Jan 1, 2001 · Aspects of ion exchange in zeolites are reviewed, with special reference to those properties of zeolites which give rise to characteristic, and sometimes unique, ion exchange behaviour.

Jan 1, 2001 · Aspects of ion exchange in zeolites are reviewed, with special reference to those properties of zeolites which give rise to characteristic, and sometimes unique, ion exchange behaviour.

Jan 1, 2007 · If the zeolite is contacted with a series of isonormal solutions, constituted from differing proportions of the ingoing and counter cations, an ion exchange isotherm can be constructed at a standard condition of temperature and pressure, to yield the distribution of cations between zeolite and solution phases when equilibrium has been reached ...

Ion-exchange modified zeolites X for selective adsorption desulfurization from Claus tail gas: Experimental and computational investigations. Microporous and Mesoporous Materials 2018, 261 , 227-236. https://doi.org/10.1016/j.micromeso.2017.11.014

Oct 10, 2019 · In this study, we present further details of ion exchange mechanisms for zeolite N based on exchange of monovalent cations inside a zeolite N membrane, as well as the relative performance of Li +, Ca 2+ and Mg 2+ cations. We explore ion retention within a zeolite N membrane along different crystallographic directions, [001] and [110], as well ...

Aug 13, 2015 · Ion-exchange properties of zeolites are connected with the presence of non-compensated negative charges and the presence of surface functional groups in crystalline lattice discontinuity points. This is a reversible process accompanied by the formation of weak bonds between the zeolite and metal ions (van der Waals bonds) [ 20 ].

Aug 21, 2024 · In this study, the ion exchange behavior between Na-form zeolites with different framework topologies and Cs-containing aqueous solutions was analyzed, and the equilibrium constant was calculated based on the Langmuir type equation to investigate the influence of the chemical nature of the zeolite framework on ion selectivity.

Jan 1, 2005 · The exchange between a cation A Z A, initially in solution (the ingoing ion), and a cation B Z B, initially in the zeolite (the out-going or counter ion) can be written as: (1) Z B A Z A + Z A B ¯ Z B ↔ Z B A ¯ Z A + Z A B Z B

Mar 7, 2022 · In particular, zeolites Na-A and Na-X can exchange their sodium ions with “hard water ions”, such as calcium and magnesium 20. It has been also demonstrated that a synergistic effect can be ...

Oct 19, 2022 · Ion exchange of aluminosilicate materials allows us to modify their acid–base, redox, and textural properties (pore sizes and interaction with adsorbates). It is usually performed in an aqueous solution with a high concentration of the cationic species to be exchanged.