KINDAI UNIVERSITY


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NOGAMI Masanobu

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FacultyDepartment of Electric and Electronic Engineering / Graduate School of Science and Engineering Research / Atomic Energy Research Institute
PositionProfessor
Degree
Commentator Guidehttps://www.kindai.ac.jp/meikan/261-nogami-masanobu.html
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Last Updated :2020/09/30

Education and Career

Academic & Professional Experience

  •   2016 04 ,  - 現在, Professor, Department of Electric and Electronic Engineering, Faculty of Science and Engineering, Kindai University
  •   2010 04 ,  - 2016 03 , Associate Professor, Department of Electric and Electronic Engineering, Faculty of Science and Engineering, Kindai University
  •   2007 04 ,  - 2010 03 , Researcher, Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology
  •   2001 04 ,  - 2007 03 , Research Scientist, Kashiwa Laboratory, Nuclear Chemistry and Chemical Engineering Center, Institute of Research and Innovation
  •   2004 10 ,  - 2005 03 , MEXT project staff, Belgian Nuclear Centre (SCK-CEN)
  •   1996 10 ,  - 2001 03 , Researcher, Kashiwa Laboratory, Nuclear Chemistry and Chemical Engineering Center, Institute of Research and Innovation

Research Activities

Research Areas

  • Energy, Nuclear engineering

Research Interests

  • Gamma-ray, Chelating resins, Recovery of uranium from seawater, Separation of radionuclides, Monoamide compounds, Treatment of radioactive wastes, Reprocessing of nuclear fuels

Published Papers

  • Crown Ether-type Organic Composite Adsorbents Embedded in High-porous Silica Beads for Simultaneous Recovery of Lithium and Uranium in Seawater, Y. Tachibana, M. Tanaka, M. Nogami, J. Radioanal. Nucl. Chem., J. Radioanal. Nucl. Chem., 322(2), 717 - 730, Feb. 2019 , Refereed
  • Syntheses of Tannic Acid-type Organic Composite Adsorbents for Simultaneous Removal of Various Types of Radionuclides in Seawater, Y. Tachibana, T. Suzuki, M. Nogami, M. Nomura, T. Kaneshiki, J. Radioanal. Nucl. Chem., J. Radioanal. Nucl. Chem., 318(1), 429 - 437, Oct. 2018 , Refereed
  • Selective Lithium Recovery from Seawater Using Crown Ether Resins, Y. Tachibana, T. Suzuki, M. Nogami, M. Nomura, T. Kaneshiki, J. Ion Exchange, J. Ion Exchange, 29(3), 90 - 96, 2018 , Refereed
  • Correlation between Intermolecular Hydrogen Bonds and Melting Points of Uranyl Nitrate Complexes with Cyclic Urea Derivatives, T. Suzuki, K. Takao, T. Kawasaki, M. Harada, M. Nogami, Y. Ikeda, Polyhedron, Polyhedron, 96, 102 - 106, Jun. 2015 , Refereed
  • Extraction Behavior of Phenyl-substituted Phosphine Oxides for Some Fission Product Elements, M. Nogami, M. Hashimoto, Y. Sasaoka, R. Tanabe, H. Satou, Energy Procedia, Energy Procedia, 71, 123 - 129, Jun. 2015 , Refereed
  • Precise Determination of Precipitation Yield of Uranyl Nitrate with N-alkylated 2-pyrrolidone Derivatives, K. Takao, Y. Kawata, M. Nogami, M. Harada, Y. Morita, K. Nishimura, Y. Ikeda, J. Nucl. Sci. Technol., J. Nucl. Sci. Technol., 52(2), 294 - 298, Feb. 2015 , Refereed
  • A study on Selective Precipitation of U(VI) by Hydrophilic Cyclic Urea Derivatives for Development of a Reprocessing System Based on Precipitation Method, T. Suzuki, K. Takao, T. Kawasaki, M. Harada, M. Nogami, Y. Ikeda, J. Nucl. Sci. Technol., J. Nucl. Sci. Technol., 51(4), 514 - 520, Apr. 2014 , Refereed
  • Adsorptivity of Novel Cyclic Monoamide Resin for Selective Separation of U(VI) in Nitric Acid Media, M. Nogami, T. Nishida, N. Miyata, Energy Procedia, Energy Procedia, 39, 96 - 101, Sep. 2013 , Refereed
  • A study on selective precipitation ability of cyclic urea to U(VI) for developing reprocessing system based on precipitation method, T. Suzuki, T. Kawasaki, K. Takao, M. Harada, M. Nogami, Y. Ikeda, J. Nucl. Sci. Technol., J. Nucl. Sci. Technol., 49(10), 1010 - 1017, Oct. 2012 , Refereed
  • Stability of pyrrolidone derivatives against gamma-ray irradiation, Masanobu Nogami, Yuichi Sugiyama, Takeshi Kawasaki, Masayuki Harada, Yoshihisa Kawata, Yasuji Morita, Toshiaki Kikuchi, Yasuhisa Ikeda, SCIENCE CHINA-CHEMISTRY, SCIENCE CHINA-CHEMISTRY, 55(9), 1739 - 1745, Sep. 2012 , Refereed
    Summary:To evaluate the stability of N-alkylated pyrrolidone derivatives (NRPs), which are supposed to be used as precipitants for U(VI) and Pu(IV, VI) species in HNO3 media, under irradiation environment, some candidate NRPs were irradiated by gamma-ray. Irradiation to HNO3 solutions up to 6 mol dm(-3) (= M) containing 2 M N-n-butyl-2-pyrrolidone (NBP), one of NRPs with lower hydrophobicity, has revealed that the residual ratios of NBP in the samples of HNO3 up to 3 M decreased identically and linearly. Approximately 20% of NBP was found to be degraded after the irradiation at 1 MGy. It was also found that the decrease in the precipitation ratio of UO2 (2+) (P.R., %) was gentle and that the P.R. values were relatively in accordance with the residual ratios of NBP. On the other hand, the degradation of the samples irradiated in 6 M HNO3 was found more distinguished. It was proposed from the analyses of degraded compounds that the degradation of NBP in HNO3 by gamma-ray irradiation started from the cleavage of the pyrrolidone ring by the addition of oxygen atom originating from HNO3, followed by the formation of chain compounds by the successive addition of oxygen, leading to the generation of oxalic acid and acetic acid. The stability of other NRPs in 3 M HNO3 was evaluated to be nearly identical with that of NBP except lower P.R. values of the samples containing NRPs with higher hydrophobicity irradiated at more than 0.5 MGy.
