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Development of dispersive dye-sensitized composite nanosheets using dye materials with exfoliation ability and application of photocatalyst

Research Project

Project/Area Number 21K04692
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 26040:Structural materials and functional materials-related
Research InstitutionKyushu University

Principal Investigator

Watanabe Motonori  九州大学, カーボンニュートラル・エネルギー国際研究所, 准教授 (60700276)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2023: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords有機無機ハイブリッド / ナノシート / 剥離剤 / 光触媒 / 水分解 / 水素製造 / 色素増感 / 可視光 / 水素生産 / 可視光応答 / ハイブリッド
Outline of Research at the Start

ナノシートの剥離には剥離剤を用いるが、分散形態では剥離剤がナノシートに吸着した形となる。従って、色素増感能を有する剥離剤でナノシートを分散できれば、分散型色素担持ナノシートの開発が達成できる。本研究は剥離剤に色素増感能を持たせた新規剥離剤の開発と、それら材料を用いた層状化合物からの色素担持型ナノシートの合成を実現し、色素担持型ナノシートを用いた光触媒反応への展開を行う。

Outline of Final Research Achievements

Nanosheets and dye-supported nanosheets were used in a photohydrolysis reaction under full light irradiation in the presence of a sacrificial agent. Hydrogen production was confirmed, but the dye-supported nanosheets were observed to have a much lower hydrogen production efficiency. After the reaction, the blue dye-loaded nanosheets were observed to turn white, indicating that the dye had decomposed. A peak representing the dye stripper was observed after the photochemical reaction, indicating that the degradation reaction proceeded due to light irradiation. In summary, in this study, we succeeded in dispersing nanosheets with a dye-sensitizing exfoliant, and we have expanded to photocatalytic reactions using dye-loaded nanosheets. In the future, it is expected that more stable dyes will be used to develop highly stable and active dye-sensitized photocatalysts using nanosheets.

Academic Significance and Societal Importance of the Research Achievements

分散・剥離部位を有する従来の有機材料に色素増感部位を組み合わせ、色素増感能を有する分散されたナノシート光触媒を開発する研究はこれまでに報告がない。本系で開発する色素は剥離部位(カチオン部位または水酸基部位)・分散部位(アルキル基)を持たせるため、無機層状化合物を剥離後、ナノシートを溶液中に分散可能である。無機層状化合物光触媒系に幅広く適用できるので、学術的意義は極めて大きい。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (11 results)

All 2024 2023 2022

All Journal Article (5 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 3 results) Presentation (6 results) (of which Int'l Joint Research: 4 results,  Invited: 4 results)

  • [Journal Article] Enhanced charge mediator properties of photocatalysts with reduced graphene nanoribbons for photocatalytic acceleration of hydrogen production in aqueous media2024

    • Author(s)
      Morita Ryono、Murakami Yasushi、Shen Xiao-Feng、Yang Dengyao、Watanabe Motonori、Song Jun Tae、Takagaki Atsushi、Ishihara Tatsumi
    • Journal Title

      Journal of Materials Chemistry C

      Volume: 12 Issue: 5 Pages: 1652-1660

    • DOI

      10.1039/d3tc03622g

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Visible light driven hydrogen peroxide production by oxygen and phosphorus co-doped CoP-C3N4 photocatalyst2024

    • Author(s)
      Jinguji Kaito、Watanabe Motonori、Morita Ryono、Takaoka Yuta、Hossain Md. Sharif、Song Jun Tae、Takagaki Atsushi、Matsuda Junko、Ishihara Tatsumi
    • Journal Title

      Catalysis Today

      Volume: 426 Pages: 114400-114400

    • DOI

      10.1016/j.cattod.2023.114400

    • Related Report
      2023 Annual Research Report
  • [Journal Article] The acceleration of BODIPY dye-sensitized photocatalytic hydrogen production in aqueous ascorbic acid solutions using alkyl-chain formed second coordination sphere effects2023

    • Author(s)
      Shen Xiao-Feng、Watanabe Motonori、Song Jun Tae、Takagaki Atsushi、Abe Tatsuki、Tanaka Keiji、Ishihara Tatsumi
    • Journal Title

      Journal of Materials Chemistry A

      Volume: 11 Issue: 39 Pages: 21153-21160

    • DOI

      10.1039/d3ta03682k

    • Related Report
      2023 Annual Research Report
  • [Journal Article] Pyridyl anchoring squaraine as a near-infrared dye sensitizer for effective sensitized hydrogen production over a titanium dioxide photocatalyst in water medium2023

    • Author(s)
      Xiao Feng Shen, Motonori Watanabe, Atsushi Takagaki, Jun Tae Song, Tatsuki Abe, Daisuke Kawaguchi, Keiji Tanaka, Tatsumi Ishihara
    • Journal Title

      Applied Physics A: Materials Science and Processing

      Volume: 129 Issue: 1 Pages: 28-28

    • DOI

      10.1007/s00339-022-06281-7

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] [2.2]- and [3.3]Paracyclophane as Bridging Units in Organic Dyads for Visible-Light-Driven Dye-Sensitized Hydrogen Production2022

    • Author(s)
      Motonori Watanabe, Yuka Ono, Tatsumi Ishihara, Yuan Jay Chang, Masahiko Shibahara
    • Journal Title

      Chemistry - A European Journal

      Volume: 28 Issue: 43

    • DOI

      10.1002/chem.202200790

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Design of effective charge separation in dye-sensitized photocatalyst2023

    • Author(s)
      Motonori Watanabe
    • Organizer
      The Sino-Japan Symposium on Environmental Catalysis (SSEC) 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Study of stable visible-near infrared sensitized photocatalyst using BODIPY dye2023

    • Author(s)
      Motonori Watanabe
    • Organizer
      The 13th Taiwan-Japan Bilateral Symposium on Architecture of Functional Organic Molecules
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Design of organic-inorganic composite photocatalyst for visible light driven water splitting hydrogen production2023

    • Author(s)
      Motonori Watanabe
    • Organizer
      Ming Chi University of Technology seminar
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] D-p-A Type BODIPY Sensitized Photocatalyst for H2 Production under NIR Light2022

    • Author(s)
      Xiao-Feng Shen・Motonori Watanabe・Atsushi Takagaki・Jun Tae Song・Tatsumi Ishihara
    • Organizer
      第32回基礎有機化学討論会
    • Related Report
      2022 Research-status Report
  • [Presentation] BODIPY-containing D- π-A type sensitized TiO2 photocatalyst for H2 production under NIR light2022

    • Author(s)
      Motonori Watanabe
    • Organizer
      25th IUPAC International Conference on Physical Organic chemistry
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] [2.2]- and [3.3]Paracyclophane as Bridging Units in Organic Dyads for Visible-Light-Driven Dye-Sensitized Hydrogen Production2022

    • Author(s)
      Motonori Watanabe, Yuka Ono, Tatsumi Ishihara, Yuan Jay Chang, Masahiko Shibahara
    • Organizer
      25th IUPAC International Conference on Physical Organic chemistry
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research

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Published: 2021-04-28   Modified: 2025-01-30  

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