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Title: Silica coated magnetite particles for magnetic removal of Hg(2+) from water
Author: Girginova, Penka I.
Daniel-da-Silva, Ana L.
Lopes, Cláudia B.
Figueira, Paula
Otero, Marta
Amaral, Vítor S.
Pereira, Eduarda
Trindade, Tito
Keywords: Mercury
Magnetite particles
Silica surfaces
Water purification
Issue Date: May-2010
Publisher: Elsevier
Abstract: The magnetic removal of Hg2+ from water has been assessed using silica coated magnetite particles. The magnetite particles were first prepared by hydrolysis of FeSO4 and their surfaces were modified with amorphous silica shells that were then functionalized with organic moieties containing terminal dithiocarbamate groups. Under the experimental conditions used, the materials reported here displayed high efficiency for Hg2+ uptake (74%) even at contaminant levels as low as 50 lg l 1. Therefore these eco-nanomagnets show great potential for the removal of heavy metal ions of polluted water, via magnetic separation
Peer review: yes
DOI: 10.1016/j.jcis.2010.01.087
ISSN: 0021-9797
Appears in Collections:CESAM - Artigos
CICECO - Artigos
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