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Thin film formation of two-dimensional carbon nitride structure based on precisely-designed precursors and its application toward photoactive membrane reactors

Research Project

Project/Area Number 19H02174
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 21050:Electric and electronic materials-related
Research InstitutionKeio University

Principal Investigator

NODA Kei  慶應義塾大学, 理工学部(矢上), 教授 (30372569)

Co-Investigator(Kenkyū-buntansha) 伊藤 彰浩  三重大学, 工学研究科, 教授 (90293901)
Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2022: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2021: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2020: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2019: ¥6,890,000 (Direct Cost: ¥5,300,000、Indirect Cost: ¥1,590,000)
Keywords二次元窒化炭素 / ナノ材料 / 光エネルギー変換 / エネルギー変換
Outline of Research at the Start

二次元窒化炭素の幾何学的な形状制御及び薄膜成長に適した前駆体分子を量子化学的な観点から新規に設計、合成し、それらを使用した気相成長による二次元窒化炭素構造体の薄膜形成を実施する。作製する試料の構造・物性評価を通じて、高効率な光吸収と電荷分離機構を有する窒化炭素薄膜の作製条件を探索し、分子構造及び薄膜構造の制御に関する指針を得る。本研究での成果を基に、貴金属助触媒フリーな人工光合成(太陽光水素生成や二酸化炭素光還元)の実現と光応答型膜反応器への応用を目指す。

Outline of Final Research Achievements

Our newly-synthesized C3N5, which is one of the nitrogen-abundant carbon nitrides, showed a hydrogen (H2) production amount larger than that of conventional graphitic carbon nitride (g-C3N4) in photocatalytic water splitting with triethanolamine under visible light irradiation. Besides nanocomposites of tungsten trioxide (WO3) nanorods and C3N5 brought about further improvement in photocatalytic H2 production, which can be attributed to a direct Z-scheme mechanism.
In addition, g-C3N4 was uniformly deposited on the surfaces of anodized TiO2 nanotube arrays by thermal chemical vapor deposition (CVD), leading to the enhancement of photocatalytic H2 production over TiO2 under ultraviolet-visible light irradiation. Thermal CVD enables conformal deposition of graphitic carbon nitrides on surfaces with large specific surface areas. Our results observed for TiO2/g-C3N4 composites indicate that thermal CVD is effective for constructing photoactive membrane reactors with carbon nitrides.

Academic Significance and Societal Importance of the Research Achievements

近年、ワイドギャップ半導体材料を用いた人工光合成(太陽光水素生成や二酸化炭素光還元)の研究開発が世界各地で活発に展開されている。本研究では、高分子半導体でもあり、炭素と窒素のみから成る金属フリーな窒化炭素材料を活用して、その薄膜形成技術や人工光合成反応に関する新しい知見を得るとともに、高機能光応答膜反応器の実現に向けた有益な成果を得ることができた。これらの成果は太陽エネルギーの有効利用やCO2削減等に寄与し得る、社会的に意義のあるものと言える。

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (18 results)

All 2023 2022 2021 2020 2019

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (16 results) (of which Int'l Joint Research: 3 results,  Invited: 3 results)

  • [Journal Article] Visible light responsive photocatalytic hydrogen production over composites of anodized TiO2 nanotube array and graphitic carbon nitride measured with a gas circulating reactor2021

    • Author(s)
      Masegi Hikaru、Doi Naoyuki、Yoneyama Sho、Noda Kei
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 60 Issue: 10 Pages: 105504-105504

    • DOI

      10.35848/1347-4065/ac23ef

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Bridge-length-dependent intramolecular charge transfer in bis(dianisylamino)-terminated oligo(p-phenylene)s2019

    • Author(s)
      Masashi Uebe, Kensuke Kaneda, Shinya Fukuzaki, Akihiro Ito
    • Journal Title

      Chemistry A European Journal

      Volume: 25 Issue: 68 Pages: 15455-15462

    • DOI

      10.1002/chem.201903667

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Presentation] Structural Analysis and Photocatalytic Hydrogen Production of C3N52023

