Adsorption Competition between H+ and Cd2+ Ions Toward Active Sites on Ionic Imprinted Mercapto-Silica Hybrid
Adsorption process on Cd2+ionicÂ imprinted mercapto-silica hybrid materialÂ (Cd(II)-IIP HMS) has been carried out with studying an adsorption competition between ion H+ and Cd2+ ion upon active sites of Cd(II)-IIP HMS material.Â Characterization of surface material was based on specific surface area, total volume, and porous diameter.Â Cd(II)-IIP HMS material with template ionic concentration of each 0.107; 0.214; 0.429; 0.658 mmol g-1 showsÂ that adsorption modelÂ is relatively similar, the higher of H+ ion competed,Â theÂ lower of adsorption capacity of Cd(II)-IIP HMS material upon Cd2+ ion.
Keywords: adsorption, active site, mercapto-silica hybrid, ionic imprinted
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