Stability of ferroelectric ice and a decontamination agent in water

• Project/Area Number: 24510130
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Quantum beam science
• Research Institution: Japan Atomic Energy Agency
• Principal Investigator: FUKAZAWA Hiroshi 国立研究開発法人日本原子力研究開発機構, 原子力科学研究部門 量子ビーム応用研究センター, 研究主幹 (30370464)
• Project Period (FY): 2012-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000); Fiscal Year 2014: ¥260,000 (Direct Cost: ¥200,000、Indirect Cost: ¥60,000); Fiscal Year 2013: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2012: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
• Keywords: 中性子 / 水 / 除染 / 国際研究者交流 / 米国オークリッジ国立研究所 / 韓国原子力研究所

Outline of Final Research Achievements

Ferrocyanide, such as prussian blue (Fe4[Fe(CN)6]3), captures radioactive cesium, but it does not work as a decontamination agent in water because it does not dissolve. We developed a new ferrocyanide hydrogel-complex (called ferrocyanide-complex, FC). The FC is stably dissolved in water because it contains a water-soluble polymer. When the polymer in FC is distributed, 31% of cesium is captured. On the other hand, 81% of cesium is captured in just 1 hour when the FC becomes a nanoscale sphere. The FC has been tested as a cesium capturing material and is important in the Fukushima recovery effort.

Research Products

• [Int'l Joint Research] オークリッジ国立研究所(米国)
• [Journal Article] Temperature and composition phase diagram in the iron-based ladder compounds Ba1-xCsxFe2Se3 (2015)
  • Author(s): . Hawai, Y. Nambu, K. Ohgushi, F. Du, Y. Hirata, M. Avdeev, Y. Uwatoko, Y. Sekine, H. Fukazawa, J. Ma, S. Chi, Y. Ueda, H. Yoshizawa and T. Sato
  • Journal Title: Phy. Rev. B Volume: 91 Pages: 184416-184420
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Neutron diffraction of ice and water in hydrogels (2015)
  • Author(s): Y. Sekine, R. Kobayashi, S. Chi, J. A. Fernandez-Baca, K. Suzuya, F. Fujisaki, K. Ikeda, T. Otomo, T. Ikeda-Fukazawa, H. Yamauchi and H. Fukazawa
  • Journal Title: JPS Conf. Proc. Volume: 8 Pages: 033009-033015
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Properties of ferroelectric ice (2015)
  • Author(s): H. Fukazawa, M. Arakawa, H. Yamauchi, Y. Sekine, R. Kobayashi, Y. Uwatoko, S. Chi and J. A. Fernandez-Baca
  • Journal Title: JPS Conf. Proc. Volume: 8 Pages: 033010-033015
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Properties of ferroelectric ice (2015)
  • Author(s): Hiroshi Fukazawa, Masashi Arakawa, Hiroki Yamauchi, Yurina Sekine, Riki Kobayashi, Yoshiya Uwatoko, Songxue Chi, Jaime A. Fernandez-Baca
  • Journal Title: Journal of Physical Society Japan Volume: -
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Neutron diffraction of ice and water in hydrogels (2015)
  • Author(s): Yurina Sekine, Riki Kobayashi, Songxue Chi, Jaime A. Fernandez-Baca, Kantaro Suzuya, Fukima Fujisaki, Kazutaka Ikeda, Toshiya Otomo, Tokomo Ikeda-Fukazawa, Hiroki Yamauchi, Hiroshi Fukazawa
  • Journal Title: Journal of Physical Society Japan Volume: -
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Dependence of structure of polymer side chain on water structure in hydrogels (2014)
  • Author(s): Yurina Sekine, Hajime Takagi, Sayoko Sudo, Yutaro Kajiwara, Hiroshi Fukazawa, Tokomo Ikeda-Fukazawa
  • Journal Title: Polymer Volume: 55 Pages: 6320-5324
  • Peer Reviewed
• [Journal Article] Neutron diffraction of ice in hydrogels (2014)
  • Author(s): Yurina Sekine, Tomoko Ikeda-Fukazawa, Mitsugu Aizawa, Riki Kobayashi, Songxue Chi, Jaime A. Fernandez-Baca, Hiroki Yamauchi, Hiroshi Fukazawa
  • Journal Title: Journal of Physical Chemistry B Volume: 118 Pages: 13453-13457
• [Journal Article] Block magnetism coupled with local distortion in the iron-based spin-ladder compound BaFe2Se3 (2012)
  • Author(s): Y. Nambu
  • Journal Title: Phys. Rev. Volume: B85 Issue: 6 Pages: 64413-64413
  • DOI: 10.1103/physrevb.85.064413
  • Peer Reviewed
• [Presentation] Neutron Diffraction Study of Gels (2014)
  • Author(s): Hiroshi Fukazawa
  • Organizer: Neutron Material Science Seminar, Oak Ridge National Laboratory
  • Place of Presentation: 米国オークリッジ市（米国オークリッジ国立研究所）
  • Invited
• [Presentation] 中性子回折実験で見出されたハイドロゲル中の異常な水 (2013)
  • Author(s): 深澤裕 関根由莉奈
  • Organizer: 日本中性子科学会
  • Place of Presentation: 柏市（千葉県民プラザ）
• [Presentation] 大強度中性子ビームを用いた宇宙氷の構造と物性に関する研究 (2013)
  • Author(s): 深澤裕
  • Organizer: 北海道大学低温科学研究所共同利用研究集会
  • Place of Presentation: 札幌市（北海道大学低温科学研究所）
  • Invited
• [Presentation] Properties of Hydrogen-ordered Ices under Pressure (2012)
  • Author(s): Hiroshi Fukazawa
  • Organizer: IUCr Commission on High Pressure 2012 Meeting “Advances in Crystallography at High Pressures”
  • Place of Presentation: ホテルレイクビュー水戸（水戸市）
• [Presentation] 氷と水の多形 (2012)
  • Author(s): 深澤裕, 関根由莉奈, 星川晃範, 石垣徹
  • Organizer: J-PARC/MLFシンポジウム・茨城県ビームライン成果報告会
  • Place of Presentation: 日本科学未来館（東京都）
  • Invited
• [Patent(Industrial Property Rights)] フェロシアン化物粒子-多糖類複合体 (2014)
  • Inventor(s): 深澤裕
  • Industrial Property Rights Holder: 深澤裕
  • Industrial Property Rights Type: 特許
  • Filing Date: 2014-04-01
• [Patent(Industrial Property Rights)] フェロシアン化物粒子ー多糖類複合体 (2014)
  • Inventor(s): 深澤裕 関根由莉奈
  • Industrial Property Rights Holder: 深澤裕 関根由莉奈
  • Industrial Property Rights Type: 特許
  • Filing Date: 2014-01-30