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| Content Provider | Springer Nature Link |
|---|---|
| Author | Aprea, P. Caputo, D. Gargiulo, N. Gennaro, B. Iucola, F. Liguori, B. Colella, C. |
| Copyright Year | 2014 |
| Abstract | The ion-exchange properties of a synthetic hydrosodalite (Na-hS) have been investigated by kinetic and thermodynamic analysis of exchange reactions of the original sodium form for lithium, potassium and calcium forms. Kinetic curves, modelled by a Langmuir-type equation, revealed that exchange rate for lithium and for potassium are of the same order, whereas they are two order faster than for calcium. Thermodynamic analysis of the cation exchange isotherms pointed out that sodalite is selective for sodium over the other three cationic forms examined, which is consistent with the preference exhibited by the sodalite type for sodium environments, either in natural or in laboratory crystallization. Na/Li and Na/Ca exchanges are incomplete, whereas unexpectedly Na/K exchange turns out to be complete, even though K$^{+}$ dimension exceeds the width of the access window to sodalite cages. The obtained results have been discussed in terms of Eisenman–Sherry theory, pointing out agreements and discrepancies. |
| Starting Page | 643 |
| Ending Page | 651 |
| Page Count | 9 |
| File Format | |
| ISSN | 13802224 |
| Journal | Journal of Porous Materials |
| Volume Number | 21 |
| Issue Number | 5 |
| e-ISSN | 15734854 |
| Language | English |
| Publisher | Springer US |
| Publisher Date | 2014-04-27 |
| Publisher Place | Boston |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Hydrosodalite Hydroxysodalite Cation exchange kinetics Cation exchange isotherms Catalysis Characterization and Evaluation of Materials Physical Chemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Mechanics of Materials Materials Science Mechanical Engineering |
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