Valorisation of Pine Cone as an Efficient Biosorbent for the Removal of Pb(II), Cd(II), Cu(II), and Cr(VI)
dc.contributor.author
dc.date.accessioned
2021-05-17T12:47:10Z
dc.date.available
2021-05-17T12:47:10Z
dc.date.issued
2021-04-27
dc.identifier.issn
0263-6174
dc.identifier.uri
dc.description.abstract
Valorisation of pine cone as an efficient, low-cost, and eco-friendly biosorbent for the removal of heavy metals from aqueous solutions is evaluated. The morphology and surface chemistry of the biosorbent are characterized by scanning electron microscopy, energy-dispersive elemental analysis, and Fourier transform infrared spectroscopy, revealing the presence of carboxylic and alcoholic functional groups that interact with metal ions. The effect of the contact time, pH, amount of adsorbent, and initial metal concentration in the adsorption is studied, resulting in removal percentages for Cd(II), Cu(II), Pb(II), and Cr(VI) (metal concentration of 5 mg L-1) of 82.24%, 93.71%, 94.67%, and 88.8%, respectively (, 2 g L-1 of adsorbent), except for Cr(VI) (, 10 g L-1). The equilibrium data of Pb(II) and Cd(II) were found to follow the Langmuir-Freundlich model, with maximum adsorption capacities of 100.01 and 78.73 mg g-1, respectively, whereas Cu(II) followed the Langmuir model with 33.55 mg g-1. Cr(VI) adsorption data also fitted the Langmuir model, and the maximum adsorption capacity was 57.36 mg g-1. Adsorption data was obtained at pH 5.4 for divalent metal ions and at pH 2 for Cr(VI) and in a range of metal concentrations ranging from 1 to 500 mg L-1 at 298.2 K. The presence of the three metal ions in the solution does not affect the percentage of the target metal ion adsorbed, proving the absence of competition between them and showing the pine cone to be an efficient adsorbent to treat multimetal effluents allowing water reuse
dc.description.sponsorship
This study was financed by the research project PID2019-107033GB-(AEI/FEDER/UE) of the “Agencia Española de Investigación.” Marwa Ben Amar acknowledges the financial
support of the Faculty of Science (University of Sfax, Tunisia)
and of the Environmental and Analytical Chemistry
Research Group of the Department of Chemistry (University
of Girona, Spain)
dc.format.mimetype
application/pdf
dc.language.iso
eng
dc.publisher
Hindawi
dc.relation.isformatof
Reproducció digital del document publicat a: https://doi.org/10.1155/2021/6678530
dc.relation.ispartof
Adsorption Science and Technology, 2021, vol. 2021, art.núm. 6678530
dc.relation.ispartofseries
Articles publicats (D-Q)
dc.rights
Attribution 4.0 International
dc.rights.uri
dc.subject
dc.title
Valorisation of Pine Cone as an Efficient Biosorbent for the Removal of Pb(II), Cd(II), Cu(II), and Cr(VI)
dc.type
info:eu-repo/semantics/article
dc.rights.accessRights
info:eu-repo/semantics/openAccess
dc.relation.projectID
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-107033GB-C22/ES/HERRAMIENTAS DE MUESTREO INNOVADORAS Y MUESTREADORES PASIVOS BASADOS EN MEMBRANAS DE INCLUSION DE POLIMEROS PARA MONITORIZACION, DETECCION Y DISPONIBILIDAD DE CONTAMINANTES/
dc.type.version
info:eu-repo/semantics/publishedVersion
dc.identifier.doi
dc.identifier.idgrec
033397
dc.contributor.funder
dc.type.peerreviewed
peer-reviewed
dc.relation.FundingProgramme
dc.relation.ProjectAcronym
dc.identifier.eissn
2048-4038