Graphene Oxide/Polyaniline/Manganese Oxide Ternary Nanocomposites, Facile Synthesis, Characterization, and Application for Indigo Carmine Removal

Graphene Oxide/Polyaniline/Manganese Oxide Ternary Nanocomposites, Facile Synthesis,... Graphene oxide/polyaniline/manganese oxide ternary nanocomposites (GO/PANI/Mn2O3) have been successfully synthesized in one-pot method by in situ chemical oxidative polymerization of aniline in acidic medium using MnO2 as an oxidant. The obtaining nanocomposites have been characterized by transmission electron microscope, Fourier transform infrared, X-ray powder diffraction, and thermogravimetric analysis. The adsorption isotherms of indigo carmine (IC) onto; PANI, GO/PANI, PANI/MnO2, and GO/PANI/Mn2O3 have been evaluated under different adsorption conditions. The adsorption isotherm models of Langmuir, Freundlich, and Temkin were applied and the fit linear was obtained with Langmuir model. It was found that adsorption capacities followed the order: GO/PANI > GO/PANI/Mn2O3 > PANI > PANI/MnO2 with the values of 88.73, 76.40, 60.45 and 22.52 mg/g. Moreover, the kinetics of the adsorption process was investigated and fit linear was obtained with pseudo-second-order model. The adsorption process was exothermic and spontaneous as revealed from the thermodynamic studies. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Polymers and the Environment Springer Journals

Graphene Oxide/Polyaniline/Manganese Oxide Ternary Nanocomposites, Facile Synthesis, Characterization, and Application for Indigo Carmine Removal

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Publisher
Springer Journals
Copyright
Copyright © 2017 by Springer Science+Business Media New York
Subject
Chemistry; Polymer Sciences; Environmental Chemistry; Materials Science, general; Environmental Engineering/Biotechnology; Industrial Chemistry/Chemical Engineering
ISSN
1566-2543
eISSN
1572-8900
D.O.I.
10.1007/s10924-017-0947-z
Publisher site
See Article on Publisher Site

Abstract

Graphene oxide/polyaniline/manganese oxide ternary nanocomposites (GO/PANI/Mn2O3) have been successfully synthesized in one-pot method by in situ chemical oxidative polymerization of aniline in acidic medium using MnO2 as an oxidant. The obtaining nanocomposites have been characterized by transmission electron microscope, Fourier transform infrared, X-ray powder diffraction, and thermogravimetric analysis. The adsorption isotherms of indigo carmine (IC) onto; PANI, GO/PANI, PANI/MnO2, and GO/PANI/Mn2O3 have been evaluated under different adsorption conditions. The adsorption isotherm models of Langmuir, Freundlich, and Temkin were applied and the fit linear was obtained with Langmuir model. It was found that adsorption capacities followed the order: GO/PANI > GO/PANI/Mn2O3 > PANI > PANI/MnO2 with the values of 88.73, 76.40, 60.45 and 22.52 mg/g. Moreover, the kinetics of the adsorption process was investigated and fit linear was obtained with pseudo-second-order model. The adsorption process was exothermic and spontaneous as revealed from the thermodynamic studies.

Journal

Journal of Polymers and the EnvironmentSpringer Journals

Published: Mar 9, 2017

References

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