Silica coated magnetite particles for magnetic removal of Hg2+ from water
authors Girginova, PI; Daniel-Da-Silva, AL; Lopes, CB; Figueira, P; Otero, M; Amaral, VS; Pereira, E; Trindade, T
nationality International
journal JOURNAL OF COLLOID AND INTERFACE SCIENCE
author keywords Mercury; Magnetite particles; Dithiocarbamate; Silica surfaces; Water purification
keywords SOLID-PHASE EXTRACTION; IMMOBILIZED-DITHIOCARBAMATE DERIVATIVES; PLASMA-MASS SPECTROMETRY; AQUEOUS-SOLUTIONS; HEAVY-METALS; WASTE-WATER; ENVIRONMENTAL APPLICATIONS; TITANOSILICATE ETS-4; SURFACE MODIFICATION; NATURAL-WATERS
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 mu g l(-1). Therefore these eco-nanomagnets show great potential for the removal of heavy metal ions of polluted water, via magnetic separation. (c) 2010 Elsevier Inc. All rights reserved.
publisher ACADEMIC PRESS INC ELSEVIER SCIENCE
issn 0021-9797
year published 2010
volume 345
issue 2
beginning page 234
ending page 240
digital object identifier (doi) 10.1016/j.jcis.2010.01.087
web of science category Chemistry, Physical
subject category Chemistry
unique article identifier WOS:000276729200017
  ciceco authors
  impact metrics
journal analysis (jcr 2017):
journal impact factor 5.091
5 year journal impact factor 4.281
category normalized journal impact factor percentile 77.891
dimensions (citation analysis):
altmetrics (social interaction):



 


Apoio

1suponsers_list_ciceco.jpg