  • Selective extraction of perrehnate anion in nitric acid solution using 2,2 '-(methylimino)bis(N,N '-diethylacetamide) as an extractant, Mohammad C. Ali, Takeshi Kawasaki, Masanobu Nogami, Morihisa Saeki, Yuji Sasaki, Yasuhisa Ikeda, PROGRESS IN NUCLEAR ENERGY, PROGRESS IN NUCLEAR ENERGY, 53(7), 1005 - 1008, Sep. 2011 , Refereed
    Summary:In order to examine extraction behavior of ReO(4)(-) from HNO(3) aqueous solution to dichloromethane containing 2,2'-(methylimino)bis(N,N-diethylacetamide) (MIDEA) as an extractant, we have measured distribution ratios (D) by changing [HNO(3)] under constant [MIDEA] (1.064 x 10(-1) M, M = mol dm(-3)) in CH(2)Cl(2) and also by changing [MIDEA] in CH(2)Cl(2) under constant [HNO(3)] (0.1 M) and (0.2 M). As a result, it was found that the D values decrease with an increase in [HNO(3)] and increase with increasing [MIDEA]. The decrease in D values with increasing [HNO(3)] is considered to be due to the effect of acid extraction with MIDEA. A plot of log D values against log [MIDEA] was found to show the linear relationship with slope of ca. 1.1. This result suggests that one MIDEA molecule contributes to the extraction of ReO(4)(-), i.e., 1:1 complex. This is supported by the fact that the ReO(4)(-) species extracted from HNO(3) solution to CH(2)Cl(2) phase containing MIDEA is assigned as [C(13)H(28)O(2)N(3)(+)][ReO(4)(-)] by the single crystal x-ray analysis. (C) 2011 Elsevier Ltd. All rights reserved.
  • Development of Advanced Reprocessing System Based on Precipitation Method Using Pyrrolidone Derivatives as Precipitants - Precipitation Behavior of U(VI), Pu(IV), and Pu(VI) by Pyrrolidone Derivatives with Low Hydrophobicity -, Y. Morita, K. Takao, S.-Y. Kim, Y. Kawata, M. Harada, M. Nogami, K. Nishimura, Y. Ikeda, J. Nucl. Sci. Technol., J. Nucl. Sci. Technol., 46(12), 1129 - 1136, Dec. 2009 , Refereed
  • Solubility of Uranyl Nitrate Precipitates with N-Alkyl-2-pyrrolidone Derivatives (Alkyl = n-Propyl, n-Butyl, iso-Butyl, and Cyclohexyl), K. Takao, K. Noda, M. Nogami, Y. Sugiyama, M. Harada, Y. Morita, K. Nishimura, Y. Ikeda, J. Nucl. Sci. Technol., J. Nucl. Sci. Technol., 46(10), 995 - 999, Oct. 2009 , Refereed
  • Extraction of Uranium(VI) from Nitric Acid Using Pyrrolidone Derivatives, Y. Takahashi, H. Hotokezaka, K. Noda, M. Nogami, Y. Ikeda, J. Nucl. Sci. Technol., J. Nucl. Sci. Technol., 46(8), 787 - 792, Aug. 2009 , Refereed
  • Molecular structures and redox properties of oxorhenium(V) '3+1' mixed ligand complexes with heterocyclic thiolates containing nitrogen, Shubhamoy Chowdhury, Masanobu Nogami, Ali Canlier, Nobuyoshi Koshino, Yasuhisa Ikeda, INORGANICA CHIMICA ACTA, INORGANICA CHIMICA ACTA, 361(5), 1524 - 1529, Apr. 2008 , Refereed
    Summary:Reactions of chloro(3-thiapentane-1,5-dithiolato) oxorhenium(V) [ReO(SSS)Cl] with N-methyl-1H-imidazole-2-thiol (HL(1)) and 2pyrimidinethiol (HL(2)) have been studied to form '3+1' oxorhenium(V) complexes. In the absence of triethylamine, [Re(SSS)(HL(1))] Cl (1a) was formed, while in the presence of triethylamine [Re(SSS) L(1)] (1b) and [ Re( SSS) L 2] ( 2) were produced. Molecular structures of complexes 1a and 2 were determined to be distorted square pyramidal by single crystal X-ray analytical method. From cyclic voltammetric studies, furthermore, it was proposed that complexes 1b and 2 are irreversibly oxidized to Re( VI) at around 0.84 and 1.01 V versus Ag/AgNO(3), respectively, and are reduced to Re(IV) at -1.55 and -1.51 V with the dissociation of L 1 or L 2, followed by the quasi-reversible reductions to Re(III) at around -1.69 V, respectively. (c) 2007 Elsevier B. V. All rights reserved.
