What is it about?
In this study, hexacyanoferrate nanoparticle (NP) functionalised silica monoliths were used to selectively remove Cs+ from aqueous solutions which also contained large concentrations of Na+. Various NP loading levels were examined from 0.2 %wt up to 5.1 %wt producing different 133Cs and 137Cs sorption results.
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Why is it important?
The original way of functionalisation is very easy and does not require any monoliths impregnation step. It also allows to get high content of NPs inside the monoliths. Experiments done with radioactive 137Cs (41kBq/l # 9.10-11 mol/L) assessed selectivity of the monoliths towards Cs in the presence of very high concentration of sodium ions (0.65 mol/L). It is noteworthy that even with these unfavorable conditions, monoliths showed high coefficient distribution, around 100000 ml/g .
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This page is a summary of: Facile one-pot synthesis of copper hexacyanoferrate nanoparticle functionalised silica monoliths for the selective entrapment of 137Cs, Journal of Materials Chemistry A, January 2014, Royal Society of Chemistry,
DOI: 10.1039/c4ta01266f.
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