Synthesis and application of sugarcane bagasse cellulose mixed esters. Part II : removal of Co2+ and Ni2+ from single spiked aqueous solutions in batch and continuous mode.

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dc.contributor.authorAlmeida, Francine Tatiane Rezende de
dc.contributor.authorCarvalho, Megg Madonyk Cota Elias
dc.contributor.authorXavier, Amália Luísa Pedrosa
dc.contributor.authorFerreira, Gabriel Max Dias
dc.contributor.authorSilva, Isabela Almeida
dc.contributor.authorFilgueiras, Jefferson Gonçalves
dc.contributor.authorAzevedo, Eduardo Ribeiro de
dc.contributor.authorSilva, Luís Henrique Mendes da
dc.contributor.authorGil, Laurent Frédéric
dc.contributor.authorGurgel, Leandro Vinícius Alves
dc.date.accessioned2020-06-10T13:37:24Z
dc.date.available2020-06-10T13:37:24Z
dc.date.issued2019
dc.description.abstractSugarcane bagasse cellulose succinate trimellitate (SBST) was prepared by a one-pot synthesis method. The synthesis of this novel mixed ester was investigated by a 23-factorial design. The parameters investigated were time, temperature, and succinic anhydride mole fraction (χSA). The responses evaluated were the adsorption capacity (qCo2+ and qNi2+), weight gain (wg), and number of carboxylic acid groups (nT,COOH). 13C Multiple Cross-Polarization solid-state NMR spectroscopy, 1H NMR relaxometry, and Fourier-transform infrared spectroscopy were used to elucidate the SBST structure. The best SBST reaction conditions were 100 °C, 660 min, and χSA of 0.2, which yielded SBST with a wg of 57.1%, nT,COOH of 4.48 mmol g−1, and qCo2+ and qNi2+ of 0.900 and 0.963 mmol g−1, respectively. The maximum adsorption capacities (Qmax) (pH 5.75, 25 °C) estimated by the Redlich-Peterson model for Co2+ and Ni2+ were 1.16 and 1.29 mmol g−1. The ΔadsH° values for Co2+ and Ni2+ adsorption obtained by isothermal titration calorimetry were 8.03 and 6.94 kJ mol−1. Regeneration and reuse of SBST were investigated and the best conditions applied for fixed-bed column adsorption in five consecutive cycles. SBST was fully desorbed and Qmax values for Co2+ (0.95 mmol g−1) and Ni2+ (1.02 mmol g−1) were estimated using the Bohart-Adams model.pt_BR
dc.identifier.citationALMEIDA, F. T. R. et al. Synthesis and application of sugarcane bagasse cellulose mixed esters. Part II: removal of Co2+ and Ni2+ from single spiked aqueous solutions in batch and continuous mode. Journal of Colloid and Interface Science, v. 552, p. 337-350, set. 2019. Disponível em:<https://www.sciencedirect.com/science/article/pii/S0021979719306022>. Acesso em: 10 fev. 2020.pt_BR
dc.identifier.doihttps://doi.org/10.1016/j.jcis.2019.05.046pt_BR
dc.identifier.issn0021-9797
dc.identifier.urihttp://www.repositorio.ufop.br/handle/123456789/12328
dc.identifier.uri2https://www.sciencedirect.com/science/article/pii/S0021979719306022pt_BR
dc.language.isoen_USpt_BR
dc.rightsrestritopt_BR
dc.subjectSugarcane bagasse mixed esterpt_BR
dc.subject13C multiple cross-polarization solid-statept_BR
dc.subjectNickelpt_BR
dc.subjectCobaltpt_BR
dc.titleSynthesis and application of sugarcane bagasse cellulose mixed esters. Part II : removal of Co2+ and Ni2+ from single spiked aqueous solutions in batch and continuous mode.pt_BR
dc.typeArtigo publicado em periodicopt_BR
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