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Journal of Analytical Methods in Chemistry
Volume 2017, Article ID 9476065, 9 pages
https://doi.org/10.1155/2017/9476065
Research Article

Synthesis and Characterization of Mixed Iron-Manganese Oxide Nanoparticles and Their Application for Efficient Nickel Ion Removal from Aqueous Samples

1Department of Biological and Environmental Sciences and Technologies (DiSTeBA), Università del Salento, Via Per Arnesano, 73100 Lecce, Italy
2Department of Mathematics and Physics “E. De Giorgi”, Università del Salento, Via Per Arnesano, 73100 Lecce, Italy
3CNR NANOTEC-Istituto di Nanotecnologia, Via Per Arnesano, 73100 Lecce, Italy
4IRCCS, National Institute of Gastroenterology “S. de Bellis”, Castellana Grotte, 70013 Bari, Italy
5Department of Engineering for Innovation, Università del Salento, Via Monteroni, 73100 Lecce, Italy
6Department of Cultural Heritage, Università del Salento, Via D. Birago, 73100 Lecce, Italy

Correspondence should be addressed to Gabriele Giancane; ti.otnelasinu@enacnaig.eleirbag

Received 19 April 2017; Accepted 11 June 2017; Published 19 July 2017

Academic Editor: Chih-Ching Huang

Copyright © 2017 Alessandro Buccolieri 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

Mixed iron-manganese oxide nanoparticles, synthesized by a simple procedure, were used to remove nickel ion from aqueous solutions. Nanostructures, prepared by using different weight percents of manganese, were characterized by transmission electron microscopy, selected area diffraction, X-ray diffraction, Raman spectroscopy, and vibrating sample magnetometry. Adsorption/desorption isotherm curves demonstrated that manganese inclusions enhance the specific surface area three times and the pores volume ten times. This feature was crucial to decontaminate both aqueous samples and food extracts from nickel ion. Efficient removal of Ni2+ was highlighted by the well-known dimethylglyoxime test and by ICP-MS analysis and the possibility of regenerating the nanostructure was obtained by a washing treatment in disodium ethylenediaminetetraacetate solution.