ADSORPTION BEHAVIOR OF MWAR TOWARD GD(III) IN AQUEOUS SOLUTION

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CHUNHUA X.; CAIPING Y.

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ISSN: 2588-4824

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Journal: Iranian Journal of Chemistry and Chemical Engineering Year:2010 | Volume:29 | Issue:2 Page(s): 59-66

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Title

ADSORPTION BEHAVIOR OF MWAR TOWARD GD(III) IN AQUEOUS SOLUTION

Author(s)

CHUNHUA X. | CAIPING Y. | Issue Writer Certificate

Keywords

MACROPOROUS WEAK ACID RESIN (MWAR)

GD(III)

THERMODYNAMICS

KINETICS

ADSORPTION

Abstract

had been examined. Experimental data were exploited for kinetic and thermodynamic evaluations related to the ADSORPTION processes. ADSORPTION isotherms were attempted to be obtained the model parameters at different temperature and to be fitted better to Langmuir model than to Freundlich model within the studied concentration range. The maximum ADSORPTION capacity of Gd(III) ion on MWAR was 384 mg/g at 298 K, calculated from Langmuir model. The apparent activation energy was Ea=18.0 kJ/mol and ADSORPTION rate constant was k298=1.22x10-5 s-1, respectively. Thermodynamic parameters such as changes in the enthalpy (HDH), entropy (DS) and Gibb’s free energy (DG) indicated that Gd(III) ion ADSORPTION by MWAR was an endothermic and spontaneous process in nature, and more favorable ADSORPTION was obversed when the ambient temperature was high Gd(III) can be eluted with the composition of 0.5mol/L HCl and 0.5 mol/L NaCl solution.

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APA: Copy

CHUNHUA, X., & CAIPING, Y.. (2010). ADSORPTION BEHAVIOR OF MWAR TOWARD GD(III) IN AQUEOUS SOLUTION. IRANIAN JOURNAL OF CHEMISTRY AND CHEMICAL ENGINEERING (IJCCE), 29(2), 59-66. SID. https://sid.ir/paper/557184/en

Vancouver: Copy

CHUNHUA X., CAIPING Y.. ADSORPTION BEHAVIOR OF MWAR TOWARD GD(III) IN AQUEOUS SOLUTION. IRANIAN JOURNAL OF CHEMISTRY AND CHEMICAL ENGINEERING (IJCCE)[Internet]. 2010;29(2):59-66. Available from: https://sid.ir/paper/557184/en

IEEE: Copy

X. CHUNHUA, and Y. CAIPING, “ADSORPTION BEHAVIOR OF MWAR TOWARD GD(III) IN AQUEOUS SOLUTION,” IRANIAN JOURNAL OF CHEMISTRY AND CHEMICAL ENGINEERING (IJCCE), vol. 29, no. 2, pp. 59–66, 2010, [Online]. Available: https://sid.ir/paper/557184/en

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