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Journal of Nanomaterials - Volume 2017 2017, Article ID 8579598, 7 pages - https:-doi.org-10.1155-2017-8579598

Research Article

Chemical Technology Department, National Technical University of Ukraine -Igor Sikorsky Kyiv Polytechnic Institute-, Victory Avenue 37, Kyiv 03056, Ukraine

G. V. Kurdyumov Institute for Metal Physics National Academy of Sciences of the Ukraine, Academician Vernadsky Blvd. 36, Kyiv 03680, Ukraine

Correspondence should be addressed to Oksana Makarchuk

Received 23 February 2017; Accepted 30 April 2017; Published 29 May 2017

Academic Editor: Vidyadhar Singh

Copyright © 2017 Oksana Makarchuk et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Magnetic nanocomposite sorbents for disposal of synthetic detergents from wastewater were synthesized. Obtained sorbents based on clay minerals saponite, palygorskite, and spondyle clay and magnetite were characterized by X-ray powder diffraction, Mössbauer spectroscopy, and ballistic method with Steinberg magnetometer. As a result, the average crystallite sizes of Fe3O4 nanoparticles in magnetic nanocomposites were 2–10 nm. Magnetic nanocomposites had superparamagnetic properties and were classified as soft magnetic materials. Comparison of sorption properties showed that magnetic composite sorbents had efficiency of adsorption removal of anionic surfactants and polyphosphates from aqueous solution 2–8 times higher compared to native clay minerals. Spent magnetic nanocomposites were effectively removed from the aqueous solution by magnetic separation. So, the efficiency of magnetic composites application and implementing of magnetic separation in adsorption purification was confirmed.





Autor: Oksana Makarchuk, Tetiana Dontsova, Anatolii Perekos, Alexander Skoblik, and Yevhen Svystunov

Fuente: https://www.hindawi.com/



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