2008
DOI: 10.1016/j.jhazmat.2007.11.059
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Cross-linked quaternary chitosan as an adsorbent for the removal of the reactive dye from aqueous solutions

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Cited by 137 publications
(53 citation statements)
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References 40 publications
(53 reference statements)
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“…Experimental data was tested with three kinetic models and it was best correlated by the Elovich model. The utility of cross-linked quaternary chitosan as adsorbent for the removal of Reactive Orange 16 from aqueous solutions showed that the adsorption process was independent of pH, well represented by Langmuir isotherm and a pseudosecond-order kinetic model [47]. It was found that the maximum adsorption capacity was 1,060 mg/g.…”
Section: Sorption Processmentioning
confidence: 96%
“…Experimental data was tested with three kinetic models and it was best correlated by the Elovich model. The utility of cross-linked quaternary chitosan as adsorbent for the removal of Reactive Orange 16 from aqueous solutions showed that the adsorption process was independent of pH, well represented by Langmuir isotherm and a pseudosecond-order kinetic model [47]. It was found that the maximum adsorption capacity was 1,060 mg/g.…”
Section: Sorption Processmentioning
confidence: 96%
“…39 Partial agglomerations at pH 5 because of protonation -and therefore unavailability of active adsorption sites -and intramolecular bonding and electrostatic repulsion at pH 9 where the absence of protanated amino groups in alkaline media restrains the interaction of chitosan with the negative charges of the dye can explain this apparently anomalous behavior with pH when Alizarin and Eriochrome Blue Black R adsorption are analyzed. 40 Chitosan does not adsorb Fluorescein in appreciable amounts. In solution, Fluorescein dimerizes through H-bonding in protic solvents.…”
Section: Adsorption Isothermsmentioning
confidence: 98%
“…Com o objetivo de remover o cloreto de glicidil trimetil amônio que não reagiu, o produto da reação foi precipitado em acetona. 29 e, em seguida, foi filtrado a vácuo. No intuíto de tornar o material insolúvel em meio aquoso, 25 g do cloreto de N-(2-hidroxil) propil-3-trimetil amônio quitosana foram reticuladas com 25 mL de glutaraldeído 25%, suspensos em 250 mL de álcool etílico.…”
Section: Preparação Do Cloreto De N-(2-hidroxil) Propil-3-trimetil Amunclassified
“…29,31 Uma boa correlação dos dados cinéticos comprova o possível mecanismo cinético de adsorção na fase sólida.…”
Section: Figura 5 Quantidade Adsorvida De Corante Rr120 E Rb4 Pelo Sunclassified