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Facile synthesis of polypyrrole decorated chitosan-based magsorbent: Characterizations, performance, and applications in removing cationic and anionic dyes from aqueous medium

Mashkoor, Fouzia, Nasar, Abu·2020·International Journal of Biological Macromolecules
DOI 10.1016/j.ijbiomac.2020.06.015
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Abstract

The adsorption characteristic of polypyrrole decorated chitosan-based magsorbent (MChs/Ppy) for the elimination of cationic crystal violet and anionic methyl orange dye from wastewater were explored. The characteristics of MChs/Ppy were studied by TGA, SEM/EDAX, TEM, BET, FTIR, VSM, and XRD analyses. The performance of MChs/Ppy towards the adsorption of CV and MO was investigated by the batch method. Removal performance was obtained to be 88.11 and 92.89% for CV and MO at the optimum conditions. The adsorption of CV was well described by pseudo 2nd order, while that of MO was best followed by the pseudo 1st order kinetics. The adsorption equilibrium data for both the dyes were fitted well with Langmuir adsorption isotherm with the maximum monolayer sorption capacity of 62.89 and 89.29 mg/g for CV and MO, respectively. The negative values of ΔH and ΔF accompanying with the removal of both dyes specified the adsorption process to be exothermic and spontaneous. Regeneration study showed that MChs/Ppy could be reused efficaciously up to three consecutive ad-/de-sorption cycles. The combined benefits of facile synthesis, non-toxicity, and good adsorption potential towards cationic and anionic dyes along with easy magnetic separability make MChs/Ppy as a novel adsorbent.

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  • Banana peel, cabbage waste, chitosan, citrus peel, Citrus limonum leaves, corn cob, orange peel, peanut hull, rice husk, sawdust, and sugar cane bagasse have demonstrated successful utilization as adsorbents for eliminating diverse types of contaminants.

    “banana peel [110-113], cabbage waste [114], chitosan [115-118], citrus peel [119,120], Citrus limonum leaves [121], corn cob [122], orange peel [123,124], peanut hull [125], rice husk [126,127], sawdust [128], and sugar cane bagasse [129] have demonstrated successful utilization as adsorbents for the purpose of eliminating diverse types of contaminants.”

    From Recent Advances in the Remediation of Textile-Dye-Containing Wastewater: Prioritizing Human Health and Sustainable Wastewater Treatment (2024) · cites this paper as [115]

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Authors
Mashkoor, F., & Nasar, A.
Venue
International Journal of Biological Macromolecules
Publisher
Elsevier BV
Published
2020-10
Volume
161
Pages
88-100
ISSN
0141-8130
DOI
10.1016/j.ijbiomac.2020.06.015
Cited by
80
References
3
Language
en
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