Shape-selective adsorption of aromatic molecules from water by tetramethylammonium-smectite
Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases
By: J. Lee, M.M. Mortland, S.A. Boyd, and C. T. Chiou
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Abstract
The adsorption of aromatic compounds by smectite exchanged with tetramethylammonium (TMA) has been studied. Aromatic compounds adsorbed by TMA-smectite are assumed to adopt a tilted orientation in a face-to-face arrangment with the TMA tetrahedra. The sorptive characteristics of TMA-smectite were influenced strongly by the presence of water. The dry TMA-smectite showed little selectivity in the uptake of benzen, toluene and xylene. In the presence of water, TMA-smectite showed a high degree of selectivity based on molecular size/shape, resulting in high uptake of benzene and progressively lower uptake of larger aromatic molecules. This selectivity appeared to result from the shrinkage of interlamellar cavities by water.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Shape-selective adsorption of aromatic molecules from water by tetramethylammonium-smectite |
| Series title | Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases |
| DOI | 10.1039/F19898502953 |
| Volume | 85 |
| Issue | 9 |
| Year Published | 1989 |
| Language | English |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases |
| First page | 2953 |
| Last page | 2962 |
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