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Chemistry for Sustainable Development

2009 year, number 4

Investigation of Sorption Properties of Natural Mordenite-Containing Tufa with Respect to Cerium (III) Ions

N. M. Kozhevnikova, A. A. Shesterikova
Keywords: mordenite-containing tufa, cerium, sorption capacity, sorption mechanisms
Pages: 389-392


Ion-exchange sorption of cerium (III) ions from aqueous solutions of cerium sulphate by natural morednite-containing tufa was studied under the static conditions. Quantitative extraction of cerium from diluted (<0.003 mol/l) solutions was established. It was stated that an increase in the solution concentration causes a decrease in the sorption capacity of tufa. Isotherms of absorption of cerium ions were plotted; the kinetic parameters of the sorption process were determined.