δείτε την πρωτότυπη σελίδα τεκμηρίου στον ιστότοπο του αποθετηρίου του φορέα για περισσότερες πληροφορίες και για να δείτε όλα τα ψηφιακά αρχεία του τεκμηρίου*
On the pH-dependent strontium adsorption by Al-PILCs, impregnated with carboxylate groups of various acid strengths
(EN)
Gangas, N-H. J.
Assimakopoulos, P. A.
Papachristodoulou, C. A.
The impregnation of a PILC with carboxylate groups is proposed as a means to improve the adsorption properties of the material for strontium ions. The role of solution pH and carboxylate acid strength in the functionalization of the organic groups is probed by base titrations. In comparing the pristine-PILC with PILCs carrying either oxalate or acetate impregnates, enhanced strontium uptake is evidenced by the modified solids, initiated at pH 6 and 8 in the presence of oxalate and acetate, respectively. The effect on uptake is higher in the former case, amounting to an increase in strontium adsorption by a factor between two and three, depending on the pH range. To further elucidate the significance of the carboxylate acid strength in cation uptake phenomena, strontium adsorption isotherms are presented for PILCs carrying acetate, oxalate, malonate and citrate groups. The results demonstrate that, at constant pH, adsorption increases with increasing acid strength
(EN)
Annual Symposium of the Hellenic Nuclear Physics Society; Τόμ. 11 (2002): HNPS2000 and HNPS2002
(EL)
HNPS Advances in Nuclear Physics; Vol. 11 (2002): HNPS2000 and HNPS2002
(EN)
Πνευματική ιδιοκτησία (c) 2019 C. A. Papachristodoulou, P. A. Assimakopoulos, N-H. J. Gangas
(EL)
*Η εύρυθμη και αδιάλειπτη λειτουργία των διαδικτυακών διευθύνσεων των συλλογών (ψηφιακό αρχείο, καρτέλα τεκμηρίου στο αποθετήριο) είναι αποκλειστική ευθύνη των αντίστοιχων Φορέων περιεχομένου.
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