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Development of novel photodunctional materials through hybridization of negatively charged colloidal clay particles and anionic dyes

Research Project

Project/Area Number 20K05667
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 36010:Inorganic compounds and inorganic materials chemistry-related
Research InstitutionKyushu Institute of Technology

Principal Investigator

Teruyuki Nakato  九州工業大学, 大学院工学研究院, 教授 (10237315)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2022: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2021: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords粘土 / コロイド / アニオン色素 / 吸収スペクトル / 発光スペクトル / キサンテン / アゾベンゼン / 吸着 / キサンテン色素 / ローズベンガル / ゾルゲル転移 / 色素 / 発光 / 粘土鉱物 / ゲル
Outline of Research at the Start

アニオン性表面をもつ粘土粒子とアニオン性色素とからなる、粘土―色素ハイブリッド発光材料を開発する。粘土と静電反発する色素との組み合わせに対し、ゲル状態の粘土コロイドへアニオン性発光色素を包埋させることで、新たな発光材料を開発する。赤、緑、青の発光色素と粘土とのハイブリッド化によって、RGBの発光を示す材料を得る。粘土のアニオン表面によってアニオン性分子の機能を制御する先例のない試みを行い、粘土―機能分子ハイブリッドの可能性を大きく拡張する。加えて、粘土ゲルが機能分子の固定化媒体となり得ることを示す。

Outline of Final Research Achievements

In colloids of negatively charged clay particles, anionic dyes showed spectroscopic properties and photochemical reactions different from those in homogeneous aqueous solutions. Spectroscopic behavior of anionic xanthene dyes in clay colloids were affected by the coexisting clay particles; spectral shapes and emission intensity depended on the clay concentration. The spectroscopic behavior also depended on the dye species and clay mineral species. Presence of certain attractive interactions between the dye molecules and the clay particles, both of which are negatively charged, was suggested. Influence of colloidal clay particles was also found for photoisomerization of an anionic.

Academic Significance and Societal Importance of the Research Achievements

本研究は、粘土コロイドが多様なアニオン性色素のさまざまな光過程に、普遍的に影響を及ぼすことを実験的に明らかにした。これまでの粘土-色素相互作用の研究では、粘土はアニオン性色素の物性に影響を与えないことが暗黙の了解であったが、本研究はこれを覆したものである。粘土-色素相互作用、あるいはより一般化して粘土-有機相互作用の描像を変革し、粘土-色素相互作用にもとづく新素材開発の戦略を根底から変え得る学術的意義を有する。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (16 results)

All 2022 2021 Other

All Int'l Joint Research (2 results) Journal Article (4 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 4 results,  Open Access: 1 results) Presentation (10 results) (of which Int'l Joint Research: 4 results,  Invited: 3 results)

  • [Int'l Joint Research] クイーンズランド大学(オーストラリア)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] ウィティヤシリメティー科学技術大学院大学(タイ)

    • Related Report
      2021 Research-status Report
  • [Journal Article] Impacts of negatively charged colloidal clay particles on photoisomerization of both anionic and cationic azobenzene molecules2022

    • Author(s)
      Emiko Mouri, Kei Kajiwara, Shuhei Kawasaki, Yusuke Shimizu, Hikaru Bando, Hideki Sakai, Teruyuki Nakato
    • Journal Title

      RSC Advances

      Volume: 12 Issue: 17 Pages: 10855-10861

    • DOI

      10.1039/d2ra01020h

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Negatively Charged Clay Particles Influence Spectroscopic Properties of Anionic Organic Dyes in Aqueous Colloids2022

    • Author(s)
      Teruyuki Nakato, Yoshiki Kawanami, Keisuke Taninaka, Emiko Mouri
    • Journal Title

      Bulletin of the Chemical Society of Japan

      Volume: 95 Issue: 10 Pages: 1486-1490

    • DOI

      10.1246/bcsj.20220229

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Electrically Induced Alignment of Semiconductor Nanosheets in Niobate-Clay Binary Nanosheet Colloids toward Significantly Enhanced Photocatalysis2021

    • Author(s)
      Teruyuki Nakato,* Wataru Ishitobi, Miho Yabuuchi, Masaya Miyagawa, Emiko Mouri, and Yusuke Yamauchi
    • Journal Title

      Langmuir

      Volume: 37 Issue: 25 Pages: 7789-7800

    • DOI

      10.1021/acs.langmuir.1c01051

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Cooperative Electric Alignment of Colloidal Graphene Oxide Particles with Liquid Crystalline Niobate Nanosheets2021

    • Author(s)
      Teruyuki Nakato,* Thipwipa Sirinakorn, Wataru Ishitobi, Emiko Mouri, and Makoto Ogawa
    • Journal Title

      Bulletin of the Chemical Society of Japan

      Volume: 94 Issue: 12 Pages: 2871-2879

    • DOI

      10.1246/bcsj.20210314

    • NAID

      130008144717

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] 粘土コロイド中でのアニオン色素の分光学的挙動2022

    • Author(s)
      中戸晃之,川浪祥希,谷中佳祐,毛利恵美子
    • Organizer
      第65回粘土科学討論会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 粘土ナノシート液晶の電場配向における色素吸着の影響2022

    • Author(s)
      渡部剛,新宅真仁,鈴木康孝,毛利恵美子,川俣純,中戸晃之
    • Organizer
      第65回粘土科学討論会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Effects of Dye Adsorption on Electric Alignment of Liquid Crystalline Clay Nanosheets2022

    • Author(s)
      T. Watanabe, M. Shintaku, Y. Suzuki, E. Mouri, J. Kawamata, T. Nakato
    • Organizer
      5th Int. Conf. on Nanospace Materials (ICNM 2022)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Photofunctions of Anionic Dyes in the Presence of Negatively Charged Colloidal Clay Particles2022

    • Author(s)
      T. Nakato
    • Organizer
      5th Int. Conf. on Nanospace Materials (ICNM 2022)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] ニオブ酸―粘土2成分系ナノシートコロイドの電場配向2022

    • Author(s)
      中戸晃之,石飛 渉,毛利恵美子
    • Organizer
      第60回セラミックス基礎科学討論会
    • Related Report
      2021 Research-status Report
  • [Presentation] ニオブ酸-粘土2成分系ナノシートコロイドの電場配向と光触媒応用2021

    • Author(s)
      中戸晃之,石飛 渉,毛利恵美子
    • Organizer
      第64回粘土科学討論会
    • Related Report
      2021 Research-status Report
  • [Presentation] ニオブ酸-粘土混合ナノシートコロイドの電場配向における周波数の影響2021

    • Author(s)
      渡部 剛,石飛 渉,毛利恵美子,中戸晃之
    • Organizer
      第64回粘土科学討論会
    • Related Report
      2021 Research-status Report
  • [Presentation] Photocatalytic decomposition controlled by liquid crystalline binary nanosheet colloids of niobate and clay in an electric field2021

    • Author(s)
      T. Nakato, W. Ishitobi, E. Mouri
    • Organizer
      Pacifichem 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] コロイドプロセスによる無機ナノシートのソフト集積と機能発現2021

    • Author(s)
      中戸晃之
    • Organizer
      日本セラミックス協会第54回基礎科学部会セミナー
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] Structural Coloration Developed by Oxide Nanosheet Colloids2021

    • Author(s)
      E. Mouri, C. Ogami, T. Fukumoto, T. Nakato
    • Organizer
      Pacifichem 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited

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Published: 2020-04-28   Modified: 2024-01-30  

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