Fe3O4@C core-shell nanoparticles as adsorbent of ionic zinc: evaluating of the adsorptive capacity

Zinc is an important chemical element in many metabolic mechanisms at low concentrations, but can be toxic when administrated in doses higher than 500 µg·g-1 or 3 mg·L-1. This metal has been detected in many aquatic environments due to several industry activities and swine manure effluents. Thus, th...

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Published in:Materials research (São Carlos, São Paulo, Brazil) São Paulo, Brazil), 2019-01, Vol.22 (suppl 1), p.1
Main Authors: Costa, Tauana Rhodio da, Baldi, Eduarda, Figueiró, Amanda, Colpani, Gustavo Lopes, Silva, Luciano Luiz, Zanetti, Micheli, Mello, Josiane Maria Muneron de, Fiori, Márcio Antônio
Format: Article
Language:English
Subjects:
adsorption by magnetite-carbon core-shell nanoparticles
adsorption of zinc
Adsorptivity
Aquatic environment
Aqueous solutions
Chemical elements
Contaminants
Core-shell nanoparticles
Core-shell particles
ENGINEERING, CHEMICAL
Iron oxides
Low concentrations
MATERIALS SCIENCE, MULTIDISCIPLINARY
METALLURGY & METALLURGICAL ENGINEERING
Nanoparticles
Organic chemistry
Swine
Wastewater
Zinc
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Summary:Zinc is an important chemical element in many metabolic mechanisms at low concentrations, but can be toxic when administrated in doses higher than 500 µg·g-1 or 3 mg·L-1. This metal has been detected in many aquatic environments due to several industry activities and swine manure effluents. Thus, the contaminant removal of water and wastewater has been a major challenge. Many processes are applied and evaluated in an attempt to removal zinc found in environment, such as adsorption. In the present study Fe3O4@C core-shell nanoparticles were synthesized and used to adsorb ionic zinc species in aqueous solutions. The core-shell nanoparticles exhibited excellent zinc removal capacity, with a maximum efficiency equal 65% where applied in an aqueous solution containing 10 mg·l-1 of this ionic metal.
ISSN:1516-1439
1980-5373
1980-5373
DOI:10.1590/1980-5373-mr-2018-0847