ADSORPTION OF LEAD ONTO A SILICA BASED NANOSTRUCTURED HYBRID MATERIAL CONTAINING ALUMINIUM

作者：Detcheva Albena^*; Vassileva Paunka; Georgieva Ralitsa

来源：Comptes Rendus de l Academie Bulgare des Sciences, 2011, 64(6): 815-822.

• silica based nanostructured hybrid material
• adsorption of lead ions
• adsorption equilibrium

In the present work the adsorption of lead from aqueous solutions on a novel nanostructured di-urethanesil hybrid material modified by aluminium was investigated. The adsorption properties of this material with respect to Pb(II) ions from single-component aqueous solutions and multi-component aqueous solutions containing also Cu(II), Cr(III), Cd(II) and Fe(III) were studied using the batch method. Experiments were carried out by different concentrations and acidity. In both cases the adsorption was significantly affected by the pH value. Equilibrium modelling data were fitted to linear Langmuir and Freundlich models. Best fit was observed by Langmuir model. The maximum adsorption capacities for single- and multi-component adsorption were calculated.

• 出版日期2011