Abstract
Adsorption of ruthenium (III) from acidic aqueous solution by Fe3O4 and Fe3O4@MnO2 composites was studied by a batch equilibrium method at room temperature. Mass distribution coefficients of Ru(III) were determined in the system of Fe3O4 and Fe3O4@MnO2 in solutions of HCl and HNO3 (concentration range from 0.01 to 0.5 mol L−1). The selectivity of ruthenium sorption in the developed systems was checked with the use of other elements. Recovery of ruthenium ions after separation process with Fe3O4@MnO2 from tap water samples was examined. The ruthenium adsorbed on the Fe3O4@MnO2 surface could be readily separated from diluted acid solutions by an external magnetic field. Results suggest that Fe3O4@MnO2 can be a new, promising sorbent for efficient removal of ruthenium from aqueous solutions.
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Research were financed by Representative of the Government of the Republic of Poland in Joint Institute for Nuclear Research in Dubna (Russia) 04-4-1121-2015/2020.
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Zuba, I., Drwal, A., Drwal, K. et al. Comparison study of ruthenium sorption on Fe3O4 and Fe3O4@MnO2 in hydrochloric and nitric acids. J Radioanal Nucl Chem 327, 891–896 (2021). https://doi.org/10.1007/s10967-020-07535-5
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DOI: https://doi.org/10.1007/s10967-020-07535-5