Na ion-exchanged zirconium phosphate crystal with high calcium ion selectivity

We demonstrate hydrothermally grown sodium hydrogen zirconium phosphate ((Na,H)-ZrP) crystals exhibiting high calcium ion selectivity. The standard Gibbs free energies for Ca 2+ exchange on (Na,H)-ZrP and γ-type ZrP were estimated to be −10.1 and −4.69 kJ mol −1 , respectively. The high Ca 2+ select...

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Bibliographic Details
Published in:Dalton transactions : an international journal of inorganic chemistry 2024-07, Vol.53 (27), p.11252-11256
Main Authors: Hayashi, Fumitaka, Shirasu, Yuka, Fujisawa, Kazunori, Tipplook, Mongkol, Yamada, Tetsuya, Teshima, Katsuya
Format: Article
Language:English
Subjects:
Calcium ions
Ion exchange
Sodium
Zirconium
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Summary:We demonstrate hydrothermally grown sodium hydrogen zirconium phosphate ((Na,H)-ZrP) crystals exhibiting high calcium ion selectivity. The standard Gibbs free energies for Ca 2+ exchange on (Na,H)-ZrP and γ-type ZrP were estimated to be −10.1 and −4.69 kJ mol −1 , respectively. The high Ca 2+ selectivity of (Na,H)-ZrP could be attributed to the size matching between the ion exchange site of (Na,H)-ZrP and Ca 2+ . We demonstrate growth of sodium hydrogen zirconium phosphate ((Na,H)-ZrP) crystals with high Ca 2+ selectivity. This high selectivity of (Na,H)-ZrP could be attributed to the size matching between the ion exchange site of (Na,H)-ZrP and Ca 2+ .
ISSN:1477-9226
1477-9234
1477-9234
DOI:10.1039/d4dt01289e