Shape-selective adsorption of aromatic molecules from water by tetramethylammonium-smectite

Jiunn Fwu Lee, Max M. Mortland, Stephen A. Boyd, Cary T. Chiou

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159 引文 斯高帕斯(Scopus)


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.

頁(從 - 到)2953-2962
期刊Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases
出版狀態Published - 1989

All Science Journal Classification (ASJC) codes

  • 一般化學


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