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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Bibliographic Details
Published inRussian Journal of Physical Chemistry A Vol. 88; no. 12; pp. 2192 - 2196
Main Authors Tikhomirova, T. I., Ramazanova, G. R., Apyari, V. V.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.12.2014
Subjects
Chemistry
Chemistry and Materials Science
Physical Chemistry
Physical Chemistry of Surface Phenomena
polyurethane foam
dye
aluminum oxide
sorption
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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.
ISSN:0036-0244
1531-863X
DOI:10.1134/S0036024414120371