  • Electrochemical Properties of Uranyl Ion in Ionic Liquids as Media for Pyrochemical Reprocessing, N. Asanuma, M. Harada, Y. Yasuike, M. Nogami, K. Suzuki, Y. Ikeda, J. Nucl. Sci. Technol., J. Nucl. Sci. Technol., 44(3), 368 - 372, Mar. 2007 , Refereed
  • Anodic Dissolution of UO2 Pellet Containing Simulated Fission Products in Ammonium Carbonate Solution, N. Asanuma, M. Harada, M. Nogami, K. Suzuki, T. Kikuchi, H. Tomiyasu, Y. Ikeda, J. Nucl. Sci. Technol., J. Nucl. Sci. Technol., 43(3), 255 - 262, Mar. 2006 , Refereed
  • Characterization of Ternary Bivalent Metal Complexes with Bis(2-hydroxyethyl)iminotris(hydroxymethyl)methane (Bis - Tris) and the Comparison of Five Crystal Structures of Bis - Tris Complexes, Y. Inomata, Y. Gochou, M. Nogami, F. S. Howell, T. Takeuchi, J. Mol. Struct., J. Mol. Struct., 702, 61 - 70, Sep. 2004 , Refereed
  • Decomposition of Oxalate in Low-level Liquid Waste Using UV Irradiation, M. Nogami, T. Sakashita, K. Suzuki, Y. Ikeda, J. Nucl. Sci. Technol., Supplement, J. Nucl. Sci. Technol., Supplement, 3, 371 - 374, Nov. 2002 , Refereed
  • Complex Formation of U(VI) with Benzamidoxime in Non-aqueous Solvents, Y.-Y. Park, S.-Y. Kim, J.-S. Kim, M. Harada, H. Tomiyasu, M. Nogami, Y Ikeda, J. Nucl. Sci. Technol., J. Nucl. Sci. Technol., 37(4), 344 - 348, Apr. 2000 , Refereed
  • Pyridine-type Anion Exchange Resin Selectivity of some Metal Elements in Methanol-Hydrochloric Acid Mixed Media, R. M. Nur, M. Aida, S.-H. Kim, Y. Fujii, M Nogami, J. Ion Exchange, J. Ion Exchange, 10(3), 89 - 96, Sep. 1999 , Refereed
  • Adsorption Behaviour of Some Actinide and Lanthanide Elements on Pyridine-type Anion Exchange Resin from Hydrochloric Acid Solution, R. M. Nur, M Nogami, Y. Fujii, T. Mitsugashira, J. Nucl. Sci. Technol., J. Nucl. Sci. Technol., 36(8), 707 - 709, Aug. 1999 , Refereed
  • Adsorption Behavior of U(VI), Pu(IV), and Am(III) Species on Styrene Divinylbenzene Copolymer Particles Impregnated with Dihexyl-N,N-diethylcarbamoylmethylphosphonate, M. Nogami, T. Sakashita, C. Mason, R. Bush, Y. Ikeda, J. Nucl. Sci. Technol., J. Nucl. Sci. Technol., 35(12), 966 - 969, Dec. 1998 , Refereed
  • Simultaneous removal of various iodine species in aqueous solutions of high salt concentrations using novel functional adsorbents, Yu Tachibana, Masanobu Nogami, Masao Nomura, Tatsuya Suzuki, JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 307(3), 1911 - 1918, Mar. 2016 , Refereed
    Summary:Novel tannic acid-type resin combined with benzimidazole-type anion-exchange resins embedded in high-porous silica beads, named improved tannic acid (ITA)-type resin was synthesized successfully and the adsorption behavior of iodine and iodide species on the synthesized resin have been studied in several types of seawater at a temperature range of 278-318 K, compared with those of some typical resins. We have confirmed that ITA can strongly adsorb iodine and iodide species. From these results, we have proposed that the synthesized ITA is suitable for selective removal of radioactive iodine and iodide species in contaminated seawater containing radioactive nuclides.
  • Adsorptivity of various metal ions onto benzo-18-crown-6 and dibenzo-18-crown-6 resins, Masanobu Nogami, Tomohiro Haratani, Yu Tachibana, Toshitaka Kaneshiki, Masao Nomura, Tatsuya Suzuki, JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 303(2), 1549 - 1553, Feb. 2015 , Refereed
    Summary:Adsorptivity of metal ions onto silica-supported benzo-18-crown-6 (B18C6) and dibenzo-18-crown-6 (DB18C6) resins was investigated in nitric acid and hydrochloric acid media to evaluate the applicability of these resins for selective separation of nuclides from radioactive waste solutions. Both resins adsorbed Pd(II) and Ag(I) from HNO3, and Fe(III) and Ba(II) from HCl. It was also found that the B18C6 and DB18C6 resins adsorbed Sr(II) from HCl and Ca(II) from HNO3, respectively. This indicates that the two resins adsorb metal ions with smaller cationic diameters with different selectivity. This behavior is different from other impregnated adsorbents and extractants containing the 18-crown-6 moiety.
  • Synthesis and adsorptivity of acryloylmorpholine resin to various fission product elements in nitric acid media, Tetsuhiro Nishida, Shotaro Tanaka, Masanobu Nogami, SCIENCE CHINA-CHEMISTRY, SCIENCE CHINA-CHEMISTRY, 57(11), 1459 - 1463, Nov. 2014 , Refereed
    Summary:A novel silica-supported resin with a cyclic monoamide of polymerized 4-acryloylmorpholine (Silica-AM) was synthesized, and adsorptivity to metal ions of major fission products (FP) was examined in HNO3 and HCl solutions. Silica-AM has a carbonyl oxygen atom outside of the 6-membered morpholine ring, and a cyclic structure that is different than other cyclic monoamide resins we have studied. These include polyvinylpolypyrrolidone (PVPP) and poly-N-vinyl-E >-caprolactam (VEC), both of which have coordinative carbonyl groups included in the ring. Silica-AM was similar to a cyclic monoamide we have reported because it exhibited adsorption to Pd(II) and Re(VII) in HNO3 of a particularly low concentration range. Silica-AM has an ether oxygen atom included in the ring as well. Considering the difference in the chemical structures of Silica-AM and other cyclic monoamide resins, it was suggested that oxygen atoms in the carbonyl group and in ether may be main contributors to Silica-AM's respective adsorptions to Pd(II) and Re(VII), and Mo(VI) and Zr(IV). Our results imply that the contribution of the two types of oxygen atoms to adsorption is more observable in an HCl system. The contribution of the ether oxygen atom to the adsorption of Pd(II) was also suggested from our study on crystal prepared from 4-acetylmorpholine and palladium nitrate.
