<?xml version='1.0' encoding='utf-8'?>
<oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
  <dc:contributor>M.M. Mortland</dc:contributor>
  <dc:contributor>S.A. Boyd</dc:contributor>
  <dc:contributor>C. T. Chiou</dc:contributor>
  <dc:creator>J. Lee</dc:creator>
  <dc:date>1989</dc:date>
  <dc:description>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.</dc:description>
  <dc:format>application/pdf</dc:format>
  <dc:identifier>10.1039/F19898502953</dc:identifier>
  <dc:language>en</dc:language>
  <dc:title>Shape-selective adsorption of aromatic molecules from water by tetramethylammonium-smectite</dc:title>
  <dc:type>article</dc:type>
</oai_dc:dc>