Uptake of Hg2+ from aqueous solutions by microporous titano- and zircono-silicates
authors Lopes, CB; Coimbra, J; Otero, M; Pereira, E; Duarte, AC; Lin, Z; Rocha, J
nationality International
journal QUIMICA NOVA
author keywords mercury; titanosilicates; zirconosilicates
keywords STRUCTURAL-CHARACTERIZATION; TITANOSILICATE ETS-10; WASTE-WATER; ZEOLITE; ADSORPTION; SORPTION; REMOVAL; COPPER; IONS
abstract Being mercury one of the most toxic heavy metals present in the environment, it is of major concern to develop cleanup technologies to remove it from wastewater and recover mercury polluted ecosystems. In this context, we study the potential of some microporous titanosilicates and zirconosilicates for taking up Hg2+ from aqueous solutions. These materials have unique chemical and physical properties, and here we are able to confirm that they readily remove Hg2+ from aqueous solutions. Moreover, the presence of the competitive Mg2+ and Na+, which are some of the dominant cations in natural waters, does not reduce the uptake capacity of some of these materials. Thus, several inorganic materials reported here may have important environmental applications, efficiently removing Hg2+ from aqueous solutions.
publisher SOC BRASILEIRA QUIMICA
issn 0100-4042
year published 2008
volume 31
issue 2
beginning page 321
ending page 325
digital object identifier (doi) 10.1590/S0100-40422008000200025
web of science category Chemistry, Multidisciplinary
subject category Chemistry
unique article identifier WOS:000254295500025
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journal impact factor 0.668
5 year journal impact factor 0.849
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