[3E06-09] Nuclide Separation 2

[3E06] Recovery of platinum group elements using metal-organic nanospace materials:

(I) Introductory talk

*Jun Onoe¹ (1. Nagoya University)

Keywords:Metal-organic nanospace materials, platinum-group elements, Electrochemistry, redox states, uptake performance

Platinum-group metals (PGMs) and molybdenum (Mo) contained in high-level radioactive liquid waste (HLLW) cause some problems in the vitrification process (joule heating failure due to current flow, glass flowability deterioration, failure, and clogging). We have found that Prussian blue (PB) and its analogues (PBA), which are one of the metal-organic nanospace materials, exhibit a higher uptake performance for PGMs and Mo than conventional sorbents (clay layers such as activated carbon and zeolite). In this talk, I will introduce the background of the research and the results obtained so far, and thereafter briefly introduce the contents of the following three talks after describing the issues and measures for practical use of PB/PBA.