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The adsorption characteristics and porous structure of bentonite adsorbents as determined from the adsorption isotherms of benzene vapor


Author(s) : STOJANOVSKA LEPA VASA BOSEVSKA DONCO BUREVSKI BILJANA PANOVA BILJANA MARINA SNEZANA BREZOVSKA, 
Publisher : N/A
Publication Date : 2004
ISSN : N/A
Abstract : The adsorption of benzene vapor on natural and acid activated bentonites was treated by the theory of volume filling of micropores. The micropore volume and characteristic values of the free energy of adsorption were determined from the adsorption isotherms. The Dubininآ–Radushkevishآ–Stoeckli and Dubininآ–Astakhov equations were used for this purpose. The results showed that natural bentonite has a more homogeneous micropore structure than the acid activated ones. The characteristic values of the free energy of adsorption for the natural bentonite were higher than those of the acid activated bentonite. This is due to differences in its structure and the pore size.,