PENZKOFER, A and GRATZ, H and WEIDNER, P (1995) DYE SORPTION STUDIES AND SPECIFIC SURFACE DETERMINATION OF POROUS SILICATE SOL-GEL GLASSES. JOURNAL OF NON-CRYSTALLINE SOLIDS, 189 (1-2). pp. 55-65. ISSN 0022-3093,
Full text not available from this repository.Abstract
The adsorption and desorption of rhodamine 6G and oxazine 750 molecules in methanol to and from porous silicate sol-gel monoliths and pulverised samples is studied over a wide concentration region. Chemisorption and physisorption are observed. The adsorption data are fitted to a combined Langmuir and Brunauer-Emmett-Teller (BET) equation. Effective adsorbate occupation areas are obtained by investigating transparent porous Gelsil glasses of known specific surface. They are related to the dye solubility. The sorption and desorption isotherm of a self-prepared silicate xerogel is measured. Its specific surface and average pore diameter is determined.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | SPECTROSCOPY; MOLECULES; |
| Depositing User: | Dr. Gernot Deinzer |
| Last Modified: | 19 Oct 2022 08:37 |
| URI: | https://pred.uni-regensburg.de/id/eprint/52407 |
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