Adsorption of Crystal Violet Dye from Aqueous Solution by Poly(Acrylamide-co-Maleic Acid)/Montmorillonite Nanocomposite

Adsorption of Crystal Violet Dye from Aqueous Solution by Poly(Acrylamide-co-Maleic... Poly(acrylamide-co-maleic acid)/montmorillonite nanocomposites, were synthesized via in situ polymerization with different maleic acid and MMT content. The capability of the hydrogel for adsorption of crystal violet (CV) was investigated in aqueous solutions at different pH values and temperatures. The pseudo-second-order kinetics model could fit successfully the adsorption kinetic data. The effects of maleic acid to acrylamide molar ratio (MAR), weight percent of MMT (MMT%), the pH of medium and the solution temperature (T) on the CV adsorption capacity (q e ) of adsorbents were studied by Taguchi experimental design approach. The results indicated that increasing the MMT% leads to a greater q e . The q e value of adsorbents increased also with increasing both MAR and pH, while reduced when the temperature of medium increased. The relatively optimum conditions to achieve a maximum CV adsorption capacity for P(AAm/MA)/MMT adsorbents were found as: 0.06 for MAR and 5 % of MMT%, medium pH = 7 and T = 20 °C. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Polymers and the Environment Springer Journals

Adsorption of Crystal Violet Dye from Aqueous Solution by Poly(Acrylamide-co-Maleic Acid)/Montmorillonite Nanocomposite

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Publisher
Springer US
Copyright
Copyright © 2016 by Springer Science+Business Media New York
Subject
Chemistry; Polymer Sciences; Environmental Chemistry; Materials Science, general; Environmental Engineering/Biotechnology; Industrial Chemistry/Chemical Engineering
ISSN
1566-2543
eISSN
1572-8900
D.O.I.
10.1007/s10924-016-0842-z
Publisher site
See Article on Publisher Site

Abstract

Poly(acrylamide-co-maleic acid)/montmorillonite nanocomposites, were synthesized via in situ polymerization with different maleic acid and MMT content. The capability of the hydrogel for adsorption of crystal violet (CV) was investigated in aqueous solutions at different pH values and temperatures. The pseudo-second-order kinetics model could fit successfully the adsorption kinetic data. The effects of maleic acid to acrylamide molar ratio (MAR), weight percent of MMT (MMT%), the pH of medium and the solution temperature (T) on the CV adsorption capacity (q e ) of adsorbents were studied by Taguchi experimental design approach. The results indicated that increasing the MMT% leads to a greater q e . The q e value of adsorbents increased also with increasing both MAR and pH, while reduced when the temperature of medium increased. The relatively optimum conditions to achieve a maximum CV adsorption capacity for P(AAm/MA)/MMT adsorbents were found as: 0.06 for MAR and 5 % of MMT%, medium pH = 7 and T = 20 °C.

Journal

Journal of Polymers and the EnvironmentSpringer Journals

Published: Sep 27, 2016

References

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