In order to evaluate the influence that structural and/or chemical inconsistencies exert over clinoptilolite behavior as an ion exchanger, a study has been performed aiming to compare the cation exchange properties of three different clinoptilolite-rich tuffs. Equilibrium data have been collected on two samples, coming from a Greek site and a Turkish site and having a similar framework chemistry. Exchange isotherms have been determined for some cation pairs of interest for practical applications and the related thermodynamic quantities calculated. The results, which have been compared with previously published data on a clinoptilolite sample from Sardinia (Italy), have shown analogous but not identical behaviors, possibly due to modest but not negligible differences in zeolite structure and/or original chemistry.

Effectiveness of clinoptilolite in removing toxic cations from water: a comparative study

DE GENNARO, BRUNO;COLELLA, ABNER;CAPPELLETTI, PIERGIULIO;DE GENNARO, MAURIZIO;COLELLA, CARMINE
2005

Abstract

In order to evaluate the influence that structural and/or chemical inconsistencies exert over clinoptilolite behavior as an ion exchanger, a study has been performed aiming to compare the cation exchange properties of three different clinoptilolite-rich tuffs. Equilibrium data have been collected on two samples, coming from a Greek site and a Turkish site and having a similar framework chemistry. Exchange isotherms have been determined for some cation pairs of interest for practical applications and the related thermodynamic quantities calculated. The results, which have been compared with previously published data on a clinoptilolite sample from Sardinia (Italy), have shown analogous but not identical behaviors, possibly due to modest but not negligible differences in zeolite structure and/or original chemistry.
File in questo prodotto:
File Dimensione Formato  
St.Surf.Sci. Cat. 2005.pdf

non disponibili

Tipologia: Documento in Post-print
Licenza: Accesso privato/ristretto
Dimensione 582.18 kB
Formato Adobe PDF
582.18 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/307924
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact