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Development and characterization of organically grafted clay minerals for the removal of methylene blue from water

2024Artigo científico Acesso restrito
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datacite.subject.fosCiências Naturais::Ciências da Terra e do Ambiente
datacite.subject.fosCiências Naturais::Ciências Biológicas
datacite.subject.sdg06:Água Potável e Saneamento
datacite.subject.sdg03:Saúde de Qualidade
datacite.subject.sdg04:Educação de Qualidade
dc.contributor.authorSerikbayeva, Aizhan M.
dc.contributor.authorRoman, Fernanda F.
dc.contributor.authorGomes, Helder T.
dc.contributor.authorKalmakhanova, Marzhan S.
dc.date.accessioned2026-02-10T15:44:01Z
dc.date.available2026-02-10T15:44:01Z
dc.date.issued2024
dc.description.abstractIn recent years, water pollution caused by industrial waste has been a major problem throughout the world. To remove harmful impurities from water, using methylene blue (MB) as a model compound, modified clays were used, as they are capable of adsorbing various substances on their surfaces. The modified clays were obtained by grafting dimethyl sulfoxide (DMSO) and triethanolamine (TEOA) in the space between the layers of Shymkent clay. DMSO was first added to the natural clay; TEOA was also added at a temperature of 180°C and then held at that temperature for 2 h. The resulting modified clays were dried at 60°C for 24 h and characterized by X-ray diffraction (XRD), surface area analysis (SAA), Fourier-transform infrared spectroscopy (FT-IR), elemental analysis, and thermogravimetric analysis (DTA and TGA). Natural and modified clays (0.25–2.5 g L–1, pH=1–12, and 50°C) were used to adsorb MB from an aqueous solution at a concentration of 50 mg L–1. Contact with the adsorbent was maintained for 8 h. As much as 95.9% of the MB was removed from the aqueous solution in as little time as 15 min. Adsorption conditions were optimized, and the clay modified with TEAO showed better results than the natural clay (85% for modified clay vs 40% for original clay, at a clay concentration of 0.5 g L–1); significant adsorption was obtained over a wide pH range (>85% from pH 1 to 12).eng
dc.description.sponsorshipThis research was funded by the Science Committee of the Ministry of Education and Science of the Republic of Kazakhstan (grant no. AP13067715) and by Base Funding of CIMO (UIDB/00690/2020) through FEDER under Program PT2020.
dc.identifier.citationSerikbayeva, Aizhan M.; Roman, Fernanda F.; Gomes, Helder T.; Kalmakhanova, Marzhan S. (2024). Development and characterization of organically grafted clay minerals for the removal of methylene blue from water. Clays and Clay Minerals. ISSN 0009-8604. 72, p. 1-10
dc.identifier.doi10.1017/cmn.2024.34
dc.identifier.issn0009-8604
dc.identifier.issn1552-8367
dc.identifier.urihttp://hdl.handle.net/10198/35704
dc.language.isoeng
dc.peerreviewedyes
dc.publisherCambridge University Press
dc.relationMountain Research Center
dc.relation.ispartofClays and Clay Minerals
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectAdsorption
dc.subjectDimethyl sulfoxide
dc.subjectMethylene blue
dc.subjectOrganoclays
dc.subjectTriethanolamine
dc.titleDevelopment and characterization of organically grafted clay minerals for the removal of methylene blue from watereng
dc.typejournal article
dspace.entity.typePublication
oaire.awardNumberUIDB/00690/2020
oaire.awardTitleMountain Research Center
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00690%2F2020/PT
oaire.citation.endPage10
oaire.citation.startPage1
oaire.citation.titleClays and Clay Minerals
oaire.citation.volume72
oaire.fundingStream6817 - DCRRNI ID
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameRoman
person.familyNameGomes
person.givenNameFernanda F.
person.givenNameHelder T.
person.identifier.ciencia-idEE1B-DAA7-D0BD
person.identifier.ciencia-id6218-1E19-13EE
person.identifier.orcid0000-0001-5360-5298
person.identifier.orcid0000-0001-6898-2408
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
relation.isAuthorOfPublicationc145030b-c811-4be4-b6af-1926e364cb33
relation.isAuthorOfPublication0eb96337-224a-4339-9918-334436fbbb99
relation.isAuthorOfPublication.latestForDiscoveryc145030b-c811-4be4-b6af-1926e364cb33
relation.isProjectOfPublication29718e93-4989-42bb-bcbc-4daff3870b25
relation.isProjectOfPublication.latestForDiscovery29718e93-4989-42bb-bcbc-4daff3870b25

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