  • Removal of boron from the bittern solution of lake qarun water by electrically assisted ion exchange, Ibrahim Ismail, Omar Abdel-Salam, Fatma Barakat, Seif Fateen, Ahmed Soliman, Masanobu Nogami, Portugaliae Electrochimica Acta, Portugaliae Electrochimica Acta, 32(2), 125 - 136, 2014 , Refereed
    Summary:In this study, we investigated the use of ion exchange processes using a chelating resin, Diaion CRB02 for the removal of boron from the bittern solution left after the extraction of sodium sulfate and sodium chloride from the water of Lake Qarun, located in Egypt. The effects of parameters such as the initial boron concentration and the pH value on the breakthrough volume were studied using boric acid as the synthetic simulant of the bittern solution. The breakthrough capacity was shown to be directly proportional to the height of the resin bed and inversely proportional to the initial boron concentration and the feed flow rate. In addition, the optimum pH for boron removal was found to be 10. An electrically assisted process, which had been found to be effective for a strongly acidic cation exchange resin, was also applied to the ion exchange by taking the electric current as a parameter. However, no remarkable effect was observed, which may result from the difference in the function group between an ion exchange resin using electrostatic attractive force and a chelating resin using complex formation.
  • Stability of polyvinylpolypyrrolidone against gamma-ray irradiation in HNO3 media, M. Nogami, Y. Sugiyama, T. Kawasaki, M. Harada, Y. Kawata, Y. Morita, T. Kikuchi, Y. Ikeda, JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 296(1), 423 - 427, Apr. 2013 , Refereed
    Summary:Polyvinylpolypyrrolidone (PVPP) is a resin with adsorption selectivity for U(VI) in HNO3 media. The stability of this resin has been examined against gamma-ray irradiation using HNO3 solutions of various concentrations. Samples of PVPP immersed in HNO3 solutions up to 6 mol center dot dm(-3) (=M) were irradiated by a Co-60 source at 3.6 kGy center dot h(-1) to reach 0.90 MGy at room temperature under ambient atmosphere. As a result, no clear decrease in the capacity for U(VI) when added in 3 M HNO3 was observed for any samples, or rather the capacity was found to increase by approximately 50 % for PVPP irradiated in 6 M HNO3. It was indicated from some spectroscopic analyses of the irradiated samples that the irradiation causes the cleavage of the pyrrolidone ring of PVPP. This occurs by the addition of an oxygen atom originating from HNO3, followed by the formation of straight-chain groups with multiple coordinative atoms by the successive addition of oxygen, finally leading to the generation of a primary-amine-type weakly-basic anion exchange resin. The increase in the U(VI) capacity would be due to the formation of the straight-chain groups. However, such structural changes were not observed by heating at 323 K in up to 6 M HNO3 for 20 days. Thus, it was shown that PVPP is a heat-resistant resin.
  • Effect of Pd(II) Species on Decomposition Reactions of Pyrrolidone Derivatives by Ozone, Yu Tachibana, Masanobu Nogami, Yuichi Sugiyama, Yasuhisa Ikeda, OZONE-SCIENCE & ENGINEERING, OZONE-SCIENCE & ENGINEERING, 34(5), 359 - 369, 2012 , Refereed
    Summary:Decomposition reactions of N-dimethylpropyl-2-pyrrolidone (NDPP), which is one of pyrrolidone derivatives (NRPs), by O-3 have been examined in aqueous sulfuric acid solutions containing metal ions (Fe(II), Rb(I), Sr(II), Ba(II), La(III), Ce(III), Pr(III), Nd(III), Sm(III), Y(III), Zr(IV), Ru(III), Rh(III), Pd(II), Mo(VI), Re(VII), and Te(VI)), respectively, under conditions, pH = 2.0 and Temp. = 298 K. It was found that Pd(II) ion has the highest efficacy for the decomposition of NDPP. Hence, the effect of Pd(II) ion on the decomposition reactions of NRPs (NDPP, N-neopentyl-2-pyrrolidone (NNPP), and N-n-pentyl-2-pyrrolione (NPP)) by O-3 has been studied kinetically under conditions, pH = 1.0-3.5 and Temp. = 288 K. As a result, it was found that the decomposition reactions of NRPs by O-3 in the system containing Pd(II) ion (abbreviated as NRPs/Pd(II)/O-3 reactions) are independent on concentrations of H+ ([H+]) and proceed through two paths, one is the path depending on [Pd(II)] and the dissolved O-3 concentration ([O-3] D), and another is the path depending on only [O-3] D. Furthermore, it was confirmed that the 1:1 complex is formed, Pd(II) + NRPs (sic) [Pd(NRPs)](2+), under the conditions [NRPs](T)/[Pd(II)](T) = 1 similar to 12 (subscript T means total concentration), and that the stability constants (K-1) for [Pd(NRPs)](2+) are also evaluated as 37.8 +/- 0.46, 9.33 +/- 0.15, and 1.63 +/- 0.11 M-1 for NPP, NDPP, and NNPP, respectively. Based on these results, it was found that the reaction rate is expressed as -d[NRPs]/dt = k(a)K(1)[O-3] (D)[NRPs][Pd(II)](T) + k(b)[O-3](D)[NRPs] (k(a): rate constants for the reactions between [Pd(NRPs)](2+) and O-3, k(b): rate constants for the reactions between NRPs and O-3, K-1: stability constants for [Pd(NRPs)](2+)), and that the k(a) values are (6.03 +/- 0.69) x 10(3), (4.33 +/- 0.21) x 10(3), and (7.61 +/- 0.23) x 10(3) M-1 s(-1) for NPP, NDPP, and NNPP, respectively. From these results, it was proposed that the path depending on [Pd(II)] in the NRPs/Pd(II)/O-3 reactions proceeds through the attack of O-3 to [Pd(NRPs)](2+).
