
dc.publisherSage Publications
dc.relation.bapUAP(F)-2010/26
dc.relation.collaborationYurt içi
dc.relation.journalAdsorption Science and Technology
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectChemistry
dc.subjectEngineering
dc.subjectHeavy-metal ions
dc.subjectAqueous-solution
dc.subjectPb(II) ions
dc.subjectCopper(II) ions
dc.subjectRemoval
dc.subjectEquilibrium
dc.subjectWater
dc.subjectBeads
dc.subjectCadmium(II)
dc.subjectMicrobeads
dc.subjectActivation energy
dc.subjectAdsorption
dc.subjectDyes
dc.subjectEthylene
dc.subjectEthylene glycol
dc.subjectFunctional groups
dc.subjectFunctional polymers
dc.subjectLons
dc.subjectIsotherms
dc.subjectLead
dc.subjectMathematical models
dc.subjectMicrospheres
dc.subjectWastewater
dc.subjectAdsorption capacities
dc.subjectAdsorption of pb
dc.subjectAdsorption process
dc.subjectApparent activation energy
dc.subjectChemical process
dc.subjectControlled reactions
dc.subjectDubinin-Radushkevich equations
dc.subjectEquilibrium adsorption
dc.subjectFree energy change
dc.subjectLangmuir isotherm
dc.subjectLead ions
dc.subjectMolar ratio
dc.subjectMono-sized
dc.subjectPseudo-second-order kinetic models
dc.subjectSeeded polymerization
dc.subjectStandard enthalpy
dc.subjectStandard entropy
dc.subjectThermodynamic parameter
dc.subjectVinylimidazole
dc.subjectWater and wastewater
dc.subjectLead removal (water treatment)
dc.subject.scopusLead Level in Blood; Lead Acetates; Neurotoxicity
dc.subject.wosChemistry, applied
dc.subject.wosChemistry, physical
dc.subject.wosEngineering, chemical
dc.titleKinetics, isotherms and thermodynamics of the adsorption of lead(II) ions onto porous mono-sized microspheres possessing imidazole functional groups
dc.typeArticle
dc.wos.quartileQ4
dc.wos.quartileQ3 (Engineering, chemical)
dspace.entity.typePublication
local.contributor.departmentFen Edebiyat Fakültesi/Kimya Ana Bilim Dalı
local.indexed.atScopus
local.indexed.atWOS

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