Modification of solids with volatile organics III: Natural zeolites |
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Authors: | M M Kope?ni J J ?omor M Todorovi? |
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Institution: | (1) Chemical Dynamics Laboratory, the Boris Kidrič Institute of Nuclear Sciences, P. O. Box 522, YU-11001 Belgrade, Yugoslavia |
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Abstract: | Summary The effect of pre-adsorbed benzene and ethanol on the adsorptive properties of natural zeolite (clinoptilolite) has been studied
by gas-solid chromatography. It has been shown that modification of the solid surface by volatile organics has a significant
influence on the adsorptive properties. The modification is of the same order as the more difficult modification by inorganics,
as illustrated here by clinoptilolite modification with Co2+. Energy distribution of surface adsorptive sites appears to be continuous and confirms previous finding that only a small
proportion of active sites is responsible for most adsorbate retention.
Part II reference 4] |
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Keywords: | Gas-solid chromatography Natural zeolites — clinoptilolite Surface modification Adsorption isotherms Surface heterogeneity |
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