Sorption of chromium (VI) by Mg/Fe hydrotalcite type compunds
2015
The synthesis by co-precipitation and characterization by X-ray diffraction, Raman and Mossbauer spectroscopies of Mg-Fe-hydrotalcite compounds, and their sorption capacities for Cr(VI) in aqueous media were carried out. The average sorption capacity of Cr(VI) for the non-thermal treated samples was of 6.2 mg/g. The ferrihydrite was omnipresent in all prepared hydrotalcite samples. A brief discussion is made on the role of both the hydrotalcite and ferrihydrite for removing such amount of Cr(VI).
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