Original scientific paper
https://doi.org/10.13044/j.sdewes.d14.0705
A Novel Material for Nickel Removal: Magnetic Nanoparticles Supported on Dolomite
Tomás Lopez
; Buenos Aires University, Buenos Aires, Argentina
Ana B. Fossati
; Buenos Aires University, Buenos Aires, Argentina
Silvia Elena Jacobo
; LaQuiMMAI - IQAI - Facultad de Ingeniería - Universidad de Buenos Aires, Buenos Aires, Argentina
Susana P. Boeykens
orcid.org/0000-0003-2138-3840
; Buenos Aires University, Buenos Aires, Argentina
María Natalia Piol
; Engineering Faculty of Universidad de Buenos Aires, CABA, Argentina
Abstract
This work aims to contribute to the development of new materials for environmental protection. The preparation and characterisation of new materials based on magnetic nanoparticles on a dolomite matrix are presented, along with an evaluation of their ability to remove nickel (II) from aqueous solutions. Different systems were prepared: pure dolomite, a mechanical mixture of dolomite with magnetic nanoparticles, and nanoparticles supported on a dolomite matrix. These systems were characterised, revealing distinct structural properties of the nanoparticles supported on a dolomite matrix. Tests were performed in batch and in continuous reactors under different operating conditions. These studies demonstrated a higher adsorption capacity for nanoparticles supported on a dolomite matrix. Removals of 39.6%, 17.4%, and 4.59% were obtained with nanoparticles supported on a dolomite matrix, magnetic nanoparticles mixed with dolomite, and dolomite alone, respectively. Furthermore, in fixed-bed reactors, nanoparticles supported on a dolomite matrix exhibited greater operational stability. These results position the nanoparticles supported on a dolomite matrix as a viable and safe option for treating industrial effluents.
Keywords
Water treatment; Dolomite; Magnetic nanoparticle; Supported material; Nickel.
Hrčak ID:
351019
URI
Publication date:
23.9.2026.
Visits: 0 *