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Development of hollow photocatalytic particle assemblies for continuous hydrogen production

Research Project

Project/Area Number 17K19020
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Research Field Nano/Micro science and related fields
Research InstitutionTohoku University

Principal Investigator

Nagao Daisuke  東北大学, 工学研究科, 教授 (50374963)

Project Period (FY) 2017-06-30 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2018: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2017: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Keywordsナノ材料 / 粒子集積 / 光触媒 / 集積体 / 水素製造
Outline of Final Research Achievements

A fabrication process in which spherical titania particles with a photocatalytic surface exposed were incorporated into hollow interiors of inverse opals (IO) was examined. The incorporation of spherical titania particles into IO was performed by a combination of filling interstices of polymer-coated titania particles with silica precursors and sintering the assembly of polymer-coated titania particles. Decomposition of methylene blue (MB), which is a typical method to characterize photocatalytic activity instead of water splitting reaction, was used to examine the catalytic activity of IO fabricated in the present work. The MB decomposition revealed that the spherical titania particles incorporated into the hollow interior of IO could exhibit a photocatalytic activity under UV irradiation with an assistance of connection holes formed between hollow interiors.

Academic Significance and Societal Importance of the Research Achievements

槽型反応器(バッチ式)は反応溶液の交換が必要であり連続運転には不適であるが、管型反応器は連続運転に適する。本研究で開発したインバースオパール(IO)体は、光触媒粒子が露出された状態でIO内の空隙に内包され、かつ隣接する光触媒粒子が連結孔を介して接続されているという特徴を有しており、今回のIO体の作製は、連続運転可能な管型光触媒反応器の発展に寄与する基盤研究と位置づけることができる。

Report

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

    (8 results)

All 2019 2018 2017 Other

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (5 results) (of which Int'l Joint Research: 1 results) Remarks (2 results)

  • [Journal Article] Uniform formation of mesoporous silica shell on micron-sized cores in the presence of hydrocarbon used as a swelling agent2018

    • Author(s)
      Haruyuki Ishii, Mitsunobu Nara, Yuri Hashimoto, Arata Kanno, Shunho Ishikawa, Daisuke Nagao, Mikio Konno
    • Journal Title

      Journal of Sol-Gel Science and Technology

      Volume: 85 Issue: 3 Pages: 539-545

    • DOI

      10.1007/s10971-018-4589-y

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] 光触媒粒子の液中分散性向上に関する検討2019

    • Author(s)
      波形光、大久保沙耶、渡部花奈子、石井治之、長尾大輔
    • Organizer
      マテリアル・ファブリケーション・デザインセミナー
    • Related Report
      2018 Annual Research Report
  • [Presentation] Photocatalytic activity of titania particles incorporated into hollow interiors formed by silica shell2018

    • Author(s)
      H. Namigata, H. Ishii, D. Nagao
    • Organizer
      13th Japan-Korea Symposium on Materials and Interfaces
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 中空構造を有する光触媒粒子集積体の作製2018

    • Author(s)
      大久保沙耶、石井治之、長尾大輔
    • Organizer
      化学系学協会東北大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] HPLC応用に向けたコアシェル型メソポーラスシリカミクロン粒子のシェル厚制御2018

    • Author(s)
      石川椿峰、橋本佑里、石井治之、長尾大輔
    • Organizer
      化学工学会第83年会
    • Related Report
      2017 Research-status Report
  • [Presentation] 光触媒内包型粒子集積体の活性に及ぼす光触媒空間分布の影響2017

    • Author(s)
      奈良光展、石井治之、長尾大輔
    • Organizer
      化学工学会第49回秋季大会
    • Related Report
      2017 Research-status Report
  • [Remarks] 東北大学大学院工学研究科 化学工学専攻 長尾研究室HP

    • URL

      https://www.che.tohoku.ac.jp/~mpe/

    • Related Report
      2018 Annual Research Report
  • [Remarks] 東北大学大学院工学研究科 化学工学専攻 長尾研究室HP

    • URL

      http://www.che.tohoku.ac.jp/~mpe/index.html

    • Related Report
      2017 Research-status Report

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Published: 2017-07-21   Modified: 2020-03-30  

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