Removal of Polycarboxylic Benzoic Acids Using Polyanilinepolypyrrole Copolymer: Experimental and DFT Studies 


Vol. 20,  No. 5, pp. 896-905, May  2019
10.1007/s12221-019-8212-9


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  Abstract

This work focuses on the removal of hemimellitic, trimellitic, and pyromellitic acids from aqueous solution using polyaniline-polypyrrole copolymer. The experimental data indicate that the adsorption is well described by the pseudosecond- order kinetic model and the Langmuir isotherm model. The maximum adsorbed quantities of hemimellitic, trimellitic, and pyromellitic acids are 79.94, 93.55, and 111.29 mg/g, respectively. The thermodynamic study shows that the adsorption was a spontaneous and endothermic process. The adsorption mechanism was investigated using the density functional theory (DFT) at the B3LYP/6-31G(d). The theoretical data show that the adsorbate molecules were physisorbed via their carboxylic groups on the hydrogen atoms in amine groups of the polyaniline-polypyrrole. All the results suggest that the PANi-PPy copolymer is an efficient recyclable adsorbent for wastewater treatment.

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  Cite this article

[IEEE Style]

M. Laabd, A. Hallaoui, N. Aarb, A. Essekri, H. Eljazouli, R. Lakhmiri, A. Albourine, "Removal of Polycarboxylic Benzoic Acids Using Polyanilinepolypyrrole Copolymer: Experimental and DFT Studies," Fibers and Polymers, vol. 20, no. 5, pp. 896-905, 2019. DOI: 10.1007/s12221-019-8212-9.

[ACM Style]

M. Laabd, A. Hallaoui, N. Aarb, A. Essekri, H. Eljazouli, R. Lakhmiri, and A. Albourine. 2019. Removal of Polycarboxylic Benzoic Acids Using Polyanilinepolypyrrole Copolymer: Experimental and DFT Studies. Fibers and Polymers, 20, 5, (2019), 896-905. DOI: 10.1007/s12221-019-8212-9.

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