Adsorption of congo red and methylene blue dyes on an ashitaba waste and a walnut shell-based activated carbon from aqueous solutions: Experiments, characterization and physical interpretations

dc.creatorLi, Zichao
dc.creatorHanafy, Hassan
dc.creatorZhanga, Lei
dc.creatorSellaouid, Lotfi
dc.creatorSchadeck Netto, Matias
dc.creatorSilva Oliveira, Marcos Leandro
dc.creatorSeliem, Moaaz K.
dc.creatorDotto, Guilherme Luiz
dc.creatorBonilla-Petriciolet, Adrian
dc.creatorLia, Qun
dc.date2020-02-03T13:21:22Z
dc.date2020-02-03T13:21:22Z
dc.date2020-01-28
dc.date.accessioned2023-10-03T19:41:52Z
dc.date.available2023-10-03T19:41:52Z
dc.identifierhttp://hdl.handle.net/11323/5971
dc.identifierCorporación Universidad de la Costa
dc.identifierREDICUC - Repositorio CUC
dc.identifierhttps://repositorio.cuc.edu.co/
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/9171535
dc.descriptionActivated carbons were prepared from ashitaba waste and a walnut shell to study the adsorption mechanism of congo red and methylene blue dyes in aqueous solution. These adsorbents were characterized via XRD, FTIR and SEM techniques and the dye adsorption isotherms at three temperatures were quantified. A statistical physics model was applied to interpret the adsorption mechanism of tested dyes and adsorbents. Modeling results showed that these dyes were practically separated in the solution leading to an absence of the aggregation process. Adsorption orientations of dye molecules on the adsorbents changed depending on the temperature and nature of systems. The adsorption capacity of ashitaba waste activated carbon for the removal of congo red was significant thus indicating strong interactions between this dye and tested adsorbent. Calculated adsorption energy varied from 7.25 to 20.43 kJ/mol and they showed that the adsorption of both adsorbates occurred via physical interactions at different temperatures where the removal process was endothermic.
dc.formatapplication/pdf
dc.languageeng
dc.publisherUniversidad de la Costa
dc.rightsCC0 1.0 Universal
dc.rightshttp://creativecommons.org/publicdomain/zero/1.0/
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rightshttp://purl.org/coar/access_right/c_abf2
dc.subjectAshitaba waste
dc.subjectWalnut Shell
dc.subjectMethylene blue
dc.subjectCongo red
dc.subjectPhysical modeling
dc.subjectActivated carbon
dc.titleAdsorption of congo red and methylene blue dyes on an ashitaba waste and a walnut shell-based activated carbon from aqueous solutions: Experiments, characterization and physical interpretations
dc.typePre-Publicación
dc.typehttp://purl.org/coar/resource_type/c_816b
dc.typeText
dc.typeinfo:eu-repo/semantics/preprint
dc.typeinfo:eu-repo/semantics/draft
dc.typehttp://purl.org/redcol/resource_type/ARTOTR
dc.typeinfo:eu-repo/semantics/acceptedVersion
dc.typehttp://purl.org/coar/version/c_ab4af688f83e57aa


Este ítem pertenece a la siguiente institución