Polyaniline modified magnetic nanoparticles coated with dicationic ionic liquid for effective removal of rhodamine B (RB) from aqueous solution.

Autor:	Shahriman MS; Integrative Medicine Cluster, Advanced Medical and Dental Institute (AMDI), Universiti Sains Malaysia 13200 Kepala Batas Pulau Pinang Malaysia., Mohamad Zain NN; Integrative Medicine Cluster, Advanced Medical and Dental Institute (AMDI), Universiti Sains Malaysia 13200 Kepala Batas Pulau Pinang Malaysia., Mohamad S; Department of Chemistry, Faculty of Science, University of Malaya 50603 Kuala Lumpur Malaysia muggundha@um.edu.my +603 7967 7022 ext. 2544.; University of Malaya Centre for Ionic Liquids (UMCIL), Department of Chemistry, Faculty of Science, University of Malaya 50603 Kuala Lumpur Malaysia., Abdul Manan NS; Department of Chemistry, Faculty of Science, University of Malaya 50603 Kuala Lumpur Malaysia muggundha@um.edu.my +603 7967 7022 ext. 2544.; University of Malaya Centre for Ionic Liquids (UMCIL), Department of Chemistry, Faculty of Science, University of Malaya 50603 Kuala Lumpur Malaysia., Yaman SM; Department of Chemistry, Faculty of Science, University of Malaya 50603 Kuala Lumpur Malaysia muggundha@um.edu.my +603 7967 7022 ext. 2544., Asman S; Department of Physics and Chemistry, Faculty of Applied Sciences and Technology, Pagoh Education Hub, Universiti Tun Hussein Onn Malaysia 84000 Pagoh, Muar Johor Malaysia., Raoov M; Department of Chemistry, Faculty of Science, University of Malaya 50603 Kuala Lumpur Malaysia muggundha@um.edu.my +603 7967 7022 ext. 2544.; University of Malaya Centre for Ionic Liquids (UMCIL), Department of Chemistry, Faculty of Science, University of Malaya 50603 Kuala Lumpur Malaysia.
Jazyk:	angličtina
Zdroj:	RSC advances [RSC Adv] 2018 Sep 26; Vol. 8 (58), pp. 33180-33192. Date of Electronic Publication: 2018 Sep 26 (Print Publication: 2018).
DOI:	10.1039/c8ra06687f
Abstrakt:	Polyaniline (PANI) modified magnetic nanoparticle (MNP) nanocomposites coated with newly synthesized dicationic ionic liquid (DICAT) forming MNP-PANI-DICAT were successfully synthesized as a potential material for the removal of Rhodamine B (RB) from water samples. The synthesized material was successfully characterized using a few techniques such as Fourier transform infrared spectroscopy (FT-IR), X-ray powder diffraction (XRD), thermo gravimetric analysis (TGA), Brunauer-Emmett-Teller (BET), and transmission electron microscopy (TEM) analysis. Several parameters have been optimized to enhance the efficiency of the removal process. The adsorption kinetics were investigated and the results showed that MNP-PANI-DICAT was best fitted to a pseudo-second order model for the adsorption of RB. As for the isotherm studies, Temkin's model was found to fit well with the adsorption isotherm of RB on MNP-PANI-DICAT. Other than that, thermodynamics results showed negative values of Δ G ° for the adsorption of RB, which indicated that the process is thermodynamically feasible, spontaneous and chemically controlled at lower temperature. The negative value of enthalpy Δ H ° (-40.41) indicated that the adsorption was an exothermic process. The percentage removal of RB was found to be 94.7% by MNP-PANI-DICAT under optimized conditions. Competing Interests: The authors have declared that no conflict of interest. (This journal is © The Royal Society of Chemistry.)
Databáze:	MEDLINE
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