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Synthesis, anion-exchange properties, and hydrolytic stability of Mg-Fe(III) layered double hydroxides

Composite materials having the hydrotalcite structure and based on iron and magnesium dou ble hydroxides have been synthesized and investigated. The sorption of phosphate and chromate anions on these materials was studied after their heat treatment at different temperatures. The magnesium washing-out from the heat treated samples under discussion was also studied. The temperature of the heat treatment of Me and Fe(III) double hydroxides was found to produce a major impact on their hydrolytic stability and sorption of anions that generally increased with the temperature rise.

Authors:   L. S. Randarevich, I. Z. Zhuravlev, V. V. Strelko, N. M. Patrilyak, T. A. Shaposhnikova
Journal:   Journal of Water Chemistry and Technology
Year:   2009
DOI:   10.3103/S1063455X09020052
Publication date:   13-May-2009
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