    • Author(s)
      Kosei Ito, Kei Noda
    • Organizer
      The 19th Korea-Japan Symposium on Catalysis (KJSC)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ピレン骨格を含むテトラアザシクロファンの合成と電子的性質2023

    • Author(s)
      舩戸友菜、笛野博之、小塩明、伊藤彰浩
    • Organizer
      日本化学会第103春季年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] C3N5の構造解析と光触媒水素生成の評価2023

    • Author(s)
      伊藤皇聖、野田 啓
    • Organizer
      第70回応用物理学会春季学術講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Z-スキーム型可視光応答光触媒C3N5/WO3の水素生成量向上2023

    • Author(s)
      藤岡秀太、伊藤皇聖、内田涼太、野田 啓
    • Organizer
      第70回応用物理学会春季学術講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 窒素リッチな高分子状窒化炭素薄膜における光照射下での表面電位像観察2023

    • Author(s)
      西尾翔太、飯田悠介、小林 圭、野田 啓
    • Organizer
      第70回応用物理学会春季学術講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Gas Phase Photocatalytic CO2 Reduction and H2 Production over Anodized Nanotube Arrays2022

    • Author(s)
      Kei Noda
    • Organizer
      International Conference on Materials Science and Engineering 2022 (Materials Oceania 2022)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 熱化学気相成長で合成した二次元窒化炭素膜の可視光応答光触媒活性2022

    • Author(s)
      五藤隼登、一方井 遼佑、野田 啓
    • Organizer
      第83回応用物理学会秋季学術講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 管状炉熱CVDで作製した酸化チタンナノチューブアレイ/窒化炭素複合体の光触媒活性評価2022

    • Author(s)
      米山 翔、伊藤 皇聖、柵木 光、野田 啓
    • Organizer
      第83回応用物理学会秋季学術講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 管状炉を用いた熱 CVD 法による酸化チタンナノチューブアレイ/窒化炭素複合体の構造制御2022

    • Author(s)
      米山翔、柵木光、野田 啓
    • Organizer
      第69回応用物理学会春季学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 窒素リッチなグラファイト状窒化炭素の作製とその評価2022

    • Author(s)
      伊藤皇聖、野田啓
    • Organizer
      第69回応用物理学会春季学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Gas phase photocatalytic hydrogen production over vertically aligned nanotubular arrays prepared with electrochemical anodization2021

    • Author(s)
      Kei Noda
    • Organizer
      Symposium H-3 (Innovative Process and Materials Design via a Comprehensive Multiscale or Nano/Micro/Macro-Scale Fabrication Approach), Materials Research Meeting 2021 (MRM 2021)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 可視光触媒活性向上に向けた二酸化チタンナノチューブアレイ/窒化炭素複合体の形成2021

    • Author(s)
      柵木光、土井直之、野田啓
    • Organizer
      第82回応用物理学会秋季学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 二次元窒化炭素の可視光応答光触媒機能とその応用2021

    • Author(s)
      野田啓
    • Organizer
      シンポジウム「カーボンニュートラルに向けて有機分子・バイオエレクトロニクスができること」、第82回応用物理学会秋季学術講演会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 熱化学気相成長による二次元窒化炭素薄膜の作製と可視光応答性評価2021

    • Author(s)
      渡邊祐太、檀上悠斗、野田啓
    • Organizer
      第68回応用物理学会春季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 強酸処理したグラファイト状窒化炭素試料における構造評価2020

    • Author(s)
      岡本大矢、野田啓
    • Organizer
      第81回応用物理学会秋季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] グラファイト状窒化炭素から成る二次元ナノシートの化学的剥離2020

    • Author(s)
      岡本大矢、野田啓
    • Organizer
      第67回応用物理学会春季学術講演会
    • Related Report
      2019 Annual Research Report

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Published: 2019-04-18   Modified: 2024-01-30  

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