Adsorption of organic and inorganic arsenic from aqueous solutions using MgAl-LDH with incorporated nitroprusside

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dc.creatorGabriella Alexandre Borges
dc.creatorGabriel Max Dias Ferreira
dc.creatorKisla Prislen Félix Siqueira
dc.creatorAnderson Dias
dc.creatorKeirom Osmany Nàjera Navarro
dc.creatorSilvia Juliana Barros e Silva
dc.creatorGuilherme Dias Rodrigues
dc.creatorAparecida Barbosa Mageste
dc.date.accessioned2023-11-30T20:03:23Z
dc.date.accessioned2025-09-08T22:59:15Z
dc.date.available2023-11-30T20:03:23Z
dc.date.issued2020
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Gerais
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
dc.description.sponsorshipOutra Agência
dc.format.mimetypepdf
dc.identifier.doihttps://doi.org/10.1016/j.jcis.2020.04.078
dc.identifier.issn0021-9797
dc.identifier.urihttps://hdl.handle.net/1843/61591
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofJournal of Colloid and Interface Science
dc.rightsAcesso Aberto
dc.subjectArsênio - Especiação química
dc.subjectAbsorção química
dc.subjectHidróxidos
dc.subjectRaios X - Difração
dc.subjectRaman, Espectroscopia de
dc.subjectAdsorção
dc.subject.otherArsenic
dc.subject.otherSpeciation
dc.subject.otherAdsorption
dc.subject.otherLayered double hydroxide
dc.subject.otherX-ray diffraction
dc.subject.otherRaman spectroscopy
dc.titleAdsorption of organic and inorganic arsenic from aqueous solutions using MgAl-LDH with incorporated nitroprusside
dc.typeArtigo de periódico
local.citation.epage205
local.citation.spage194
local.citation.volume575
local.description.resumoAn evaluation was made of the use of MgAl-LDH with incorporated nitroprusside as an adsorbent to remove inorganic arsenic (As(III) and As(V)) and organic arsenic (DMA) from aqueous matrices. The material was synthesized by the co-precipitation method at constant pH and was characterized by Raman spectroscopy, infrared spectroscopy, thermogravimetry, X-ray diffraction, and high-resolution transmission electron microscopy, before and after use in the adsorption process. The effects on adsorption of contact time, initial metalloid concentration, and pH were investigated. For an initial concentration of 10 mg L−1 and pH 2.00, the MgAl-LDH with incorporated nitroprusside was only able to adsorb the DMA and As(V) species, with removal percentages of 25.10 and 103.8%, respectively. At pH 6.02 and 12.00, only the inorganic species were adsorbed, with removal percentages of 22.93% and 60.07%, respectively, for As(III), and 89.81% and 71.64%, respectively, for As(V). Application of the Langmuir and Freundlich isotherm models indicated that the features of the adsorption process depended on the pH of the medium and the arsenic species. The results showed that the use of MgAl-LDH with incorporated nitroprusside has potential for the development of techniques for the speciation of arsenic species.
local.identifier.orcidhttps://orcid.org/0000-0003-1897-2804
local.identifier.orcidhttps://orcid.org/0000-0002-6344-3103
local.identifier.orcidhttps://orcid.org/0000-0001-7413-1087
local.identifier.orcidhttps://orcid.org/0000-0002-3627-3516
local.identifier.orcidhttps://orcid.org/0000-0002-6269-6774
local.publisher.countryBrasil
local.publisher.departmentICX - DEPARTAMENTO DE QUÍMICA
local.publisher.initialsUFMG
local.url.externahttps://www.sciencedirect.com/science/article/pii/S0021979720305269

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