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Highly efficient porous carbons for the removal of W(VI) oxyanion from wastewaters

dc.contributor.authorDias, Diogo
dc.contributor.authorDon, Davide
dc.contributor.authorJandosov, Jakpar
dc.contributor.authorBernardo, Maria
dc.contributor.authorPinto, Filomena
dc.contributor.authorFonseca, Isabel Maria
dc.contributor.authorSanches, André
dc.contributor.authorCaetano, P. S.
dc.contributor.authorLyubchyk, Svitlana
dc.contributor.authorLapa, Nuno
dc.date.accessioned2021-12-14T11:32:46Z
dc.date.available2021-12-14T11:32:46Z
dc.date.issued2021-06
dc.description.abstractABSTRACT: Pyrolysis chars derived from rice wastes were chemically activated and used in W(VI) oxyanion adsorption assays in synthetic and mining wastewaters. For comparison purposes, a commercial activated carbon (CAC) was also used. Different experimental conditions were tested in the adsorption assays: solid/liquid ratio (S/L), initial pH, contact time, and initial W concentration. The porous carbon P2C+KOH presented the overall best performance in both media, due to its high surface area (2610 m2 g-1), mesopore volume (1.14 cm3 g-1), and neutral pHpzc (6.92). In the synthetic wastewater, the highest uptake capacity of P2C+KOH (854 mg g-1) was found in the assays with an S/L 0.1 g L-1, an initial pH 2, and an initial W concentration of 150 mg L-1, for 24 h. This value was almost 8 times higher than the one obtained for CAC (113 mg g-1). In the mining wastewater, P2C+KOH showed an even higher uptake capacity (1561 mg g-1) in the assay with the same experimental conditions, which was almost 3 times higher than for CAC (561 mg g-1). These results suggest that P2C+KOH seems to be an efficient alternative to CAC in the W(VI) adsorption from liquid effluents.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationDias, Diogo... [et.al.] - Highly efficient porous carbons for the removal of W(VI) oxyanion from wastewaters. In: Journal of Hazardous Materials, 2021, Vol. 412, article nº 125201pt_PT
dc.identifier.doi10.1016/j.jhazmat.2021.125201pt_PT
dc.identifier.eissn1873-3336
dc.identifier.issn0304-3894
dc.identifier.urihttp://hdl.handle.net/10400.9/3631
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationFCOMP-01-0124-FEDER-027827pt_PT
dc.relationNanoMed - grant agreement: 734641pt_PT
dc.relationAssociated Laboratory for Green Chemistry - Clean Technologies and Processes
dc.relationRecuperação de metais com elevado valor comercial através da adsorção por carbonizados provenientes de resíduos da cultura do arroz Rice2Metal
dc.relationGeoBioSciences GeoTechnologies and GeoEngineering
dc.relation.publisherversionhttps://doi.org/10.1016/j.jhazmat.2021.125201pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectRice wastespt_PT
dc.subjectWastewater treatmentpt_PT
dc.subjectPyrolysispt_PT
dc.subjectTungstenpt_PT
dc.subjectAdsorptionpt_PT
dc.subjectActivated carbonspt_PT
dc.titleHighly efficient porous carbons for the removal of W(VI) oxyanion from wastewaterspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleAssociated Laboratory for Green Chemistry - Clean Technologies and Processes
oaire.awardTitleRecuperação de metais com elevado valor comercial através da adsorção por carbonizados provenientes de resíduos da cultura do arroz Rice2Metal
oaire.awardTitleGeoBioSciences GeoTechnologies and GeoEngineering
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/COMPETE/PTDC%2FAAG-REC%2F3477%2F2012/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50006%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/OE/SFRH%2FBD%2F101751%2F2014/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04035%2F2020/PT
oaire.citation.titleJournal of Hazardous Materialspt_PT
oaire.citation.volume412pt_PT
oaire.fundingStreamCOMPETE
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStreamOE
oaire.fundingStream6817 - DCRRNI ID
person.familyNameDias
person.familyNameDon
person.familyNameBernardo
person.familyNamePinto
person.familyNameSanches
person.familyNameLyubchyk
person.familyNameLapa
person.givenNameDiogo
person.givenNameDavide
person.givenNameMaria
person.givenNameFilomena
person.givenNameAndré
person.givenNameSvitlana
person.givenNameNuno
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project.funder.identifierhttp://doi.org/10.13039/501100001871
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project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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