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 Silica coated magnetite particles for magnetic removal of Hg(2+) from water
Please use this identifier to cite or link to this item http://hdl.handle.net/10773/6228

title: Silica coated magnetite particles for magnetic removal of Hg(2+) from water
authors: 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
URI: http://hdl.handle.net/10773/6228
ISSN: 0021-9797
publisher version/DOI: dx.doi.org/10.1016/j.jcis.2010.01.087
source: Journal Of Colloid And Interface Science
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