versão impressa ISSN 0100-4042
PERGHER, Sibele B. C.; OLIVEIRA, Luiz C. A.; SMANIOTTO, Alessandra e PETKOWICZ, Diego I.. Magnetic zeolites for removal of metals in water. Quím. Nova [online]. 2005, vol.28, n.5, pp. 751-755. ISSN 0100-4042. http://dx.doi.org/10.1590/S0100-40422005000500003.
In this work the adsorption features of zeolites (NaY, Beta, Mordenite and ZSM-5) have been combined with the magnetic properties of iron oxides in a composite to produce a magnetic adsorbent. These magnetic composites can be used as adsorbents for contaminants in water and subsequently removed from the medium by a simple magnetic process. The magnetic zeolites were characterized by XRD, magnetization measurements, chemical analyses, N2 adsorption isotherms and Mössbauer spectroscopy. These magnetic adsorbents show remarkable adsorption capacity for metal ion contaminants in water.
Palavras-chave : zeolite [iron oxide composite]; magnetic adsorbents; metallic contaminants.