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Clay-Organic Complexes as Adsorbents for Phenol and Chlorophenols

Published online by Cambridge University Press:  02 April 2024

Max M. Mortland ,
Sun Shaobai  and
Stephen A. Boyd
Max M. Mortland
Affiliation:
Department of Crop and Soil Sciences, Michigan State University, East Lansing, Michigan 48824
Sun Shaobai*
Affiliation:
Department of Crop and Soil Sciences, Michigan State University, East Lansing, Michigan 48824
Stephen A. Boyd
Affiliation:
Department of Crop and Soil Sciences, Michigan State University, East Lansing, Michigan 48824
*
2Visiting scientist, Sichuan Agricultural University, People's Republic of China.
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Abstract

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Several clay-organic complexes were synthesized by placing quaternary ammonium cations on smectite by cation exchange. They were then examined for their ability to adsorb phenol and several of its chlorinated congeners. The organic cations used were: hexadecylpyridinium (HDPY+), hexadecyltri-methyl ammonium (HDTMA+), trimethylphenyl ammonium (TMPA), and tetramethylammonium (TMA+). The complexes containing long-chain alkyl (hexadecyl) groups were the most hydrophobic and adsorbed the phenols from water in proportion to their hydrophobicities, which increase with chlorine addition (phenol < chlorophenol < dichloropohenol < trichlorophenol). With n-hexane as the solvent, different adsorption was found which depended on the type and degree of solvent interactions with the compound and the clay-organic complex. Thus, the amount of adsorption of these phenols on clay-organic complexes was dependent on the relative energies of adsorbent-adsorbate and adsorbate-solvent interactions.

Keywords

AdsorptionChlorophenolsHydrophobicityOrgano claysPhenolSmectite
Type
Research Article
Information
Clays and Clay Minerals , Volume 34 , Issue 5 , October 1986 , pp. 581 - 585
Copyright
Copyright © 1986, The Clay Minerals Society

Footnotes

1

Contribution of the Michigan Agricultural Experiment Station, East Lansing, Michigan 48824, Journal Article No. 11972.

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