JOPSS - Search Results

Okamura, Hiroyuki; Sakae, Hiroki*; Kidani, Keiji*; Hirayama, Naoki*; Aoyagi, Noboru; Saito, Takumi*; Shimojo, Kojiro; Naganawa, Hirochika; Imura, Hisanori*

Polyhedron, 31(1), p.748 - 753, 2012/01

https://doi.org/10.1016/j.poly.2011.10.031

Times Cited Count：28 Percentile：87.66(Chemistry, Inorganic & Nuclear)

Oral presentation

Study on the surface complexes of Eu(III) on kaolinite by time-resolved laser induced fluorescence spectroscopy; Fluorescence measurement in H $_{2}$ O/D $_{2}$ O systems

Ishida, Keisuke*; Saito, Takumi*; Tanaka, Satoru*; Kimura, Takaumi

no journal, ,

no abstracts in English

Oral presentation

Complexation of Eu $^{3+}$ with humic substances studied by time-resolved laser fluorescence spectroscopy and parallel factor analysis

Saito, Takumi*; Lukman, S.*; Aoyagi, Noboru; Kimura, Takaumi; Nagasaki, Shinya*

no journal, ,

Oral presentation

Effective extraction of strontium(II) into an ionic liquid by cooperative intramolecular interaction

Okamura, Hiroyuki; Shimojo, Kojiro; Ikeda, Atsushi*; Saito, Takumi*; Aoyagi, Noboru; Hirayama, Naoki*; Umetani, Shigeo*; Imura, Hisanori*; Naganawa, Hirochika

no journal, ,

Oral presentation

Sorption of Co $^{2+}$ on Mn oxides produced by MnO $_{4}$ $^{-}$ reduction using biomass

Kato, Tomoaki; Onuki, Toshihiko; Saito, Takumi*; Yu, Q.

no journal, ,

In order to remediate radioactive Co in aqueous solution, biomass Mn oxides is tested to accumulate Co. Amount of the accumulated Co was higher in equivalent ratio than Zn. This is resulted from the oxidative sorption of Co $^{2}$ ; to Co $^{3+}$ .

Oral presentation

Characterization and thermodynamic study of the protonation of humic acid dissolved in deep groundwater at Horonobe, Hokkaido, Japan

Kimuro, Shingo*; Kirishima, Akira*; Akiyama, Daisuke*; Sato, Nobuaki*; Nagao, Seiya*; Saito, Takumi*; Amano, Yuki; Miyakawa, Kazuya

no journal, ,

In this study, size exclusion chromatography (SEC), flow-field flow fractionation (Fl-FFF) and calorimetry were applied to the humic acid isolated from the groundwater collected at 350m below the ground level at the Horonobe Underground Research Laboratory, JAEA. First, the characteristic molecular weight distribution of Horonobe humic acids were observed from the SEC analysis. Second, the small hydrodynamic diameter of Horonobe humic acids were observed by the Fl-FFF. Finally, the protonation enthalpies of Horonobe humic acids were determined by the combination of potentiometry and calorimetry. The values of protonation enthalpy of Horonobe humic acids were close to simple organic acids (i.e., benzoic acid and phenol). It was suggested that Horonobe humic acids have lower molecular weight than IHSS surface soil humic acids (Elliot Soil and Waskish Peat) and the simple protonation mechanism, which is not affected by the heterogeneity.

Oral presentation

High-temperature gas-solid interaction of calcium silicate insulation with cesium hydroxide

Rizaal, M.; Nakajima, Kunihisa; Osaka, Masahiko; Saito, Takumi*; Okamoto, Koji*

no journal, ,

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Characterization and thermodynamic study of humic acid in deep groundwater at Horonobe, Hokkaido, Japan

Comprehensive extraction study using ,-dioctyldiglycolamic acid

Highly efficient extraction separation of lanthanides using a diglycolamic acid extractant

Laser-induced fluorescence and infrared spectroscopic studies on the specific solvation of tris(1-(2-thienyl)-4,4,4-trifluoro-1,3-butanedionato)europium(III) in an ionic liquid

Study on the surface complexes of Eu(III) on kaolinite by time-resolved laser induced fluorescence spectroscopy; Fluorescence measurement in H $_{2}$ O/D $_{2}$ O systems

Complexation of Eu $^{3+}$ with humic substances studied by time-resolved laser fluorescence spectroscopy and parallel factor analysis

Effective extraction of strontium(II) into an ionic liquid by cooperative intramolecular interaction

Sorption of Co $^{2+}$ on Mn oxides produced by MnO $_{4}$ $^{-}$ reduction using biomass

Characterization and thermodynamic study of the protonation of humic acid dissolved in deep groundwater at Horonobe, Hokkaido, Japan

High-temperature gas-solid interaction of calcium silicate insulation with cesium hydroxide