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Molecular dynamics simulations of cesium adsorption on illite nanoparticles

Lammers, L.*; Bourg, I. C.*; 奥村 雅彦; Kolluri, K.*; Sposito, G.*; 町田 昌彦

Journal of Colloid and Interface Science, 490, p.608 - 620, 2017/03

 被引用回数:23 パーセンタイル:8.44(Chemistry, Physical)



Surface speciation of Eu$$^{3+}$$ adsorbed on kaolinite by time-resolved laser fluorescence spectroscopy (TRLFS) and parallel factor analysis (PARAFAC)

石田 圭輔*; 斉藤 拓巳*; 青柳 登; 木村 貴海; 永石 隆二; 長崎 晋也*; 田中 知*

Journal of Colloid and Interface Science, 374(1), p.258 - 266, 2012/05

 被引用回数:16 パーセンタイル:49.77(Chemistry, Physical)

Time-resolved laser fluorescence spectroscopy is an effective speciation technique for fluorescent metal ions, which can be further extended by the parallel factor analysis. The adsorption of Eu$$^{3+}$$ on kaolinite as well as gibbsite as a reference mineral was investigated by TRLFS together with batch adsorption measurements. The PAFAFAC modeling provided the fluorescence spectra, decay lifetimes and relative intensity profiles of three Eu$$^{3+}$$ surface complexes with kaolinite; an outer-sphere complex and two inner-sphere complexes. Their intensity profiles qualitatively explained the measured adsorption of Eu$$^{3+}$$. Based on the TRLFS results in varied H$$_{2}$$O/D$$_{2}$$O media, it was shown that the outer-sphere complex exhibited more rapid fluorescence decay than Eu$$^{3+}$$ aquo ion, because of the energy transfer to the surface. Factor B was an inner-sphere complex, which became dominant at relatively high pH, high salt concentration and low Eu$$^{3+}$$ concentration. Its spectrum and lifetime were similar to those of Eu$$^{3+}$$ adsorbed on gibbsite, suggesting its occurrence on the edge face of the gibbsite layer of kaolinite. From the comparison with the spectra and lifetimes of crystalline or aqueous Eu(OH)$$_{3}$$, factor C was considered as a poly-nuclear surface complex of Eu$$^{3+}$$ formed at relatively high Eu$$^{3+}$$ concentration.


Recovery of palladium using chemically modified cedar wood powder

Parajuli, D.; 広田 耕一

Journal of Colloid and Interface Science, 338(2), p.371 - 375, 2009/10

 被引用回数:9 パーセンタイル:72.17(Chemistry, Physical)

Japanese cedar wood powder (CWP) was chemically modified to tertiary amine type adsorbent and studied for the selective recovery of Pd(II) from various industrial waters. Batch adsorption tests were performed from 0.1 M to 5 M HCl and HNO$$_{3}$$ conditions. The maximum loading capacity for Pd(II) studied in 0.1, 1, 3, and 5 M HCl conditions were evaluated as 1.4, 0.81, 0.36, and 0.26 mol/kg, respectively. And in 3 M HNO$$_{3}$$ condition it was 0.6 mol/kg. Recovery of Pd(II) from real industrial solution was also performed where only Pd(II) was selectively loaded on modified CWP and was recovered using acidic thiourea with about 95 % recovery factor and 75 times preconcentration factor. Since, Pd(II) adsorption was found to be better in HNO$$_{3}$$, the possibility of its application on the recovery of Palladium from high level liquid waste (HLW) was also studied. For this, simulated HLW prepared in 3 M HNO$$_{3}$$ was used. The adsorption experiment was conducted in normal and in $$gamma$$ irradiation conditions. Interestingly, selective separation of Pd(II) was achieved with the capacities of 0.47 mol/kg in normal condition and 0.4 mol/kg for adsorption mixture irradiated for 200 h at a dose rate of 10 kGy/h.


Properties of functional polymeric microspheres obtained by radiation polymerization of acrolein

熊倉 稔; 鈴木 美枝子*; 嘉悦 勲

Journal of Colloid and Interface Science, 97(1), p.157 - 165, 1984/00

 被引用回数:11 パーセンタイル:54.71



Stopped-flow spectroscopy as a simple method for particle size determination

江草 茂則

Journal of Colloid and Interface Science, 86(1), p.135 - 143, 1982/00

 被引用回数:9 パーセンタイル:58.6



Characterization of carboxylated latices prepared by radiation-initiated emulsion polymerization; Comparison with chemically prepared latices

江草 茂則; 幕内 恵三

Journal of Colloid and Interface Science, 79(2), p.350 - 364, 1981/00

 被引用回数:19 パーセンタイル:38.83



Radiation-induced polymerization of monomolecular film of octadecyl acrylate at gas-water interface

畑田 元義; 西井 正信; 広田 鋼蔵*

Journal of Colloid and Interface Science, 45(3), p.502 - 506, 1973/03


気/水界面におけるオクタデシルアクリレート(ODA)単分子膜の放射線重合の研究を自記式LANGMUIR型表面圧測定装置を用いて研究した。単分子膜は、窒素/水または空気/水界面においてVan de Graaff加速器の電子線によって照射され、照射前後の表面圧曲線の変化から反応を追跡した。ODA単分子膜は窒素/水界面においては重合してポリオクタデシルアクリレート(PODA)単分子膜の表面圧-面積曲線に似たそれを与えた。一方、空気/水界面においてはPODA単分子膜のそれとは著しく異る表面圧-面積曲線が得られ、PODAを生じないことが見出された。


Determination of the number concentration of aerosol particles by light scattering method with an efficient device

岡田 隆*; 伊藤 和子*; 木谷 進

Journal of Colloid and Interface Science, 42(1), p.88 - 95, 1973/01




Preparation of Monodisperse Aerosols of Dioctyl Phthalate by a New Apparatus

岡田 高志; 木谷 進; H.イシバシ*

Journal of Colloid and Interface Science, 29(4), p.613 - 616, 1969/04




Retention efficiency test of air filter

木谷 進; 本間 克典*

Journal of Colloid and Interface Science, 24(2), p.270 - 271, 1967/00



Preparation of the monodisperse aerosol of sodium chloride

木谷 進; Shoei Ouchi*

Journal of Colloid and Interface Science, 23(2), p.200 - 202, 1967/00



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