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Design of semiconductor photocatalysts and photocatalyst systems for highly efficient artificial photosynthesis

Research Project

Project/Area Number 19H02819
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 36020:Energy-related chemistry
Research InstitutionMeiji University

Principal Investigator

Iwase Akihide  明治大学, 理工学部, 専任准教授 (40632451)

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: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2021: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2020: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2019: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Keywords人工光合成 / 水分解 / 光触媒 / 表面修飾 / 表面処理 / 太陽光 / 複合体 / 水素製造 / 可視光 / バンド設計 / 助触媒 / 光エネルギー変換 / 表面反応場
Outline of Research at the Start

光触媒を用いた水分解や二酸化炭素の還元は,光エネルギーを化学エネルギーとして蓄積する人工光合成型の反応でることから,学術的・社会的に意義のある研究テーマである。本研究領域の課題は,「いかに高効率な人工光合成を達成するか」であるが,そのためには光触媒の根本的な高性能化や選択性制御の手法の確立が必要不可欠である。そこで,本研究では,光触媒内での電子移動および表面での光触媒反応を能動的にコントロールするための光触媒のバンド設計および新規反応場の設計を軸とし,申請者らが独自に開発したZスキーム系を基盤とした,高効率な水分解および二酸化炭素還元のための新規Zスキーム型光触媒を設計する。

Outline of Final Research Achievements

In the present research, we have successfully improved the water splitting activities under visible light irradiation on the basis of the development of photocatalyst materials and the formation of surface reaction sites. In terms of the development of photocatalyst materials, novel doped metal oxides with visible light response were developed. The developed photocatalysts showed activities for overall water splitting with one-step photo excitation which is more difficult than Z-schematic water splitting. In terms of the formation of surface reaction sites, the H2-ecolution ability of metal sulfides was improved by treatment with aqueous solutions and the water splitting ability of metal oxides was improved by treatment with fluxes. Thus, we have developed photocatalysts and strategy for improvement of water splitting activities.

Academic Significance and Societal Importance of the Research Achievements

光触媒を用いた水分解や二酸化炭素還元は,光エネルギーを化学エネルギーへと変換する反応であることから人工光合成と呼ばれ,持続可能社会およびカーボンニュートラルの実現に貢献しうる科学技術である。本研究課題の成果は,このような人工光合成型の反応を高効率に進めることのできる新しい光触媒の開発について,材料設計および高性能化の手法の確立に貢献するものである。特に,本課題で開発した表面処理による高性能化は,様々な光触媒や光触媒反応に適用できる可能性があり,本研究分野の発展に寄与すると考えられる。

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

    (40 results)

All 2023 2022 2021 2020 2019

All Journal Article (8 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 8 results,  Open Access: 1 results) Presentation (31 results) (of which Int'l Joint Research: 7 results,  Invited: 3 results) Book (1 results)

  • [Journal Article] Overall Water Splitting Under Visible Light Irradiation Over Ir and A‐Codoped KTaO <sub>3</sub> (A=Ca, Sr, Ba, La) Photocatalysts2022

    • Author(s)
      Iwase Akihide、Misono Haruka
    • Journal Title

      Energy Technology

      Volume: 11 Issue: 1 Pages: 2200739-2200739

    • DOI

      10.1002/ente.202200739

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The development of an Ir and Sr-codoped KNbO<sub>3</sub> photocatalyst as an O<sub>2</sub>-evolving photocatalyst for Z-schematic water splitting under visible light irradiation2022

    • Author(s)
      Iwase Akihide、Sakamoto Rikako、Misono Haruka
    • Journal Title

      Chemical Communications

      Volume: 58 Issue: 93 Pages: 12951-12954

    • DOI

      10.1039/d2cc04977e

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] CO<sub>2</sub> Reduction Using Water as an Electron Donor over Heterogeneous Photocatalysts Aiming at Artificial Photosynthesis2022

    • Author(s)
      Yoshino Shunya、Takayama Tomoaki、Yamaguchi Yuichi、Iwase Akihide、Kudo Akihiko
    • Journal Title

