Magnetic Fe3O4-Ag0 nanocomposites for effective mercury removal from water

Tools

Inglezakis, Vassilis J. and Kurbanova, Aliya and Molkenova, Anara and Zorpas, Antonis A. and Atabaev, Timur Sh (2020) Magnetic Fe3O4-Ag0 nanocomposites for effective mercury removal from water. Sustainability (Switzerland), 12 (13). 5489. ISSN 2071-1050 (https://doi.org/10.3390/su12135489)

[thumbnail of Inglezakis-etal-Sustainability-2020-Magnetic-Fe3O4-Ag0-nanocomposites-for-effective-mercury]
Preview
 Text. Filename: Inglezakis_etal_Sustainability_2020_Magnetic_Fe3O4_Ag0_nanocomposites_for_effective_mercury.pdf
Final Published Version
License: Creative Commons Attribution 4.0 logo
Download (2MB)| Preview

Abstract

In this study, magnetic Fe3O4 particles and Fe3O4-Ag0 nanocomposites were prepared by a facile and green method, fully characterized and used for the removal of Hg2+ from water. Characterizations showed that the Fe3O4 particles are quasi-spherical with an average diameter of 217 nm and metallic silver nanoparticles formed on the surface with a size of 23-41 nm. The initial Hg2+ removal rate was very fast followed by a slow increase and the maximum solid phase loading was 71.3 mg/g for the Fe3O4-Ag0 and 28 mg/g for the bare Fe3O4. The removal mechanism is complex, involving Hg2+ adsorption and reduction, Fe2+ and Ag0 oxidation accompanied with reactions of Cl- with Hg+ and Ag+. The facile and green synthesis process, the fast kinetics and high removal capacity and the possibility of magnetic separation make Fe3O4-Ag0 nanocomposites attractive materials for the removal of Hg2+ from water

ORCID iDs

Inglezakis, Vassilis J. ORCID logoORCID: https://orcid.org/0000-0002-0195-0417, Kurbanova, Aliya, Molkenova, Anara, Zorpas, Antonis A. and Atabaev, Timur Sh;
CORE (COnnecting REpositories)