  • Precipitation ability to U(IV) and stability of 1,3-dimethyl-2-imidazolidone for selective precipitation of U(VI) in nitric acid media, Masanobu Nogami, Masayuki Harada, Yuichi Sugiyama, Takeshi Kawasaki, Yoshihisa Kawata, Yasuji Morita, Toshiaki Kikuchi, Yasuhisa Ikeda, PROGRESS IN NUCLEAR ENERGY, PROGRESS IN NUCLEAR ENERGY, 53(7), 948 - 951, Sep. 2011 , Refereed
    Summary:As a part of the investigation of precipitants with selectivity to U(VI) in nitric acid media, a preliminary study on the precipitation ability of 1,3-dimethyl-2-imidazolidone (DMI) to U(IV), a simulant of Pu(IV), was performed. DMI is a ring compound like N-n-butyl-2-pyrrolidone (NBP) which is one of the pyrrolidone derivatives (NRPs) and a promising precipitant for U(VI). While DMI is known to precipitate U(VI) from 3 mol dm(-3) (=M) HNO(3), no precipitate was observed in the solution containing 0.15 M U(IV) and 3 M HNO(3) by adding DMI at the ratio of [DMI]/[U(IV) = 5. This indicates that the selectivity of DMI to U(VI) than U(IV) is much higher compared with that of NBP. On the other hand, the stability of DMI under gamma-ray irradiation and heating in HNO(3) solutions (<= 4 M) was also examined to evaluate the applicability of DMI to the practical process, because gradual acid hydrolysis of DMI is inevitable due to the nature of the chemical structure. As a result, it was found that the stability is strongly affected by the concentration of HNO(3). Namely, very few DMI in 2 M HNO(3) underwent the ring-opening by the irradiation up to 220 kGy and heating at 50 degrees C up to 5 h, respectively, indicating that these treated samples may still hold the precipitation ability to U(VI). On the contrary, the cleavage of the ring of DMI in 4 M HNO(3) was found to proceed easily. From the above results, it was concluded that DMI may be a candidate as a selective precipitant for U(VI) in HNO(3) solutions up to ca. 2 M. (C) 2011 Elsevier Ltd. All rights reserved.
  • Kinetic and Mechanistic Studies on Reactions of Pyrrolidone Derivatives with Ozone, Yu Tachibana, Masanobu Nogami, Yuichi Sugiyama, Yasuhisa Ikeda, OZONE-SCIENCE & ENGINEERING, OZONE-SCIENCE & ENGINEERING, 33(6), 470 - 482, 2011 , Refereed
    Summary:Reactions of various pyrrolidone derivatives (NRPs = 2-pyrrolidone (2P), N-methyl-2-pyrrolidone (NMP), N-ethyl-2-pyrrolidone (NEP), N-n-propyl-2-pyrrolidone (NProP), N-n-butyl-2-pyrrolidone (NBP), N-iso-butyl-2-pyrrolidone (NiBP), N-n-pentyl-2-pyrrolidone (NPP), N-neopentyl-2-pyrrolidone (NNPP), N-dimethylpropyl-2-pyrrolidone (NDPP), N-cyclohexyl-2-pyrrolidone (NCP)) with O(3) have been studied under pseudo-first-order conditions with excess O(3) in aqueous solution of pH 2.0 at various temperatures (278-298 K). It was found that the reaction rates is expressed as -d[NRPs]/dt = k[NRP][O(3)], that the second-order rate constants (k) slightly increase with increasing the effective charges in order of NMP, NEP, NProP, NBP and NPP, and that the k values of NBP and NPP are larger than those of more bulky NiBP and more bulky NNPP and NDPP, respectively. In these reactions, the Delta H(double dagger) values are consistent with each other, while the Delta S(double dagger) values decrease with decreasing length of alkyl groups. Furthermore, it was found that reactions of NRPs (NMP, NEP, NProP, NBP, and NPP) with O(3) show the linear relationship between the obtained Delta S(double dagger) values and the softness of NRPs. From these results, it was proposed that the reactions of NRPs with O(3) proceed through the interaction between O(3) and N atom of NRPs. The analyses of products in the reactions of NRPs with O(3) were also carried out by (13)C-NMR and GC/MS measurements, and indicated that N-alkylsuccinimide and N-acyl-2-pyrrolidone are produced through intramolecular side-chain oxidations of a-carbon of NRPs. From these results, it is proposed that the reactions of NRPs with O(3) proceed through the mechanism with the selective attacks of O(3) to N atom of NRPs.
  • Adsorptivity of silica-supported adsorbents impregnated with polyphosphine polyoxides to U(VI) and some other metal ions in nitric acid media, Masanobu Nogami, Yuichi Sugiyama, Yasuhisa Ikeda, JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 284(1), 195 - 199, Apr. 2010 , Refereed
    Summary:For the selective extraction of radionuclides from nitrate media, the extraction properties of organopolyphosphine polyoxides were examined in the form of impregnated adsorbents. It was found that the extraction property of 1,1,3,5,5-pentaphenyl-1,3,5-triphosphapentane trioxide (PPTPT) for U(VI) is quite unusual with very high values of the distribution ratio in nitric acid solutions of both low and high concentration ranges, which is not observed for other types of extractants. From the extraction properties for other metal ions, this type of extracant may be promising for the selective extraction of U(VI) from HNO(3) of very low and high concentrations.
