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Adsorption of reactive dye from an aqueous solution by chitosan: isotherm, kinetic and thermodynamic analysis.
J Hazard Mater. 2008 Mar 21; 152(1):337-46.JH

Abstract

The adsorption of Remazol black 13 (Reactive) dye onto chitosan in aqueous solutions was investigated. Experiments were carried out as function of contact time, initial dye concentration (100-300mg/L), particle size (0.177, 0.384, 1.651mm), pH (6.7-9.0), and temperature (30-60 degrees C). The equilibrium adsorption data of reactive dye on chitosan were analyzed by Langmuir and Freundlich models. The maximum adsorption capacity (qm) has been found to be 91.47-130.0mg/g. The amino group nature of the chitosan provided reasonable dye removal capability. The kinetics of reactive dye adsorption nicely followed the pseudo-first and second-order rate expression which demonstrates that intraparticle diffusion plays a significant role in the adsorption mechanism. Isotherms have also been used to obtain the thermodynamic parameters such as free energy, enthalpy and entropy of adsorption. The positive value of the enthalpy change (0.212kJ/mol) indicated that the adsorption is endothermic process. The results indicate that chitosan is suitable as adsorbent material for adsorption of reactive dye form aqueous solutions.

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Authors+Show Affiliations

Annadurai G
Graduate Institute of Environmental Engineering, National Central University, Chung-Li, 320, Taiwan, ROC.
Ling LY
No affiliation info available
Lee JF
No affiliation info available

MeSH

AdsorptionChitosanColoring AgentsHydrogen-Ion ConcentrationKineticsMicroscopy, Electron, ScanningSolutionsThermodynamicsWater

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

17686579

Citation

Annadurai, Gurusamy, et al. "Adsorption of Reactive Dye From an Aqueous Solution By Chitosan: Isotherm, Kinetic and Thermodynamic Analysis." Journal of Hazardous Materials, vol. 152, no. 1, 2008, pp. 337-46.
Annadurai G, Ling LY, Lee JF. Adsorption of reactive dye from an aqueous solution by chitosan: isotherm, kinetic and thermodynamic analysis. J Hazard Mater. 2008;152(1):337-46.
Annadurai, G., Ling, L. Y., & Lee, J. F. (2008). Adsorption of reactive dye from an aqueous solution by chitosan: isotherm, kinetic and thermodynamic analysis. Journal of Hazardous Materials, 152(1), 337-46.
Annadurai G, Ling LY, Lee JF. Adsorption of Reactive Dye From an Aqueous Solution By Chitosan: Isotherm, Kinetic and Thermodynamic Analysis. J Hazard Mater. 2008 Mar 21;152(1):337-46. PubMed PMID: 17686579.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Adsorption of reactive dye from an aqueous solution by chitosan: isotherm, kinetic and thermodynamic analysis. AU - Annadurai,Gurusamy, AU - Ling,Lai Yi, AU - Lee,Jiunn-Fwu, Y1 - 2007/07/10/ PY - 2007/02/18/received PY - 2007/07/02/revised PY - 2007/07/03/accepted PY - 2007/8/10/pubmed PY - 2008/7/3/medline PY - 2007/8/10/entrez SP - 337 EP - 46 JF - Journal of hazardous materials JO - J Hazard Mater VL - 152 IS - 1 N2 - The adsorption of Remazol black 13 (Reactive) dye onto chitosan in aqueous solutions was investigated. Experiments were carried out as function of contact time, initial dye concentration (100-300mg/L), particle size (0.177, 0.384, 1.651mm), pH (6.7-9.0), and temperature (30-60 degrees C). The equilibrium adsorption data of reactive dye on chitosan were analyzed by Langmuir and Freundlich models. The maximum adsorption capacity (qm) has been found to be 91.47-130.0mg/g. The amino group nature of the chitosan provided reasonable dye removal capability. The kinetics of reactive dye adsorption nicely followed the pseudo-first and second-order rate expression which demonstrates that intraparticle diffusion plays a significant role in the adsorption mechanism. Isotherms have also been used to obtain the thermodynamic parameters such as free energy, enthalpy and entropy of adsorption. The positive value of the enthalpy change (0.212kJ/mol) indicated that the adsorption is endothermic process. The results indicate that chitosan is suitable as adsorbent material for adsorption of reactive dye form aqueous solutions. SN - 0304-3894 UR - https://www.unboundmedicine.com/medline/citation/17686579/Adsorption_of_reactive_dye_from_an_aqueous_solution_by_chitosan:_isotherm_kinetic_and_thermodynamic_analysis_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0304-3894(07)00984-3 DB - PRIME DP - Unbound Medicine ER -