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Otaka, Toshiki*; Sato, Tatsumi*; Ono, Shimpei; Nagoshi, Kohei; Abe, Ryoji*; Arai, Tsuyoshi*; Watanabe, So; Sano, Yuichi; Takeuchi, Masayuki; Nakatani, Kiyoharu*
Analytical Sciences, 35(10), p.1129 - 1133, 2019/10
Times Cited Count：9 Percentile：40.49(Chemistry, Analytical)Sano, Yuichi; Watanabe, So; Matsuura, Haruaki*; Nagoshi, Kohei*; Arai, Tsuyoshi*
Journal of Nuclear Science and Technology, 54(10), p.1058 - 1064, 2017/10
Times Cited Count：5 Percentile：37.06(Nuclear Science & Technology)For effective recovery of radioactive elements by adsorbents using polymer-immobilized silica (SiO
-P) supports, the microstructure of SiO-P particles impregnated with CMPO as extractants and their change with the crosslinking degree of polymer (CDP) were investigated using STXM and EXAFS analyses; further, their relation with adsorption/elution behavior was discussed. The adsorption/elution tests using adsorbents with a different CDP demonstrated that a higher CDP inhibited the elution of adsorbed metal ions from the adsorbent. The results of STXM and EXAFS analyses suggested that adsorption by CMPO proceeds through the entire area in the adsorbent and the local structure around adsorbed metal ions is similar irrespective of the CDP. Conversely, STXM analyses implied the capture of eluents such as HO by polymers with high CDP, which suppresses the prompt elution of adsorbed metal ions from the adsorbent.
Abe, Ryoji*; Nagoshi, Kohei*; Arai, Tsuyoshi*; Watanabe, So; Sano, Yuichi; Matsuura, Haruaki*; Takagi, Hideaki*; Shimizu, Nobutaka*; Koka, Masashi*; Sato, Takahiro*
Nuclear Instruments and Methods in Physics Research B, 404, p.173 - 178, 2017/08
Times Cited Count：5 Percentile：44.54(Instruments & Instrumentation)Nagoshi, Kohei*; Arai, Tsuyoshi*; Watanabe, So; Sano, Yuichi; Takeuchi, Masayuki; Sato, Mutsumi*; Oikawa, Hiroshi*
Nihon Ion Kokan Gakkai-Shi, 28(1), p.11 - 18, 2017/01
no abstracts in English
Tanogashira, Yuki*; Nagayoshi, Sanetaka*; Watanabe, Goshi*; Hase, Yoshihiro
JAEA-Review 2015-022, JAEA Takasaki Annual Report 2014, P. 98, 2016/02
no abstracts in English
Nankawa, Takuya; Ogoshi, Yurie; Watanabe, Masayuki
no journal, ,
Removal of cesium by porous materials from various environments has recently attracted much attention because of the Fukushima crisis. The behavior of cesium in the presence of porous materials, such as Cs uptake selectivity and permeability, may depend on the sizes of porous materials but the relationship is not revealed yet because controlling the pore sizes were difficult. On the other hand, Metal-organic framework (MOF) materials that have highly-ordered pore and the pores sizes of which can be controlled by selecting appropriate ligands and metals have been investigated in these two decades. We synthesized novel lanthanide-organic framework containing cesium ions with the formula of LnCs(ox) (Ln = La, Eu, Tb, Er, Yb, Lu), the pore sizes of which can be precisely controlled by changing lanthanide ions, to investigate the relationship between Cs permeability and pore sizes.
carrier"Nagoshi, Kohei*; Arai, Tsuyoshi*; Ono, Shimpei*; Watanabe, So; Sano, Yuichi; Takeuchi, Masayuki
no journal, ,
no abstracts in English
Nagoshi, Kohei*; Arai, Tsuyoshi*; Watanabe, So; Sano, Yuichi; Takeuchi, Masayuki; Sato, Mutsumi*; Oikawa, Hiroshi*
no journal, ,
In this study, we carried out various surface treatment to change the polarity of N,N,N',N'-tetraoctyldiglycolamide (TODGA) adsorbent used in this process, and evaluated its adsorption performance.
Otaka, Toshiki*; Sato, Tatsumi*; Nakatani, Kiyoharu*; Nagoshi, Kohei*; Abe, Ryoji*; Arai, Tsuyoshi*; Watanabe, So; Sano, Yuichi; Takeuchi, Masayuki
no journal, ,
no abstracts in English
Sakurai, Tomoaki*; Nagoshi, Kohei*; Arai, Tsuyoshi*; Watanabe, So; Sano, Yuichi; Takeuchi, Masayuki
no journal, ,
no abstracts in English
Pe, E.*; Abe, Ryoji*; Nagoshi, Kohei*; Arai, Tsuyoshi*; Watanabe, So; Sano, Yuichi; Takeuchi, Masayuki
no journal, ,
no abstracts in English
Pe, E.*; Arai, Tsuyoshi*; Watanabe, So; Sano, Yuichi; Takeuchi, Masayuki; Nagoshi, Kohei; Abe, Ryoji*
no journal, ,
no abstracts in English
