Ion/particle flotation; publication in Environ. Sci.: Nano
Team L2IA
The recent Fukushima event has stimulated the hunt for innovative extraction processes of the caesium ion. Here we propose a process based on the foam flotation of a highly selective Cs-complexing agent, namely nanoparticles of the copper based Prussian blue analogue (Cu-PBA), using a pH-sensitive foaming agent. This extraction process of caesium ions combines many advantages related to: the extremely high selectivity of Cu-PBA towards caesium, the efficiency, the low cost and ecological footprint of the foam extraction process. Indeed we show here that reversible extraction/de-extraction of the Cu-PBA was made possible through pH cycles, which enables the recycling of the surfactant, reducing both the cost and the environmental impact of the overall process.
Read the article DOI: 10.1039/C9EN00188C
Cyril Micheau, Dmytro Dedovets, Pierre Bauduin, Olivier Diat and Luc Girard. Environ. Sci.: Nano 6, pp 1576-1584 (2019)
