Synthesis of graft polymerization-type porous silica adsorbent with IDA group and evaluation of adsorption performance using micro-PIXE analysis

グラフ技重合技術によりIDA基を導入した多孔質シリカ吸着材の合成とマイクロPIXE分析による吸着性評価

荒井 陽一  ; 渡部 創  ; 大野 真平; 中村 雅弘  ; 柴田 淳広  ; 中村 文也*; 新井 剛*; 瀬古 典明*; 保科 宏行*; 福元 博基*; 吾郷 友宏*; 久保田 俊夫*

Arai, Yoichi; Watanabe, So; Ono, Shimpei; Nakamura, Masahiro; Shibata, Atsuhiro; Nakamura, Fumiya*; Arai, Tsuyoshi*; Seko, Noriaki*; Hoshina, Hiroyuki*; Fukumoto, Hiroki*; Ago, Tomohiro*; Kubota, Toshio*

The spent PUREX solvent containing U and Pu is generated from the reprocessing process of spent nuclear fuel. The nuclear material removal is important for the safety storage or disposal of the spent solvent. Our previous study revealed that the adsorbent with the iminodiacetic acid (IDA) functional group is one of the most promising materials for designing the nuclear material recovery process. Accordingly, an IDA-type adsorbent was synthesized by using the graft polymerization technology to improve the adsorption rate and capacity. The synthesized IDA-type adsorbent was characterized by micro particle-induced X-ray emission (PIXE) analyses. The micro-PIXE analysis revealed that Zr was adsorbed on the whole synthesized adsorbents and quantified the microamount of adsorbed Zr.