<abstract xmlns="http://www.w3.org/1999/xhtml"><p> Salix americana willow bark is a waste arising in the process of wicker decortication that so far has not found any practical application. The bark can adsorb metal ions, because in its composition among others are phenolic groups which may be involved in the removal of metal ions from water solutions. The results of sorption of copper(II) and zinc(II) on modified willow bark of Salix americana were presented. The bark was modified with nitric and sulfuric acids at concentrations ranging from 5 to 15%. The best adsorption results were obtained using 15% nitric acid for modification. Adsorption of metal ions from aqueous solutions at concentrations raging from 20 to 100 mg/dm<sup>3</sup> was studied. It was found that an increase in the initial concentration of copper(II) and zinc(II) resulted in an increase in their adsorption on the modified cortex.</p></abstract>

Salix americana willow bark is a waste arising in the process of wicker decortication that so far has not found any practical application. The bark can adsorb metal ions, because in its composition among others are phenolic groups which may be involved in the removal of metal ions from water solutions. The results of sorption of copper(II) and zinc(II) on modified willow bark of Salix americana were presented. The bark was modified with nitric and sulfuric acids at concentrations ranging from 5 to 15%. The best adsorption results were obtained using 15% nitric acid for modification. Adsorption of metal ions from aqueous solutions at concentrations raging from 20 to 100 mg/dm3 was studied. It was found that an increase in the initial concentration of copper(II) and zinc(II) resulted in an increase in their adsorption on the modified cortex.

Modification of Salix americana willow bark for removal of heavy metal ions from aqueous solutions

Poznań University of Economics, Faculty of Commodity Science, Department of Industrial Products Quality and Ecology, Niepodległości 10, 61-875 Poznań, Poland

Polish Journal of Chemical Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Salix americana willow bark is a waste arising in the process of wicker decortication that so far has not found any practical application. The bark can adsorb...

Modification of Salix americana willow bark for removal of heavy metal ions from aqueous solutions

Publié en ligne: 11 déc. 2014

Pages: 41 - 44

DOI: https://doi.org/10.2478/pjct-2014-0067

© by Iwona Rypińska

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.