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Vol. 27 No. 6 (2015): Vol 27 Issue 6

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Comparative Sorption Studies for Amaranth Dye Removal from Water in Cost-Effective Way Using Guava Leaves and Potato Peels

https://doi.org/10.14233/ajchem.2015.17656
Rabia Rehman
Institute of Chemistry, University of the Punjab, Lahore-54590, Pakistan
Tariq Mahmud
Institute of Chemistry, University of the Punjab, Lahore-54590, Pakistan
Maria Irum
Institute of Chemistry, University of the Punjab, Lahore-54590, Pakistan

Corresponding Author(s) : Rabia Rehman

grinorganic@yahoo.com

Asian Journal of Chemistry, Vol. 27 No. 6 (2015): Vol 27 Issue 6

Abstract

In this work, guava leaves and potato peels were used as adsorbents for removal of synthetic dye, i.e. Amaranth. Biosorbents were characterized by FT-IR and Boehm titration. The removal of dyes was confirmed by UV-visible spectroscopy. Isothermal modeling was done and maximum adsorption capacity qm for potato peels and guava leaves, respectively was found to be 1.709 and 1.028 mg g-1, while DG° values were -1.265 and 2.461 KJ/mol which indicates that adsorption process was exothermic and spontaneous with potato peels and vice versa is true for guava leaves. Similarly, pH, moisture content and elemental analysis of the adsorbents was also carried out. Results showed that potato peels were more effective for removal of Amaranth dye than guava leaves.

Keywords

Amaranth Guava leaves Potato peels Adsorption
Rehman, R., Mahmud, T., & Irum, M. (2015). Comparative Sorption Studies for Amaranth Dye Removal from Water in Cost-Effective Way Using Guava Leaves and Potato Peels. Asian Journal of Chemistry, 27(6), 2008–2014. https://doi.org/10.14233/ajchem.2015.17656
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