Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5210441 | Reactive and Functional Polymers | 2012 | 7 Pages |
Abstract
In this paper, a new boron chelating chitosan based polymer with multi-hydroxyl iminobis (propylene glycol) (IBPG) functions was prepared. A cross-linked chitosan (CCTS) with 2.70 mmol gâ1 amine content was modified with excess amount of glycidol at pH 7 and boron chelating resin with IBPG functions (4.60 mmol gâ1) was obtained. The boron chelating ability of the resulting resin was investigated under different experimental conditions (pH, foreign ions). This prepared material was evaluated by FT-IR spectra and UV spectra analysis. The IBPG modified CCTS resin was demonstrated to have a boron loading capacity of 2.2 ± 0.05 mmol gâ1 within 45 min. Desorption and resin regeneration studies were carried out to determine the effectiveness of the synthesized resin with HCl and NaOH respectively. The adsorption test indicated that the chitosan based chelating resin with IBPG functions exhibited higher selectivity of boron (2.05 mmol gâ1) in the presence of foreign ions especially Fe(III).
Related Topics
Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Mustafa Gazi, Sayeh Shahmohammadi,