Sorption Behavior of Monosodium Titanate and Amorphous Peroxotitanate Materials Under Weakly Acidic Conditions
Inorganic, titanate-based sorbents are tested with respect to adsorption of a variety of sorbates under weakly acidic conditions (pH 3). Specifically, monosodium titanate (MST) and amorphous peroxotitanate (APT) sorption characteristics are initially probed through a screening process
consisting of a pair of mixed metal solutions containing a total of 29 sorbates including alkali metals, alkaline earth metals, transition metals, metalloids and nonmetals. MST and APT sorption characteristics are further analyzed individually with chromium(III) and cadmium(II) using a batch
method at ambient laboratory temperature, varying concentrations of the sorbents and sorbates and contact times. Maximum sorbate loadings are obtained from the respective adsorption isotherms.
Keywords: cadmium; chromium; decontamination factor; ion exchange; metals; surface charge
Document Type: Research Article
Affiliations: Savannah River National Laboratory, Aiken, SC
Publication date: 01 January 2010
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