Sorption of Ponceau 4R anionic dye from aqueous solutions on aluminum oxide and polyurethane foam

被引：0
|
作者：
T. I. Tikhomirova
G. R. Ramazanova
V. V. Apyari
机构：
[1] Moscow State University,Department of Chemistry
来源：
Russian Journal of Physical Chemistry A | 2014年 / 88卷
关键词：
dye; aluminum oxide; polyurethane foam; sorption;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The sorption of Ponceau 4R (E-124) anionic dye on polyurethane foam based on ethers and γ-Al2O3 from aqueous solutions is studied. It is established that sorption is highest in the range of 0.5 M HCl, pH 2 on polyurethane foam and 0.2 M HCl, pH 6.5 on γ-Al2O3. Under optimum conditions, the degrees of recovery on polyurethane foam and γ-Al2O3 are 20–30 and 70–85%, respectively. A possible scheme of interactions between the dye and the surfaces of sorbents is proposed.
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页码：2192 / 2196
页数：4
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