      Accounts of Chemical Research

      Volume: 55 Issue: 7 Pages: 966-977

    • DOI

      10.1021/acs.accounts.1c00676

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Photocatalytic CO2 Reduction Using Water as an Electron Donor under Visible Light Irradiation by ZScheme and Photoelectrochemical Systems over (CuGa)0.5ZnS2 in the Presence of Basic Additives2022

    • Author(s)
      Shunya Yoshino, Akihide Iwase, Yuichi Yamaguchi, Tomiko M. Suzuki, Takeshi Morikawa, Akihiko Kudo
    • Journal Title

      J. Am. Chem. Soc.

      Volume: 144 Pages: 2323-2332

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Development of visible-light-responsive Ir and La-codoped KTaO3 photocatalysts for water splitting2021

    • Author(s)
      Akihide Iwase, Misono Haruka
    • Journal Title

      Chem. Commun.

      Volume: 57 Issue: 80 Pages: 10331-10334

    • DOI

      10.1039/d1cc04227k

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Z-schematic Solar Water Splitting Using Fine Particles of H2-evolving (CuGa)0.5ZnS2 Photocatalyst Prepared by a Flux Method with Chloride Salts2020

    • Author(s)
      Yoshino Shunya、Iwase Akihide、Ng Yun Hau、Amal Rose、Kudo Akihiko
    • Journal Title

      ACS Applied Energy Materials

      Volume: - Issue: 6 Pages: 5684-5692

    • DOI

      10.1021/acsaem.0c00661

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Solar Water Splitting under Neutral Conditions Using Z‐Scheme Systems with Mo‐Doped BiVO4 as an O2‐Evolving Photocatalyst2019

    • Author(s)
      Iwase Akihide、Udagawa Yuhei、Yoshino Shunya、Ng Yun Hau、Amal Rose、Kudo Akihiko
    • Journal Title

      Energy Technology

      Volume: 7 Issue: 8 Pages: 1900358-1900358

    • DOI

      10.1002/ente.201900358

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Cu3MS4 (M=V, Nb, Ta) and its solid solutions with sulvanite structure for photocatalytic and photoelectrochemical H2 evolution under visible-light irradiation2019

    • Author(s)
      Satoru Ikeda, Naruhiko Aono, Akihide Iwase, Hisayoshi Kobayashi, Akihiko Kudo
    • Journal Title

      ChemSusChem

      Volume: 12 Issue: 9 Pages: 1977-1983

    • DOI

      10.1002/cssc.201802702

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Presentation] (CuGa)0.5ZnS2水素生成光触媒および非金属酸化物酸素生成光触媒を組み合わせたZスキーム型可視光水分解2023

    • Author(s)
      守屋 海沙,吉野 隼矢,加藤 英樹,岩瀬 顕秀
    • Organizer
      日本化学会第103春季年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] IrおよびLaを共ドープしたNaTaO3光触媒による可視光水分解2023

    • Author(s)
      佐藤 太一,御園 はるか,岩瀬 顕秀
    • Organizer
      日本化学会第103春季年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] RuをドープしたKTaO3光触媒による可視光水分解およびその光触媒特性におけるLa共ドープ効果2023

    • Author(s)
      笠原未祐,御園はるか,岩瀬顕秀
    • Organizer
      第131回触媒討論会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Zスキーム型可視光水分解のための表面修飾により高性能化した金属硫化物水素生成光触媒2022

    • Author(s)
      八木下 紘輝,岩瀬 顕秀
    • Organizer
      第32回日本MRS年次大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 金属硫化物水素生成光触媒を用いたZスキーム型可視光水分解における表面修飾効果2022

    • Author(s)
      八木下紘輝,岩瀬顕秀
    • Organizer
      第12回CSJ化学フェスタ2022
    • Related Report
      2022 Annual Research Report
  • [Presentation] アモルファス金属錯体法で合成したIrおよびLa共ドープK1-xNaxTaO3光触媒による可視光水分解2022

