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Development of novel organic composite adsorbents with gradation phenomenon of electron density and pseudo adsorption ability for simultaneous removal of chemical species in aqueous solutions

Research Project

Project/Area Number 16K18346
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Nuclear engineering
Research InstitutionNagaoka University of Technology

Principal Investigator

Tachibana Yu  長岡技術科学大学, 工学研究科, 助教 (40634928)

Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords有機複合吸着剤 / タンニン酸 / 陰イオン交換樹脂 / 同時分離 / 放射性核種 / オゾン / 吸着・脱離機構 / 河川水・海水 / 電子密度のグラデーション効果 / 疑似的吸着能 / 模擬放射性核種 / シビアアクシデント対応型高度浄水システム / イオン交換樹脂 / ベンゾクラウンエーテル樹脂 / 一括除染技術 / 疑似的吸着現象 / 電子密度のグラデーション現象 / 河川水 / 高度浄水処理技術 / 除染技術 / 高分子合成 / 高分子構造・物性 / 反応・分離工学 / 複合材料・物性 / 水資源
Outline of Final Research Achievements

Syntheses of novel tannic acid-type organic composite adsorbents with gradation phenomenon of electron density and pseudo adsorption ability for simultaneous removal of various types of radionuclides in aqueous solutions have been successfully performed and the adsorption behavior has also been examined to understand the novel adsorption mechanisms named gradation phenomenon of electron density and pseudo adsorption ability for radionuclides. The effect of gradation phenomenon of electron density can be recognized that the respective functional groups in the composite adsorbents have slightly different electron density by polymerization between typical anion-exchange resins and tannic acid. As a result, the composite adsorbents can have the simultaneous adsorption ability for radionuclides. Moreover, our result showed that the effect of pseudo adsorption ability means the adsorption mechanism through the formation of the electron-donor-acceptor complexes (EDA) or pseudo EDA complexes.

Academic Significance and Societal Importance of the Research Achievements

典型的な陰イオン交換樹脂とよく知られた天然有機化合物であるタンニン酸を最短距離で化学結合させることにより、個々の吸着特性では確認できなかった驚異的な吸着特性を発現させることに成功した。開発した吸着剤は多くの特定の元素に対して非常に高い吸着特性を持つことを発見した。また、擬似吸着能及び電子密度のグラデーション効果に関する新しい吸着特性を実験的に解明した。対象となった元素の中には、偶然にも原子力発電所の過酷事故によって飲料水用原水の汚染原因となりうる放射性核種も多く含まれていることから、従来の高度浄水処理方式に放射性核種の吸着除去設備を組み込んだ画期的な複合システムを考案した。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (16 results)

All 2019 2018 2017 2016 Other

All Int'l Joint Research (1 results) Journal Article (4 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 4 results,  Open Access: 2 results) Presentation (11 results) (of which Int'l Joint Research: 6 results)

  • [Int'l Joint Research] Indian Institute of Technology Madras(インド)

    • Related Report
      2018 Annual Research Report
  • [Journal Article] Chromatographic fractionation of lithium isotope in aqueous solution using bifunctional ion-exchange resin2019

    • Author(s)
      Yu Tachibana, Vijay Vidyadharan Nair, Sankaralingam Mohan, and Tatsuya Suzuki
    • Journal Title

      Separation Science and Technology

      Volume: 印刷中 Issue: 12 Pages: 2183-2192

    • DOI

      10.1080/01496395.2019.1607874

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Selective Lithium Recovery from Seawater Using Crown Ether Resins2018

    • Author(s)
      Yu Tachibana, Tatsuya Suzuki, Masanobu, Nogami, Masao Nomura, and Toshitaka Kaneshiki
    • Journal Title

      Journal of Ion Exchange

      Volume: 29 Issue: 3 Pages: 90-96

    • DOI

      10.5182/jaie.29.90

    • NAID

      130007485358

    • ISSN
      0915-860X, 1884-3360
    • Year and Date
      2018-09-20
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Syntheses of tannic acid-type organic composite adsorbents for simultaneous removal of various types of radionuclides in seawater2018

    • Author(s)
      Yu Tachibana, Tatsuya Suzuki, Masanobu, Nogami, Masao Nomura, and Toshitaka Kaneshiki
    • Journal Title

      Journal of Radioanalytical and Nuclear Chemistry

      Volume: 318 Issue: 1 Pages: 429-437

    • DOI

      10.1007/s10967-018-6168-7

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Lithium Isotope Fractionation in Weak Basic Solution Using Cation Exchange Chromatography2018

