Abstract
The preferential adsorption of one component of a binary system into the inner surfaces of mesoporous silica glass was investigated at temperatures close to liquid/liquid phase separation. Three controlled pore glass materials of different mean pore sizes were used to analyze the confinement effect on adsorption. Strong preferential adsorption of water was found to take place in an experimental system that exhibited an upper miscibility gap. The area-related surface excess amount of water was also observed to decrease with decreasing pore size in the strong adsorption regime, while the shift in the volume-related mean composition of the pore liquid showed an opposite trend.
| Original language | English |
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| Pages (from-to) | 11864-11873 |
| Number of pages | 10 |
| Journal | Journal of Chemical Physics |
| Volume | 120 |
| Issue number | 24 |
| DOIs | |
| State | Published - Jun 22 2004 |
| Externally published | Yes |