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Intensified elimination of aqueous heavy metal ions using chicken feathers chemically modified by a batch method

2020-08-15Artigo científico Acesso aberto
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dc.contributor.authorChakraborty, Rupa
dc.contributor.authorAsthana, Anupama
dc.contributor.authorSingh, Ajaya Kumar
dc.contributor.authorYadav, Sushma
dc.contributor.authorSusan, Md Abu Bin Hasan
dc.contributor.authorCarabineiro, Sónia A. C.
dc.contributor.institutionLAQV@REQUIMTE
dc.contributor.institutionDQ - Departamento de Química
dc.contributor.pblElsevier
dc.date.accessioned2020-09-16T22:49:50Z
dc.date.available2022-06-09T00:32:18Z
dc.date.embargoedUntil2022-06-08
dc.date.issued2020-08-15
dc.descriptionUIDB/50006/2020
dc.description.abstractModified chicken feathers (MCFs) were used as adsorbents for the removal of Co(II), Cu(II), Fe(II) and Ni(II) heavy metal ions from water by varying pH, adsorbent concentration and time. MCFs were characterized using Fourier Transform Infrared (FTIR) spectroscopy, Scanning Electron Microscopic (SEM) analysis, Energy Dispersive X-ray (EDX) spectroscopy, Adsorption of N2 at −196 °C, Thermogravimetric analysis (TGA) and X-ray Diffraction (XRD) analysis. The adsorption isotherm for the metal ions could be well explained by the Langmuir model. The maximum adsorption capacities were 200.0, 50.0, 43.47, and 4.85 mg/g, following the sequence: Cu(II) > Co(II) > Fe(II) > Ni(II), respectively. Removal efficiencies of Co(II), Cu(II), Fe(II) and Ni(II) ions were 98.7%, 98.9%, 98.7% and 99%, respectively, for 20 mg/L concentration. The study of the adsorption kinetics for metal ions on MCFs confirmed that the process followed a pseudo second order kinetic model in all cases. The thermodynamics showed that the adsorption processes for metal ions adsorption on MCFs were spontaneous and endothermic. MCFs exhibited a good recyclability and high adsorption efficacy after 7 cycles using a 0.1 M EDTA solution, maintaining 90% of the adsorption ability.en
dc.description.versionauthorsversion
dc.description.versionpublished
dc.format.extent1888883
dc.identifier.doi10.1016/j.molliq.2020.113475
dc.identifier.issn0167-7322
dc.identifier.otherPURE: 18689057
dc.identifier.otherPURE UUID: 39837015-be8a-465b-b3a2-f057f5596b48
dc.identifier.otherScopus: 85085965610
dc.identifier.otherWOS: 000559968600048
dc.identifier.otherORCID: /0000-0001-9913-4671/work/80148884
dc.identifier.urihttp://hdl.handle.net/10362/104191
dc.identifier.urlhttps://www.scopus.com/pages/publications/85085965610
dc.language.isoeng
dc.peerreviewedyes
dc.subjectAdsorption isotherm
dc.subjectHeavy metal ions
dc.subjectKinetics
dc.subjectModified chicken feathers
dc.subjectRegeneration
dc.subjectThermodynamics
dc.subjectElectronic, Optical and Magnetic Materials
dc.subjectAtomic and Molecular Physics, and Optics
dc.subjectCondensed Matter Physics
dc.subjectSpectroscopy
dc.subjectPhysical and Theoretical Chemistry
dc.subjectMaterials Chemistry
dc.titleIntensified elimination of aqueous heavy metal ions using chicken feathers chemically modified by a batch methoden
dc.typejournal article
degois.publication.titleJournal of Molecular Liquids
degois.publication.volume312
dspace.entity.typePublication
rcaap.rightsopenAccess

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