Magnetic nickel ferrite nanoparticles for removal of dipyrone from aqueous solutions

VALERIA SPRINGER; ELIANA PECINI; MARCELO AVENA

Journal of Environmental Chemical Engineering

Elsevier

Año: 2016 vol. 4 p. 3882 - 3890

2213-3437

Nickel ferrite nanoparticles with an average size between 16.6 and 20 nm have been synthesized by a co-precipitation method at room temperature. Crystalline structured particles with ferromagneticproperties were obtained by calcination at 600ºC. These nanoparticles were characterized in order to determine the particle size distribution, morphology,surface charge and adsorption properties. Nickel ferrite nanoparticles were testedas potential adsorbent for removal of dipyrone from aqueous solution byevaluating adsorption kinetics and isotherms. Additionally, desorption experiments were conducted at lab scale by using a flow through system aiming to study the release of dipyrone from the proposed material at different experimental conditions. With the advantages of low cost and rapid processing,these magnetic nanoparticles could gain a promising application in the removalof pharmaceutical compound residues during treatment of water samples on a large scale.