  • Adsorptivity of polyvinylpolypyrrolidone for selective separation of U(VI) from nitric acid media, M. Nogami, Y. Sugiyama, T. Kawasaki, M. Harada, Y. Morita, T. Kikuchi, Y. Ikeda, JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 283(2), 541 - 546, Feb. 2010 , Refereed
    Summary:Adsorptivity of polyvinylpolypyrrolidone (PVPP), a candidate resin with selectivity to U(VI) in HNO(3) media, to various metal ions was examined. It was found that PVPP has a strong adsorptivity to U(VI) in wide concentration range of HNO(3). The Scatchard plot analysis revealed that the adsorption of U(VI) by PVPP occurs at plural binding sites. The infrared spectroscopic analysis suggested that the strong binding site is due to the coordination of the carbonyl oxygen atom and the nitrogen atom in the pyrrolidone ring to UO(2) (2+). It was also found that fission product ions except Re(VII) as the simulant of Tc(VII) and Pd(II) are not adsorbed onto PVPP. The adsorptivities to Tc(VII) and Pd(II) species are weak, indicating that U(VI) can be separated from other metal ions by PVPP.
  • Adsorptivity of silica-supported monoamide resins to U(IV) in nitric acid media, Masanobu Nogami, Yuichi Sugiyama, Yasuhisa Ikeda, JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 283(1), 177 - 180, Jan. 2010 , Refereed
    Summary:As a part of the development of resins with selectivity to U(VI) in HNO(3) media, adsorptivities of U(IV) onto some silica-supported monoamide resins in HNO(3) solutions have been examined. It was found that resins consisting of N,N-dimethylacrylamide (Silica-DMAA resins) showed higher selectivity to U(VI) than U(IV) in the concentration range of HNO(3) up to 9 mol/dm(3). On the other hand, a resin consisting of N-methyl-N-vinylbenzylacetamide (Silica-MVBAA) was found to show a higher selectivity to U(IV) under the same concentration range of HNO(3). Differences in the selectivity among the resins were explained by the difference in the conformation between the functional carbonyl groups of the monoamide resins and U species.
  • Reduction of U(VI) and some fission products in HNO3 media by galvanostatic electrolysis, M. Nogami, Y. Hirose, T. Arai, Y-Z. Wei, M. Kumagai, JOURNAL OF ALLOYS AND COMPOUNDS, JOURNAL OF ALLOYS AND COMPOUNDS, 451(1-2), 358 - 360, Feb. 2008 , Refereed
    Summary:In order to investigate the applicability of the galvanostatic reduction of uranium(VI) to U(IV) in the electrolytic reduction and ion exchange (ERIX) Process, a novel aqueous reprocessing technique for spent mixed uranium and plutonium oxide (MOX) fuels for fast-breeder reactors (FBR), an improved electrolytic cell was developed and fundamental electrolytic properties were examined using U and some fission products (FPs) in HNO3 media. As the result of the electrolysis for a 200 cm(3) solution of 0.5 M (M = mol/dm(3)) U(VI), 6 M HNO3, and 0.5 M N2H4, it was found that more than 99% of U(VI) was reduced to U(IV) before the shift to the side reaction when the initial constant current supplied was no higher than 10 A. It was also found that the reduction of U(VI) to U(IV) was achieved using the cell under coexistence with the FPs, e.g. noble metals, which are easily deposited by the electrolytic reduction. (C) 2007 Elsevier B.V. All rights reserved.
  • Effect of chemical structure of monoamide resins on adsorptivity to uranium(VI) in nitric acid media, Masanobu Nogami, Taito Ishihara, Koichi Maruyama, Yasuhisa Ikeda, PROGRESS IN NUCLEAR ENERGY, PROGRESS IN NUCLEAR ENERGY, 50(2-6), 462 - 465, 2008 , Refereed
    Summary:For the development of resins with selectivity for uranium(VI) in nitric acid media, some silica-supported monoamide resins with different chemical structures have been newly synthesized and the adsorptivities to U(VI) in HNO3 have been examined based on our previous results that the chemical structure of monoamide resins might largely affect their adsorptivities to U(VI). The resin consisting of N-vinyl-2-pyrrolidone was found to show relatively strong adsorptivity to U(VI) in the wide concentration range of HNO3 and little dependence on them. On the other hand, the adsorptivity to U(VI) of the resin with methylacetamide showed dependence on HNO3 concentrations such as dimethylacrylamide (DMAA) resins which were previously studied, whereas the affinity to U(VI) was smaller than those of DMAA resins. According to the probable adsorption mechanism of U(VI) onto monoamide resins that two oxygen atoms of the two amide groups coordinate to U(VI), the adsorption data suggest that the adsorptivity of monoamide resins is strongly affected by the 'chelating effect', namely there are some optimum numbers of the atoms participating in the chelating formation. (C) 2007 Elsevier Ltd. All rights reserved.
  • Syntheses and adsorption behavior of monoamide resins with porous silica support for selective recovery of uranium(VI) from nitric acid media, M. Nogami, T. Ishihara, K. Suzuki, Y. Ikeda, JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 273(1), 37 - 41, Jul. 2007 , Refereed
    Summary:Resins with monoamides as functional groups have been synthesized and their fundamental adsorption behaviors have been examined for selective recovery of uranium(VI) from nitric acid media. The resins synthesized with porous silica support showed greatly different adsorptions for U(VI) depending on the chemical structures of the functional group. Some resins show little or no adsorption for U(VI) from 0.1 to 6 mol/dm(3) HNO3. While, resins consisting of dimethylacrylamide (DMAA) showed an increasing adsorption with an increasing concentration of HNO3 up to 9 to 12 mol/dm(3). Other ions were not found to be adsorbed onto Silica-DMAA under similar solution conditions, which means that the resin is selective for U(VI) in HNO3 media.