    • Author(s)
      Yu Tachibana, Andri Rahma Putra, Suki Hashimoto, Tatsuya Suzuki, and Masahiro Tanaka
    • Journal Title

      Journal of Ion Exchange

      Volume: 29

    • NAID

      130007485510

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Syntheses of tannic acid-type organic composite adsorbents for simultaneous removal of various types of radionuclides in seawater2018

    • Author(s)
      Yu Tachibana, Tatsuya Suzuki, Masanobu Nogami, Masao Nomura, and Toshitaka Kaneshiki
    • Organizer
      Eleventh International Conference on Methods and Applications of Radioanalytical Chemistry
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Lithium isotope fractionation in weak basic solution using cation exchange chromatography2018

    • Author(s)
      Yu Tachibana, Andri Rahma Putra, Suki Hashimoto, Tatsuya Suzuki and Masahiro Tanaka
    • Organizer
      Seventh International Conference on Ion Exchange 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Crown ether-type organic composite adsorbents for selective and simultaneous recovery of lithium and uranium in seawater2018

    • Author(s)
      Yu Tachibana, Tatsuya Suzuki, and Masahiro Tanaka
    • Organizer
      5th International Conference on Methods and Materials for Separation Processes, Separation Science - Theory and Practice 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Lithium isotope fractionation in aqueous solution using bifunctional exchange chromatography2018

    • Author(s)
      Yu Tachibana, Vijay Vidyadharan Nair, Sankaralingam Mohan, and Tatsuya Suzuki
    • Organizer
      5th International Conference on Methods and Materials for Separation Processes, Separation Science - Theory and Practice 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Selective lithium recovery from seawater using crown ether resins2018

    • Author(s)
      Yu Tachibana, Tatsuya Suzuki, Masanobu Nogami, Masao Nomura, and Toshitaka Kaneshiki
    • Organizer
      Seventh International Conference on Ion Exchange 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] タンニン酸型有機複合吸着剤を用いた多種多様な放射性核種の吸着脱離機構に関する基礎的研究2017

    • Author(s)
      立花 優, 奥村 森, 坂手 康弘, 野上 雅伸, 鈴木 達也, 野村 雅夫, 金敷 利隆
    • Organizer
      日本原子力学会 2017年春の年会
    • Place of Presentation
      東海大学 湘南キャンパス
    • Year and Date
      2017-03-27
    • Related Report
      2016 Research-status Report
  • [Presentation] Synthesis of tannic acid-type organic composite adsorbents toward advanced ozone water purification method for simultaneous removal of various types of radionuclides2017

    • Author(s)
      Yu Tachibana, Masanobu Nogami, Tsuyoshi Tai, Yasuhiro Sakate, Tatsuya Suzuki, Kohei Matsumoto, Shin Okumura, Masao Nomura, Toshitaka Kaneshiki
    • Organizer
      The 23rd IOA World Congress and Exhibition
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] タンニン酸型有機複合型有機複合吸着剤を用いた多種多様な放射性核種の吸着脱離機構に対する溶存オゾン効果2017

    • Author(s)
      立花優、橋本崇紀、奥村森、野上雅伸、鈴木達也、野村雅夫、金敷利隆
    • Organizer
      2017年日本放射化学年会・第61回放射化学討論会
    • Related Report
      2017 Research-status Report
  • [Presentation] リチウム同位体交換反応中における強酸性陽イオン交換樹脂の表面効果に関する研究2017

    • Author(s)
      立花優、橋本崇紀、鈴木達也、田中将裕
    • Organizer
      第16回同位体科学研究会
    • Related Report
      2017 Research-status Report
  • [Presentation] 有機複合吸着剤の混合比最適化と放射性同位元素に対する吸着脱離特性評価2016

    • Author(s)
      立花 優, 奥村 森, 野上 雅伸, 松本 康平, 坂手 康弘, 鈴木 達也, 野村 雅夫, 金敷 利隆
    • Organizer
      第32回日本イオン交換研究発表会
    • Place of Presentation
      関西大学 千里山キャンパス
    • Year and Date
      2016-10-27
    • Related Report
      2016 Research-status Report
  • [Presentation] 陸水に含まれる多種多様な放射性核種の一括除染を目指した有機複合吸着剤の合成と応用2016

    • Author(s)
      立花 優, 奥村 森, 野上 雅伸, 鈴木 達也, 野村 雅夫, 金敷 利隆
    • Organizer
      日本原子力学会 2016年秋の大会
    • Place of Presentation
      久留米シティープラザ
    • Year and Date
      2016-09-07
    • Related Report
      2016 Research-status Report

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Published: 2016-04-21   Modified: 2020-03-30  

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