| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 74963 | Microporous and Mesoporous Materials | 2012 | 10 Pages |
We are developing a system that selects the optimal combination of zeolite and solvent for liquid chromatography. As the first stage of system development, a database of solute sorption amounts for various combinations of zeolites and solvents was constructed. The sorption capacity of zeolites was considered according to four aspects: zeolite structure, compensation cation type, Si/Al ratio, and solute material group. As for zeolite structure, solute sorption was strongest for ∗BEA zeolite among the three examined zeolite types (Y, ∗BEA, and mordenite). As for the compensation cation type of a zeolite, sorption strength increased in the sequence H > Na > K among the three investigated cation types. Sorption was found not to depend on the Si/Al ratio because of the stronger effects of zeolite structure and solvent properties. Lastly, in regard to the solute material group, no dependence was found on the investigated zeolite characteristics; the higher the polarity of the solute and the lower polarity of the solvent, the higher was the sorption strength of the solute.
Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Zeolite adsorption capacity was considered according to four aspects. ► Solute adsorption was strongest for ∗BEA zeolite among Y, ∗BEA, and mordenite. ► Adsorption was stronger in the sequence H > Na > K of zeolite cation type. ► Adsorption did not depend on Si/Al ratio. ► Higher solute polarity, lower solvent polarity gave stronger solute adsorption.