  • A structural study on uranyl (VI) nitrate complexes with cyclic amides: N-n-butyl-2pyrrolidone, N-cyclohexylmethyl-2-pyrrolidone, and 1,3-dimethyl-2-imidazolidone, N Koshino, M Harada, M Nogami, Y Morita, T Kikuchi, Y Ikeda, INORGANICA CHIMICA ACTA, INORGANICA CHIMICA ACTA, 358(6), 1857 - 1864, Mar. 2005 , Refereed
    Summary:Structural analyses Of UO2(NO3)(2)L-2 [L = N-n-butyl-2-pyrrolidone (NBP), N-cyclohexylmethyl-2-pyrrolidone (NCMeP), and 1,3dimethyl-2-imidazolidone (DMI)] have been carried out using X-ray diffraction method. These uranyl complexes were found to have a hexagonal bipyramidal structure. The bond distances (angstrom) of U=O and U-O(ligand), and bond angles (degrees) of U-O-C(carbonyl) are determined as follows: 1.774(2), 2.374(2), and 137.6(2) for UO2(NO3)(2)(NBP)(2); 1.770(l), 2.383(2), and 135.3(l) for UO2(NO3)(2)(NCMeP)(2); 1.771(2), 2.361(2), and 143.3(2) for UO2(NO3)(2)(DMI)(2)- In uranyl nitrate complexes with cyclic amides such as 2-pyrrolidone, urea, and caprolactam derivatives, a linear correlation was found to hold between U-O(ligand) bond distances and U O-C(carbonyl) bond angles. Vibrational frequencies Of UO2(NO3)(2)L-2 have also been measured by IR and Raman spectrophotometers. Using relationships between vibrational frequencies of O=U=O bonds and donor numbers (DNs) of ligands, it was found that donicities of N-substituted2-pyrrolidones (Me, Et, Bu, cyclohexyl, and cyclohexylmethyl) are in the range of 26-29, and the DN of 1,3-dimethyl-2-imidazolidone was estimated as 27.8. (c) 2005 Elsevier B.V. All rights reserved.
  • A study on pyrrolidone derivatives as selective precipitant for uranyl ion in HNO3, Y Ikeda, E Wada, M Harada, T Chikazawa, T Kikuchi, H Mineo, Y Morita, M Nogami, K Suzuki, JOURNAL OF ALLOYS AND COMPOUNDS, JOURNAL OF ALLOYS AND COMPOUNDS, 374(1-2), 420 - 425, Jul. 2004 , Refereed
    Summary:We have found out that N-cyclohexyl-2-pyrrolidone (NCP) can selectively precipitate UO22+ ions in HNO3 solutions. In order to investigate factors of such a specific property of NCP, we have examined reactions of NCP with UO22+ ions in HCl, HClO4, or H2SO4, and the precipitation abilities of pyrrolidone derivatives other than NCP for UO22+ in HNO3 solutions. As a result, it was found that UO22+ ions in HCl, HClO4, or H2SO4 are not precipitated by NCP, that N-methyl-2-pyrrolidone (NMP) and N-ethyl-2-pyrrolidone (NEP) with lower hydrophobicity than NCP do not precipitate UO22+, and that hydrophobic N-dodecyl-2-pyrrolidone can precipitate UO22+. Furthermore, we have investigated the crystal structures of UO2(NO3)(2)(L)(2) (L = NMP, NEP) complexes to compare with that of UO2(NO3)(2)(NCP)(2). The bond distance between uranium and carbonyl oxygen of NCP in UO2(NO3)(2)(NCP)(2) was found to be shorter than those in UO2(NO3)(2)(L)(2) (L = NMP, NEP). From these results, it is proposed that the specific property of NCP is ascribed to its relatively high hydrophobicity owing to cyclohexyl group, to its strong coordination ability to UO22+ for forming the symmetrical complex accompanied by two bidentate NO3-, and to the surface of UO2(NO3)(2)(NCP)(2) which is surrounded by the hydrophobic cyclohexyl groups of coordinated NCP. (C) 2003 Elsevier B.V. All rights reserved.
  • Separation performance for trivalent actinides from lanthanides by thiacalix[4]arenes compounds impregnated silica ion-exchanger, T Kikuchi, M Nogami, K Suzuki, JOURNAL OF ALLOYS AND COMPOUNDS, JOURNAL OF ALLOYS AND COMPOUNDS, 374(1-2), 272 - 276, Jul. 2004 , Refereed
    Summary:Silica ion-exchangers impregnated new thiacalix[4]arenes compounds were prepared and investigated the adsorbed performance for Am and lanthanides. The maximum distribution coefficient of Am over the exchanger was 5000cm(3)/g in weak-acid solution. In contrast, the distribution coefficient of Nd or Eu was below 10 cm(3)/g. It was shown that thiacalix[4]arenes compounds have the selective adsorption for Am. The influence of the gamma ray irradiation to the selective adsorption was also investigated. (C) 2003 Elsevier B.V. All rights reserved.
  • Adsorption behavior of amidoxime resin for separating actinide elements from aqueous carbonate solutions, M Nogami, SY Kim, N Asanuma, Y Ikeda, JOURNAL OF ALLOYS AND COMPOUNDS, JOURNAL OF ALLOYS AND COMPOUNDS, 374(1-2), 269 - 271, Jul. 2004 , Refereed
    Summary:Adsorption behaviors of actinide elements and major fission products (FP) in weakly-basic aqueous carbonate solutions to the amidoxime resin have been examined to separate U and Pu from FP under these solution conditions. Batch experiments have revealed that Pu(IV) and Pu(VI) have been adsorbed to the resin as well as U(VI) from 0.5 mol/dm(3) Na2CO3-NaHCO3 solutions at pH 9 containing nitrate, and that the selectivity to the resin is Pu(IV) > Pu(VI) and U(VI) > Pu(VI), respectively. A column experiment using a similar carbonate solution containing U(VI), Ru(III), Pd(II), Zr(IV), Mo(VI), and Re(VII) has clarified that only U(VI) is adsorbed to the resin, that the other FP are passed through the column, and that the adsorbed U(VI) is eluted with 0.5 mol/dm(3) HNO3. From these results, it is expected that the separation of U and Pu from FP can be carried out using weakly-basic aqueous carbonate solutions and amidoxime resin. (C) 2003 Elsevier B.V. All rights reserved.
