Abstract
Wastewater treatment has become immensely challenging. Adsorption process has an obvious drawback since it does not lead to dyes degradation in the end. A novel Polypyrrole/Chitosan/exfoliated Grapheneoxide/Montmorillonite (PPy@CS/MMT/GO) nanohybrid was synthesized using in situ polymerization of pyrrole on a high surface area CS/MMT/GO nanocomposite to give multi-functional adsorbent with high ability for removal of neutral, anionic, and cationic dyes. The PPy@CS/MMT/GO surface morphology was characterized by various instrumental techniques such as SEM, TEM, and XRD. The removal efficiency for Biebrich scarlet (99%), Eosin Y (97%), neutral red (95%), Safranin O (66%), and Titan yellow (85%) was estimated. The adsorption trend was rapid in the case of Biebrich scarlet, Eosin Y, and neutral red, consequently. The R2 values for second-order model indicated the high reliability for the developed regression models in explaining experimental data of adsorption of Saf-O and Tit-Y onto PPy@CS/MMT/GO. Langmiur and Freundlich adsorption models were used to describe the equilibrium isotherm for Tit-Y and Saf-O. Thermodynamic studies demonstrated that the adsorption of Saf-O and Tit-Y onto PPy@CS/MMT/GO was feasible endothermic and spontaneous. The reutilization of the nanohybrid which adsorbed the dyes was examined.
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Salahuddin, N.A., EL-Daly, H.A., El Sharkawy, R.G., Nasr, B.T. (2021). Adsorption of Dyes from Aqueous Solutions onto Multi-functional PPy/CS Exfoliated Nanohybrid for Fashionable Layered Polymer Nanocomposites. In: Ksibi, M., et al. Recent Advances in Environmental Science from the Euro-Mediterranean and Surrounding Regions (2nd Edition). EMCEI 2019. Environmental Science and Engineering(). Springer, Cham. https://doi.org/10.1007/978-3-030-51210-1_76
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DOI: https://doi.org/10.1007/978-3-030-51210-1_76
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