Sorption of Ponceau 4R anionic dye from aqueous solutions on aluminum oxide and polyurethane foam
The sorption of Ponceau 4R (E-124) anionic dye on polyurethane foam based on ethers and γ-Al 2 O 3 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-Al 2 O 3 . Under optimum conditions, the de...
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Published in | Russian Journal of Physical Chemistry A Vol. 88; no. 12; pp. 2192 - 2196 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
Moscow
Pleiades Publishing
01.12.2014
|
Subjects | |
Online Access | Get full text |
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Summary: | The sorption of Ponceau 4R (E-124) anionic dye on polyurethane foam based on ethers and γ-Al
2
O
3
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-Al
2
O
3
. Under optimum conditions, the degrees of recovery on polyurethane foam and γ-Al
2
O
3
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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ISSN: | 0036-0244 1531-863X |
DOI: | 10.1134/S0036024414120371 |