    • Author(s)
      御園はるか, 加藤英樹, 岩瀬顕秀
    • Organizer
      第12回CSJ化学フェスタ2022
    • Related Report
      2022 Annual Research Report
  • [Presentation] 表面修飾により高性能化した金属硫化物水素生成光触媒を用いたZスキーム型水分解2022

    • Author(s)
      八木下紘輝,岩瀬顕秀
    • Organizer
      第130回触媒討論会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 種々の合成法で合成したIrおよびLaを共ドープしたK1-xNaxTaO3光触媒による可視光水分解2022

    • Author(s)
      御園はるか, 加藤英樹, 岩瀬顕秀
    • Organizer
      第130回触媒討論会
    • Related Report
      2022 Annual Research Report
  • [Presentation] (CuGa)0.5ZnS2還元用光触媒,BiVO4酸素生成光触媒および還元型酸化グラフェン電子伝達剤を用いたZスキーム型可視光二酸化炭素還元における金属および金属酸化物の添加効果2022

    • Author(s)
      守屋海沙,岩瀬顕秀
    • Organizer
      2022年光化学討論会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Visible-light-responsive Ir and La-codoped K1-xNaxTaO3 photocatalysts for water splitting2022

    • Author(s)
      Haruka Misono, Akihide Iwase
    • Organizer
      12th International Conference on Environmental Catalysis (ICEC2022)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] One-step preparation of reduced graphene oxide incorporated BiVO4 photocatalyst with various cocatalysts for Z-schematic water splitting2022

    • Author(s)
      Misa Moriya, Akihide Iwase
    • Organizer
      The 9th Tokyo Conference on Advanced Catalytic Science and Technology (TOCAT9)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Surface Treated (CuGa)0.5ZnS2 as a H2-Evolving Photocatalyst for Enhanced Z-Schematic Water Splitting under Visible Light Irradiation2022

    • Author(s)
      Koki Yagishita, Akihide Iwase
    • Organizer
      The 9th Tokyo Conference on Advanced Catalytic Science and Technology (TOCAT9)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 表面処理により高性能化した助触媒未担持の(CuGa)0.5ZnS2水素生成光触媒を用いたZスキーム型可視光水分解2022

    • Author(s)
      八木下紘輝,岩瀬顕秀
    • Organizer
      第41回光がかかわる触媒化学シンポジウム
    • Related Report
      2022 Annual Research Report
  • [Presentation] 可視光およびソーラー水分解のためのIrおよびLa共ドープK1-xNaxTaO3光触媒の開発2022

    • Author(s)
      御園はるか,岩瀬顕秀
    • Organizer
      第41回光がかかわる触媒化学シンポジウム
    • Related Report
      2022 Annual Research Report
  • [Presentation] IrおよびLaを共ドープしたKxNaxTaO3光触媒による可視光水分解2022

    • Author(s)
      御園はるか,岩瀬顕秀
    • Organizer
      第129回触媒討論会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 表面処理により高性能化した(CuGa)0.5ZnS2水素生成光触媒を用いたZスキーム型可視光水分解2022

    • Author(s)
      八木下紘輝,岩瀬顕秀
    • Organizer
      日本化学会第102春季年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Development of Z-scheme systems for water splitting under visible light irradiation using a reduced graphene oxide as an electron mediator and non-oxide material as an O2-evolving photocatalyst2021

    • Author(s)
      Misa Moriya, Hideki Kato, Akihide Iwase
    • Organizer
      Pacifichem2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Overall water splitting under visible light irradiation over Ir-doped KTaO3; photocatalysts2021

    • Author(s)
      Haruka Misono,Akihide Iwase
    • Organizer
      Pacifichem2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Novel Preparation Method of Reduced Graphene Oxide-Incorporated BiVO4 with various cocatalysts for Z-Schematic Water Splitting under Visible Light Irradiation2021

    • Author(s)
      守屋海沙,岩瀬顕秀
    • Organizer
      第31回日本MRS年次大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 種々の助触媒を担持したBiVO4酸素生成光触媒を(CuGa)0.5ZnS2光触媒と組み合わせたZスキーム系による可視光水分解2021

