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Recebido em 7/3/07; aceito em 27/7/07; publicado na web em 26/2/08 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 Hg 2+ from aqueous solutions. These materials have unique chemical and physical properties, and here we are able todoi:10.1590/s0100-40422008000200025 fatcat:xto6ikzpkfgermtdbwzc3epjga