[2L11-15] Vitrification 2

[2L13] Development of Recovery Process of Platinum-group Metals from HLLW for Stable Production and Volume Reduction of Homogeneous Vitrified Object

(19)UV-Vis/XAFS spectroscopic and first-principles calculation analyses of chemical forms of Ruthenium ion in nitric acid solution

*Toshikazu Sato¹, Yuki Sawada¹, Shinta Watanabe¹, Masato Nakaya¹, Masahito Yoshino², Yusuke Inaba³, Hideharu Takahashi³, Kenji Takeshita³, Tomoko Yoshida⁴, Jun Onoe¹ (1. Nagoya university Department of Materials, Phisics and Energy Engineering, Onoe laboratory, 2. Nagoya university Department of Materials, Phisics and Energy Engineering, Nagasaki laboratory, 3. Tokyo Institute of Technology, Laboratory for Advanced Nuclear Energy, Takeshita laboratory, 4. Osaka city university, Advanced Institute for Natural Science and Technology)

Keywords:Platinum-group metals, First-principles calculation, UV-Vis spectroscopy, XAFS

高レベル放射性廃液ガラス固化プロセスにおける白金族元素PGMs (Ru, Rh, Pd) 及びモリブデン (Mo) 一括回収のためのフェロシアン化物ナノ粒子の吸着特性に関する研究を行っている。本発表では，UV-Vis/XAFS分光実験および第一原理計算解析により，硝酸水溶液中におけるRuの化学形態を調べたので報告する。