    • Author(s)
      守屋海沙,岩瀬顕秀
    • Organizer
      第11回CSJ化学フェスタ2021
    • Related Report
      2021 Annual Research Report
  • [Presentation] 可視光水分解に活性なIrおよびLaまたはアルカリ土類金属共ドープKTaO3;光触媒の開発2021

    • Author(s)
      御園はるか,岩瀬顕秀
    • Organizer
      第11回CSJ化学フェスタ2021
    • Related Report
      2021 Annual Research Report
  • [Presentation] 種々の助触媒を担持したBiVO4酸素生成光触媒を金属硫化物水素生成光触媒と組み合わせたZスキーム系による可視光水分解2021

    • Author(s)
      守屋海沙,岩瀬顕秀
    • Organizer
      第128回触媒討論会
    • Related Report
      2021 Annual Research Report
  • [Presentation] IrおよびLaまたはアルカリ土類金属を共ドープしたKTaO3;光触媒による可視光水分解2021

    • Author(s)
      御園はるか,岩瀬顕秀
    • Organizer
      第128回触媒討論会
    • Related Report
      2021 Annual Research Report
  • [Presentation] IrおよびLaを共ドープしたKTaO3;光触媒による可視光水分解2021

    • Author(s)
      御園はるか,岩瀬顕秀
    • Organizer
      第40回光がかかわる触媒化学シンポジウム
    • Related Report
      2021 Annual Research Report
  • [Presentation] Construction of Z-scheme Systems using Photocorrosive Metal Sulfide Photocatalysts for Water Splitting and CO2 Reduction2021

    • Author(s)
      Akihide Iwase, Shunya Yoshiko, Akihiko Kudo
    • Organizer
      The Twelfth International Conference on the Science and Technology for Advanced Ceramics
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Application of photocorrosive metal sulfide photocatalysts to artificial photosynthetic reactions2021

    • Author(s)
      Akihide Iwase, Shunya Yoshiko, Akihiko Kudo
    • Organizer
      2021 MRS Spring Meeting
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 多元硫化物光触媒による光ー化学エネルギー変換2021

    • Author(s)
      岩瀬顕秀,吉野隼矢,工藤昭彦
    • Organizer
      第69回応用物理学会春季学術講演会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] IrドープKTaO3光触媒による可視光照射下での犠牲試薬を含む水溶液からの水素および酸素生成2021

    • Author(s)
      御園はるか,岩瀬顕秀
    • Organizer
      第127回触媒討論会
    • Related Report
      2020 Annual Research Report
  • [Presentation] In-Fe複合酸化物を酸素生成光触媒に用いた可視光水分解のための固体間電子伝達型Zスキーム系の開発2021

    • Author(s)
      守屋海沙,三石雄悟,佐山和弘,岩瀬顕秀
    • Organizer
      日本化学会第102春期年会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 非金属酸化物酸素生成光触媒および還元型酸化グラフェンを組み合わせたZスキームによる可視光水分解2020

    • Author(s)
      守屋海沙,高濱太一,加藤英樹,岩瀬顕秀
    • Organizer
      第126回触媒討論会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 金属硫化物水素生成光触媒,長波長応答酸素生成光触媒および還元型酸化グラフェン電子伝達剤からなる可視光水分解のためのZ-スキーム系の開発2020

    • Author(s)
      守屋海沙,青柳良輔,三石雄悟,加藤英樹,佐山和弘,工藤昭彦,岩瀬顕秀
    • Organizer
      日本化学会第100春期年会
    • Related Report
      2019 Annual Research Report
  • [Book] Recent Developments in Functional Materials for Artificial Photosynthesis2023

    • Author(s)
      Stefano Protti, Nick Serpone, Qian Wang, Zhenhua Pan, Ying Luo, Zheng Wang, Hong He, Akihide Iwase, Srabanti Ghosh, Neha Verma, Rajakumar Ananthakrishnan, C. E. Creissen
    • Total Pages
      382
    • Publisher
      Royal Society of Chemistry
    • Related Report
      2022 Annual Research Report

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

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