Synthesis and application of a new carboxylated cellulose derivative. Part I : removal of Co2+, Cu2+ and Ni2+ from monocomponent spiked aqueous solution.

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dc.contributor.authorTeodoro, Filipe Simões
dc.contributor.authorRamos, Stela Nhandeyara do Carmo
dc.contributor.authorElias, Megg Madonyk Cota
dc.contributor.authorMageste, Aparecida Barbosa
dc.contributor.authorFerreira, Gabriel Max Dias
dc.contributor.authorSilva, Luis Henrique Mendes da
dc.contributor.authorGil, Laurent Frédéric
dc.contributor.authorGurgel, Leandro Vinícius Alves
dc.date.accessioned2018-03-13T13:57:40Z
dc.date.available2018-03-13T13:57:40Z
dc.date.issued2016
dc.description.abstractA new carboxylated cellulose derivative (CTA) was prepared from the esterification of cellulose with 1,2, 4-Benzenetricarboxylic anhydride. CTA was characterized by percent weight gain (pwg), amount of carboxylic acid groups (nCOOH), elemental analysis, FTIR, TGA, solid-state 13C NMR, X-ray diffraction (DRX), specific surface area, pore size distribution, SEM and EDX. The best CTA synthesis condition yielded a pwg and nCOOH of 94.5% and 6.81 mmol g 1, respectively. CTA was used as an adsorbent material to remove Co2+, Cu2+ and Ni2+ from monocomponent spiked aqueous solution. Adsorption studies were developed as a function of the solution pH, contact time and initial adsorbate concentration. Langmuir model better fitted the experimental adsorption data and the maximum adsorption capacities estimated by this model were 0.749, 1.487 and 1.001 mmol g 1 for Co2+, Cu2+ and Ni2+, respectively. The adsorption mechanism was investigated by using isothermal titration calorimetry. The values of DadsH were in the range from 5.36 to 8.09 kJ mol 1, suggesting that the mechanism controlling the phenomenon is physisorption. Desorption and re-adsorption studies were also performed. Desorption and re-adsorption efficiencies were closer to 100%, allowing the recovery of both metal ions and CTA adsorbent.pt_BR
dc.identifier.citationTEODORO, F. S. et al. Synthesis and application of a new carboxylated cellulose derivative. Part I: removal of Co2+, Cu2+ and Ni2+ from monocomponent spiked aqueous solution. Journal of Colloid and Interface Science, v. 483, p. 185-200, dez. 2016. Disponível em: <http://www.sciencedirect.com/science/article/pii/S0021979716305537>. Acesso em: 15 set. 2017.pt_BR
dc.identifier.doihttps://doi.org/10.1016/j.jcis.2016.08.004
dc.identifier.issn0021-9797
dc.identifier.urihttp://www.repositorio.ufop.br/handle/123456789/9598
dc.language.isoen_USpt_BR
dc.rightsabertopt_BR
dc.rights.licenseO periódico Journal of Colloid and Interface Science concede permissão para depósito deste artigo no Repositório Institucional da UFOP. Número da licença: 4210810074346.pt_BR
dc.subjectAdsorptionpt_BR
dc.subjectThermodynamicspt_BR
dc.subjectDesorptionpt_BR
dc.subjectIsothermal titration calorimetrypt_BR
dc.titleSynthesis and application of a new carboxylated cellulose derivative. Part I : removal of Co2+, Cu2+ and Ni2+ from monocomponent spiked aqueous solution.pt_BR
dc.typeArtigo publicado em periodicopt_BR
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