  • Effect of pore diameter of TMMA chelating resin beads on the adsorption properties of U(VI) and Ce(III) from different media, IM Ismail, M Nogami, K Suzuki, SEPARATION AND PURIFICATION TECHNOLOGY, SEPARATION AND PURIFICATION TECHNOLOGY, 31(3), 231 - 239, Jun. 2003 , Refereed
    Summary:In order to investigate the relationship between the pore diameter and the rate of uptake of U(VI) ions and Ce(III) ions, N,N,N',N'-tetramethylmalonamide (TMMA) chelating resins with different pore diameters were synthesized, using different pore producing solvents. The batch technique was used to study the kinetics of the adsorption U(VI) and Ce(III) ions from 3 M HNO3, acid, and 3 M NaNO3+0.05 M HNO3, salt, media. The process was found to be controlled by the particle diffusion model. The calculated values for the diffusion coefficient were found to be directly proportional to the pore diameter, i.e. the resin with the largest pore diameter showed the fastest rate of uptake. (C) 2002 Elsevier Science B.V. All rights reserved.
  • Synthesis, characterization and some adsorption properties of TMMA chelating resin, M Nogami, IM Ismail, M Yamaguchi, K Suzuki, JOURNAL OF SOLID STATE CHEMISTRY, JOURNAL OF SOLID STATE CHEMISTRY, 171(1-2), 353 - 357, Feb. 2003 , Refereed
    Summary:In order to separate U(VI) ions and lanthanide ions from acidic media, N,N,N',N'-tetramethylmalonamide, (TMMA), chelating resin was synthesized by chemically bonding the functional group to the main chain of chloromethylstyrene-divinylbenzene copolymer. Characterization of the resin in terms of IR, solid-NMR, porosity and elemental analysis suggested that TMMA was uniformly linked to the polymer particles following the expected synthetic scheme and that the introduction ratio was ca. 75%. The uptake behavior of Ce(III) ions and of U(VI) ions from different acidic media were investigated using the batch technique. The kinetic and equilibrium studies showed that the obtained resin is promising for the proposed separation. (C) 2003 Elsevier Science (USA). All rights reserved.
  • The utilization of TMMA chelating resin for the adsorption of U(VI) and some lanthanide ions from acidic media, IM Ismail, M Nogami, K Suzuki, SOLVENT EXTRACTION AND ION EXCHANGE, SOLVENT EXTRACTION AND ION EXCHANGE, 21(3), 465 - 481, 2003 , Refereed
    Summary:N,N,N',N' -Tetramethylmalonamide (TMMA) chelating resin was used for the separation of U(VI) ions and some rare earth ions from acidic media. Effect of nitric acid concentration on the distribution coefficient, in the acid concentration range 0.05-6 M, is presented. The equilibrium isotherms of U(VI) ions, Ce(III), Eu(III), Nd(III), and Dy(III) were investigated. The utilization of the resin for the removal U(VI) ions and Ce(III) ions on laboratory-scale fixed-bed column was studied. The elution of the sorbed ions by 0.1 M HNO3 was found to be possible. The column-operation results proved that the resin is more promising compared with dihexyl-N,N-diethylcarbamoylmethyl-phosphonate (CMP) chelating resin.
  • Radiation resistance of pyridine type anion exchange resins for spent fuel treatment, M Nogami, Y Fujii, T Sugo, JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY-ARTICLES, JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY-ARTICLES, 203(1), 109 - 117, Feb. 1996 , Refereed
    Summary:The resistance against radiation of the tertiary pyridine resins synthesized for the treatment of spent nuclear fuels and high level radioactive waste was evaluated. After irradiation at 10 MGy, only approximately 10% or less of the exchange groups were lost in HCl solutions regardless of their concentrations, while 30 similar to 40% were lost in HNO3. The pyridine resin has shown remarkable resistance against radiation particularly in HCl solution. It has been revealed that the decomposition of pyridine type resins results from the scission of the principal chains. An irradiation study was conducted also on the quaternary ammonium resins. Quaternization ratio was found to be reduced in HNO3 solutions at 10 MGy irradiation.
  • Ion-exchange selectivity of tertiary pyridine-type anion-exchange resin for treatment of spent nuclear fuels, Masanobu Nogami, Masao Aida, Yasuhiko Fujii, Akira Maekawa, Shinobu Ohe, Hiroomi Kawai, Morihiro Yoneda, Nuclear Technology, Nuclear Technology, 115(3), 293 - 297, 1996 , Refereed
    Summary:The tertiary pyridine-type anion-exchange resin has been synthesized for the treatment of spent nuclear fuels and high-level radioactive waste. This resin, with a uniform diameter of 60 μm, is mechanically strong enough and shows no swelling or shrinking regardless of its chemical forms. Systematic analysis was made of the adsorption selectivities of the resin in HCl solutions for a number of cations that exist in spent fuels, such as uranium and fission product elements. The results indicate that the resin is suitable to be used for the treatment of spent fuels and high-level radioactive waste.

Books etc

  • Uranium: Compounds, Isotopes and Applications, M. Nogami, Joint author, Chap.2 : Recent Advances in Separation Techniques of Uranium from Other Metal Ions, Nova Science Publishers,   2009 11 , 9781606925737
  • Recent Advances in Actinide Science, M. Nogami, I. Goto, N. Asanuma, Y. Ikeda, K. Suzuki, Joint author, Adsorption Properties of Amidoxime Resins for Uranium(VI) and Some Fission Products Soluble in Aqueous Carbonate Solutions, The Royal Society of Chemistry,   2006 10 , 085404678X
  • Ion Exchange Developments and Applications, M. Nogami, M. Aida, K. Takahashi, Y. Fujii, A. Maekawa, S. Ohe, H. Kawai, M. Yoneda, Joint author, Ion Exchange for Nitride Fuel Cycle, The Royal Society of Chemistry,   1996 12 , 0854047263