Removal of thorium (IV) ions from aqueous solution by a novel nanoporous ZnO: Isotherms, kinetic and thermodynamic studies

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dc.contributor.authorKaynar U.H.
dc.contributor.authorAyvacikli M.
dc.contributor.authorHiçsönmez U.
dc.contributor.authorÇam Kaynar S.
dc.date.accessioned2024-07-22T08:12:45Z
dc.date.available2024-07-22T08:12:45Z
dc.date.issued2015
dc.description.abstractThe adsorption of thorium (IV) from aqueous solutions onto a novel nanoporous ZnO particles prepared by microwave assisted combustion was studied using batch methods under different experimental conditions. The effect of contact time, solution pH, initial concentration and temperature on adsorption process was studied. The ability of this material to remove Th (IV) from aqueous solution was characterises by Langmuir, Freunlinch and Temkin adsorption isotherms. The adsorption percent and distribution coefficient for nanoporous ZnO powders in optimum conditions were 97% ± 1.02; 8080 L kg-1for Th (IV), respectively. Based on the Langmuir model, the maximum adsorption capacity of nanoporous ZnO for Th (IV) was found to be 1500 g kg-1. Thermodynamic parameters were determined and discussed. The results indicated that nanoporous ZnO was suitable as sorbent material for recovery and adsorption of Th (IV) ions from aqueous solutions. The radioactive Th (VI) in surface water, sea water and waste waters from technologies producing nuclear fuels, mining (uranium and thorium) and laboratories working with radioactive materials (uranium and thorium) can be removed with this nanoporous ZnO. © 2015 Elsevier Ltd.
dc.identifier.DOI-ID10.1016/j.jenvrad.2015.08.014
dc.identifier.issn0265931X
dc.identifier.urihttp://akademikarsiv.cbu.edu.tr:4000/handle/123456789/16169
dc.language.isoEnglish
dc.publisherElsevier Ltd
dc.subjectAdsorption
dc.subjectEnvironmental Restoration and Remediation
dc.subjectHydrogen-Ion Concentration
dc.subjectKinetics
dc.subjectMetal Nanoparticles
dc.subjectTemperature
dc.subjectThermodynamics
dc.subjectThorium
dc.subjectTime Factors
dc.subjectWater Pollutants, Radioactive
dc.subjectZinc Oxide
dc.subjectNuclear fuels
dc.subjectRadioactive materials
dc.subjectRadioactive wastes
dc.subjectRadioactivity
dc.subjectSeawater
dc.subjectSolutions
dc.subjectSurface waters
dc.subjectThorium
dc.subjectUranium
dc.subjectWaste incineration
dc.subjectZinc oxide
dc.subjectnuclear fuel
dc.subjectradioactive material
dc.subjectthorium
dc.subjecturanium
dc.subjectzinc oxide nanoparticle
dc.subjectmetal nanoparticle
dc.subjectthorium
dc.subjectwater pollutant
dc.subjectzinc oxide
dc.subjectAdsorption capacities
dc.subjectDistribution coefficient
dc.subjectExperimental conditions
dc.subjectHigh capacity
dc.subjectKinetic and thermodynamic studies
dc.subjectMicrowave-assisted combustions
dc.subjectNanoporous ZnO
dc.subjectThermodynamic parameter
dc.subjectadsorption
dc.subjectaqueous solution
dc.subjectefficiency measurement
dc.subjectexperimental study
dc.subjection exchange
dc.subjectisotherm
dc.subjectoxide
dc.subjectpollutant removal
dc.subjectporous medium
dc.subjectradioactivity
dc.subjectreaction kinetics
dc.subjectthermodynamics
dc.subjectthorium
dc.subjecturanium
dc.subjectzinc
dc.subjectadsorption
dc.subjectadsorption kinetics
dc.subjectaqueous solution
dc.subjectArticle
dc.subjectcombustion
dc.subjectenvironmental protection
dc.subjectenvironmental radioactivity
dc.subjectmicrowave radiation
dc.subjectpowder
dc.subjecttechnology
dc.subjecttemperature
dc.subjectthermodynamics
dc.subjectwaste water
dc.subjectwaste water management
dc.subjectwater pollutant
dc.subjectanalysis
dc.subjectchemistry
dc.subjectdevices
dc.subjectecosystem restoration
dc.subjectkinetics
dc.subjectpH
dc.subjectprocedures
dc.subjecttime factor
dc.subjectwater pollutant
dc.subjectAdsorption
dc.titleRemoval of thorium (IV) ions from aqueous solution by a novel nanoporous ZnO: Isotherms, kinetic and thermodynamic studies
dc.typeArticle

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