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Membranes obtained on the basis of cellulose acetate and their use in removal of metal ions from liquid phase Cover

Membranes obtained on the basis of cellulose acetate and their use in removal of metal ions from liquid phase

Open Access
|Jun 2016

Abstract

The polymer membranes containing 18 wt% of cellulose acetate and different amounts of polyvinylpyrrolidone (PVP) as a cross-linker agent were used in the process of iron and copper ions removal from liquid phase. Depending on the content of PVP (changed from 1 to 4 wt.%) the membrane surfaces were characterised by different hydrophilic character and showed the dominant presence of surface oxygen-containing groups of acidic character. Irrespectively of the concentrations of solvents from which the metal ions had to be removed, the membranes showed better ability to remove Fe3+ ions than Cu2+ ones, and the membrane resistances decreased with increasing content of PVP. After the filtrations of solutions with iron ions the flux recovery ratio took rather high values; this ratio increased with increasing PVP content in the membrane.

Language: English
Page range: 104 - 110
Published on: Jun 30, 2016
Published by: West Pomeranian University of Technology, Szczecin
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2016 Joanna Krason, Robert Pietrzak, published by West Pomeranian University of Technology, Szczecin
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.