Preparation of Fe3O4/TiO2/Polypyrrole Ternary Magnetic Composite and Using as Adsorbent for the Removal of Acid Red G

Preparation of Fe3O4/TiO2/Polypyrrole Ternary Magnetic Composite and Using as Adsorbent for the... This study focuses on the adsorption performance of the Fe3O4/TiO2/PPy ternary composite for Acid Red G from aqueous solution. Firstly, Fe3O4/TiO2/PPy Ternary composite was synthesized by introducing Fe3O4 into the preparation process of TiO2/PPy composite. Fourier transformation infrared spectra (FT-IR), X-ray diffraction patterns (XRD) and the magnetization test confirmed the existence of Fe3O4 in the ternary composite. The specific surface area and the zeta potential test suggested that the as-prepared Fe3O4/TiO2/PPy composite showed the similar surface nature to the TiO2/PPy composite. The obtained Fe3O4/TiO2/PPy composite exhibited an excellent adsorption capacity of 161.8 mg/g for Acid Red G (ARG) from aqueous solution and can reach the equilibrium within 20 min. The composite can be easily retrieved from the solution by an external magnetic field and regenerated simply by an alkaline/acidic alternate process. The composite retained about 86 % of the adsorption efficiency after six adsorption/desorption cycles. The adsorption isotherms and kinetics of the composite can be well described by Langmuir and pseudo-second-order models, respectively. The electrostatic interaction and the hydrogen bonding were the main adsorption mechanism. This illustrates that the introduced Fe3O4 not only maintained the adsorption capability of TiO2/PPy but also improve the reclaim performance. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Polymers and the Environment Springer Journals

Preparation of Fe3O4/TiO2/Polypyrrole Ternary Magnetic Composite and Using as Adsorbent for the Removal of Acid Red G

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Publisher
Springer US
Copyright
Copyright © 2016 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/s10924-016-0839-7
Publisher site
See Article on Publisher Site

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