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dc.creatorde O. Salomón, Yamil L.
dc.creatorgeorgin, jordana
dc.creatorFranco, Dison
dc.creatorNetto, Matias S.
dc.creatorPiccill, Daniel G. A.
dc.creatorFoletto, Edson
dc.creatorSilva Oliveira, Luis Felipe
dc.creatorDotto, Guilherme Luiz
dc.date.accessioned2020-12-16T14:36:00Z
dc.date.available2020-12-16T14:36:00Z
dc.date.issued2021-02
dc.identifier.issn2213-3437
dc.identifier.urihttps://hdl.handle.net/11323/7598
dc.description.abstractIn this work, an activated carbon sample with a high adsorptive performance for the herbicide 2,4-dichlorophenoxyacetic acid (2,4-D) was prepared from queen palm endocarp (Syagrus romanzoffiana) by pyrolysis process. The activated carbon presented an XRD pattern related to carbon graphite and functional groups such as C–H, C˭O, O–H. The material particles presented a highly-porous structure, being beneficial to the adsorption process. The activated carbon showed a remarkable specific surface area of 782 m2 g−1 and pore volume of 0.441 cm3 g−1. The solution pH presented a strong influence on the adsorption process, with ideal pH = 2, being the best adsorbent dosage, 0.5 g L−1. The correspondent removal percentage was 95.4%. The pseudo-second-order model represented kinetic data, presenting R2 > 0.992 and MSR< 19.62 (mg g−1)2. The Langmuir model was the most suitable for describing the equilibrium data with the highest R2 (> 0.997) and lowest values of MSR (< 92.04 (mg g−1)2), indicating a maximum capacity of 367.77 mg g−1. The thermodynamic study indicated a spontaneous operation, with ΔG0 ranging from –23.2 to −32.6 kJ mol−1 and endothermic process (ΔH0 = 67.30 kJ mol−1), involving physical interactions in the adsorbent/adsorbate system. The adsorbent could be regenerated by NaOH and used 7 times with the same adsorption capacity. Hence, overall, the activated carbon prepared from the Jerivá endocarp corresponds to a promising adsorbent in removing 2,4-D herbicide in wastewater.spa
dc.format.mimetypeapplication/pdfspa
dc.language.isoengspa
dc.publisherCorporación Universidad de la Costaspa
dc.rightsCC0 1.0 Universal*
dc.rights.urihttp://creativecommons.org/publicdomain/zero/1.0/*
dc.sourceJournal of Environmental Chemical Engineeringspa
dc.subjectActivated carbónspa
dc.subjectSyagrus romanzoffianaspa
dc.subjectQueen palmspa
dc.subject2,4-Dspa
dc.subjectAdsorptionspa
dc.titleHigh-performance removal of 2,4-dichlorophenoxyacetic acid herbicide in water using activated carbon derived from Queen palm fruit endocarp (Syagrus romanzoffiana)spa
dc.typePreprintspa
dc.type.hasVersioninfo:eu-repo/semantics/draftspa
dc.source.urlhttps://www.sciencedirect.com/science/article/pii/S2213343720312604spa
dc.rights.accessrightsinfo:eu-repo/semantics/openAccessspa
dc.identifier.doihttps://doi.org/10.1016/j.jece.2020.104911


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Except where otherwise noted, this item's license is described as CC0 1.0 Universal