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Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/61253
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dc.creatorJúlia Condé Vieirapt_BR
dc.creatorMariana Cristine Coelho Dinizpt_BR
dc.creatorLouise Aparecida Mendespt_BR
dc.creatorRubén Dario Sinisterra Millánpt_BR
dc.creatorGuilherme Dias Rodriguespt_BR
dc.creatorRicardo Mathias Orlandopt_BR
dc.creatorCláudia Carvalhinho Windmöllerpt_BR
dc.date.accessioned2023-11-22T15:47:44Z-
dc.date.available2023-11-22T15:47:44Z-
dc.date.issued2021-05-
dc.citation.volume15pt_BR
dc.identifier.doihttps://doi.org/10.1016/j.enmm.2020.100407pt_BR
dc.identifier.issn2215-1532pt_BR
dc.identifier.urihttp://hdl.handle.net/1843/61253-
dc.description.resumoIn this study, the apocarotenoid bixin was investigated as a potential biosorbent for Hg²+ in aqueous solutions. Bixin was used to form a thin film on an inert support using the drop-coating technique. This film was characterised using ATR-FTIR, SEM, and TGA-DTG techniques. Parameters that influence adsorption, such as pH, temperature, NaCl concentration, salt type, bixin mass, and supports for the bixin film, were evaluated. Using 0.112 mg of a bixin covering on a cellulose filter, the sorbent material was able to remove 75 % of Hg²+ from a 2.0 mL, 0.3 mg g−¹, pH 6.00, 25 °C solution after 180 min of contact. Kinetics studies were carried out between 5 and 1440 min, and the pseudo-first-order adsorption model was applied. Equilibrium isotherm data were analysed, and the best fit was for the non-linear Freundlich model, with an R² of 0.9868, RMSE of 0.37, and maximum sorption capacity of 85.38 mg g−¹ obtained by the Langmuir model. The bixin film was applied in spiked environmental samples (lake and mining effluent), and it achieved 86 % Hg²+ removal. The results show that the bixin film is a suitable alternative for efficiently removing mercury from various aqueous systems. This introduces a new class of biosorbent based on apocarotenoids, which are sustainable, low cost, nontoxic, and easily obtainable.pt_BR
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológicopt_BR
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Geraispt_BR
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superiorpt_BR
dc.languageengpt_BR
dc.publisherUniversidade Federal de Minas Geraispt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentICX - DEPARTAMENTO DE QUÍMICApt_BR
dc.publisher.initialsUFMGpt_BR
dc.relation.ispartofEnvironmental Nanotechnology, Monitoring & Managementpt_BR
dc.rightsAcesso Restritopt_BR
dc.subjectAdsorptionpt_BR
dc.subjectApocarotenoidspt_BR
dc.subjectBiosorptionpt_BR
dc.subjectHeavy metalspt_BR
dc.subjectMercurypt_BR
dc.subjectMetal removalpt_BR
dc.subject.otherQuímica analíticapt_BR
dc.subject.otherQuimica ambientalpt_BR
dc.subject.otherSorventespt_BR
dc.subject.otherAdsorçãopt_BR
dc.subject.otherMercúriopt_BR
dc.subject.otherMetais pesadospt_BR
dc.subject.otherCarotenoidespt_BR
dc.subject.otherUrucuzeiropt_BR
dc.subject.otherBiomoléculaspt_BR
dc.titleBixin as a new class of biosorbent for Hg²+ removal from aqueous solutionspt_BR
dc.typeArtigo de Periódicopt_BR
dc.url.externahttps://www.sciencedirect.com/science/article/pii/S2215153220303901pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0003-1261-060Xpt_BR
dc.identifier.orcidhttps://orcid.org/0009-0001-2939-1362pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0001-7656-1849pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-3862-1211pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0001-8843-7220pt_BR
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