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- W2024155100 abstract "To utilize the contribution of introduced amino groups to the adsorption of an anionic dye (eosin Y), a batch adsorption system was applied to study the adsorption of eosin Y from aqueous solution by tetraethylenepentamine (TEPA) modified chitosan (TEPA-CS). Experiments were carried out as a function of particle size, initial pH, agitation rate, adsorbent dosage, agitation period, temperature and initial concentration of eosin Y. The Langmuir and Freundlich models were used to fit the adsorption isotherms. From the values of correlation coefficients (R2), it was observed that the experimental data fit very well to the Langmuir model, giving a maximum sorption capacity of 292.4mg/g at 298K. Kinetic studies showed that the kinetic data were well described by the pseudo-second-order kinetic model. The thermodynamic study revealed negative value of enthalpy change (ΔH°) and free energy change (ΔG°), indicating spontaneous and endothermic nature of the adsorption of eosin Y on to TEPA-CS." @default.
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- W2024155100 date "2011-07-01" @default.
- W2024155100 modified "2023-10-18" @default.
- W2024155100 title "Chemical modification of chitosan by tetraethylenepentamine and adsorption study for anionic dye removal" @default.
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- W2024155100 doi "https://doi.org/10.1016/j.carres.2011.04.012" @default.
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