2,4-Dichlorophenoxyacetic acid adsorption on montmorillonite organoclay for controlled release applications

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorNatarelli, Caio Vinicius Lima-
Autor(es): dc.creatorClaro, Pedro Ivo Cunha-
Autor(es): dc.creatorMiranda, Kelvi Wilson Evaristo-
Autor(es): dc.creatorFerreira, Guilherme Max Dias-
Autor(es): dc.creatorOliveira, Juliano Elvis de-
Autor(es): dc.creatorMarconcini, José Manoel-
Data de aceite: dc.date.accessioned2026-02-09T11:48:30Z-
Data de disponibilização: dc.date.available2026-02-09T11:48:30Z-
Data de envio: dc.date.issued2020-04-22-
Data de envio: dc.date.issued2020-04-22-
Data de envio: dc.date.issued2019-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br/handle/1/40228-
Fonte completa do material: dc.identifierhttps://link.springer.com/article/10.1007/s42452-019-1235-4-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1147909-
Descrição: dc.description2,4-Dichlorophenoxyacetic acid (2,4-D) is one of the most used herbicides for weed control. However, the use of large concentrations of 2,4-D is dangerous and have great carcinogenic potential. Thus, this work evaluated the 2,4-D sorption behavior by an organically modifed montmorillonite nanoclay using kinetic and thermodynamic approaches. Adsorption isotherms and kinetic studies, conducted under controlled temperature and pH conditions, indicated a high capacity of the nanoclay to remove 2,4-D from aqueous medium, being that the adsorption mechanism probably involved physisorption and chemisorption. Besides, thermodynamic parameters obtained showed that the adsorption was enthalpically driven for the physisorption step, with ΔH◦=−9.849 kJ mol−1. The analyses showed that 2,4-D adsorption caused a partial exfoliation of the montmorillonite structure, probably due to the high herbicide concentration utilized. Release studies of 2,4-D from the nanoclay showed that the desorption process occurred in two steps, a burst release of the 2,4-D molecules followed by a slow release. The results demonstrated by this study indicates the feasibility of the proposed system for controlled release or even water treatment applications.-
Idioma: dc.languageen-
Publicador: dc.publisherElsevier-
Direitos: dc.rightsrestrictAccess-
???dc.source???: dc.sourceSN Applied Sciences-
Palavras-chave: dc.subjectOrganically modifed nanoclay-
Palavras-chave: dc.subjectHerbicide-
Palavras-chave: dc.subjectAdsorption studies-
Palavras-chave: dc.subjectControlled release-
Palavras-chave: dc.subjectAgriculture applications-
Título: dc.title2,4-Dichlorophenoxyacetic acid adsorption on montmorillonite organoclay for controlled release applications-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

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