The Fate of Gd(III) Sorption by Novel Microporous Chelating Resin | ||||
| Egyptian Journal of Chemistry | ||||
| Volume 66, Issue 9, September 2023, Page 215-230 PDF (1.47 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ejchem.2022.174488.7191 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
Ola alzanaty badr  1; Sameh othman2; mamdouh abo-mesalam2; Azza Ezzaldin3; Tahani kashar4; Ahmed Soliman2
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| 1Nuclear fuel technology department, Hot laboratories center, Egyptian Atomic Energy Authority | ||||
| 2Egyptian Atomic Energy Authority | ||||
| 3Egyptian Atomic energy Authority | ||||
| 4menoufia univeristy | ||||
| Abstract | ||||
| Sorption of Gd(III) by a novel microporous chelating resin Hp-8 from aqueous solutions is investigated in this studyat different operating conditions. Characterization of Hp-8 was investigated. Solution pH hada dramatic influence on the uptake in batch process. It was found that pH 2.5 was the best one at the present experimental set. The equilibrium sorption data were fitted to different isotherm models and it is found that both Freundlich and D-R models were able to accurately represent the findings. Based on the D-R isotherm data, the employed resin exhibited maximum adsorption capacity of about 51 mg/g. The three thermodynamic parameters for the present process of adsorption were estimated with values of enthalpy ∆Ho = - 4.473x10-3, an entropy ∆So = 0.013 and Gibbs free energy ∆Go = - 3.878, - 4.138, - 4.268 at 298, 318, 3280K respectively. Regeneration studies showed that the present resin is effectively applied for sorption of Gd(III) upto 5 cycles | ||||
| Keywords | ||||
| Gadolinium separation; Microporous chelating resin; Adsorption; desorption | ||||
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