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The effect of Au for selective photo-oxidation of Au-supported metal oxides for biomass conversion

Research Project

Project/Area Number 20K15322
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 34030:Green sustainable chemistry and environmental chemistry-related
Research InstitutionYamaguchi University

Principal Investigator

Mochizuki Chihiro  山口大学, 大学院医学系研究科, 助教 (80831875)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2021: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2020: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Keywords5-ヒドロキシメチルフルフラール / 2,5-ジホルミルフラン / フラン-2,5-ジカルボン酸 / バイオマス / 光触媒 / 酸化ニオブ / Auナノ粒子 / プラズモン / 金ナノ粒子 / 助触媒 / プラズモン共鳴
Outline of Research at the Start

非可食性バイオマス由来の5-Hydroxymethylfurfural (HMF)から2,5-diformylfuran (DFF), さらには2,5-Furandicarboxylic acid (FDCA)への選択的酸化はバイオマス有効利用の課題である. また担持金ナノ粒子触媒は選択的酸化等に対し優れた触媒活性を有するだけでなく, 局在表面プラズモン共鳴 (LSPR)の性質を活かした光触媒作用反応も知られている. 本申請課題では, HMF酸化反応において, 金ナノ粒子-酸化ニオブ(Au/Nb2O5)触媒に 光エネルギーを与える事で得られる効果について明らかにすることを目的とする.

Outline of Final Research Achievements

Oxidation of 5-Hydroxymethylfurfural (HMF), especially the hydroxymethyl (-CH2OH) moiety, is vital for synthesizing furan-2,5-dicarboxylic acid (FDCA). Therefore, we focused on selective photo-oxidation of HMF to 2,5-diformylfuran (DFF). Various kinds of metal oxides have been screened in the photocatalytic reaction and the metal nanoparticles were deposited on the metal oxides aiming to improve the photocatalytic activity. Usually, the oxidation of HMF to DFF needs a high temperature. However, the orthorhombic-phase Nb2O5 (Nb2O5-T) supported Au nanoparticles (NPs) catalyst showed extremely high selectivity (92%) for the photo-oxidation of HMF to DFF at room temperature. In addition to achieving the selective oxidation of HMF to DFF with high selectivity, Au/Nb2O5-T also showed high activity of FDCA oxidation from HMF under light irradiation at room temperature with base condition.

Academic Significance and Societal Importance of the Research Achievements

如何に少ない投入エネルギーでバイオマスから高付加価値材料への変換を実現するかという技術的・学術的な問いは, 持続可能な社会の実現のために避けて通れない重要な課題である. AuとNb2O5の光触媒作用を利用した触媒の高機能化によって, バイオマスから高機能プラスチック原料FDCAの製造がより高効率・低環境負荷で可能となれば, 持続可能な社会の実現に大きく寄与できる. 今後はNb2O5で得られた知見を基に種々のAu/MOxに展開することで, これまで困難であった選択的反応を実現し, Au/MOx光触媒特性の有用性を示すことができる.

Report

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

    (8 results)

All 2023 2022 2021 2020

All Journal Article (8 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 8 results,  Open Access: 3 results)

  • [Journal Article] Effects of Au States in Thiol-Organosilica Nanoparticles on Enzyme-like Activity for X-ray Sensitizer Application: Focus on Reactive Oxygen Species Generation in Radiotherapy2023

    • Author(s)
      Mochizuki Chihiro、Nakamura Junna、Nakamura Michihiro
    • Journal Title

      ACS Omega

      Volume: 8 Issue: 10 Pages: 9569-9582

    • DOI

      10.1021/acsomega.3c00096

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Preparation of Fetal Bovine Serum Copper Phosphate Hybrid Particles under Cell Culture Conditions for Cancer Cell Treatment2022

    • Author(s)
      Mochizuki Chihiro、Nakamura Junna、Nakamura Michihiro
    • Journal Title

      ACS Omega

      Volume: 7 Issue: 33 Pages: 29495-29501

    • DOI

      10.1021/acsomega.2c04096

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Photostable and Biocompatible Luminescent Thiol-Terminated Organosilica Nanoparticles with Embedded Au(I)-Thiolate Complexes for Fluorescent Microscopic Imaging2021

    • Author(s)
      Mochizuki Chihiro、Nakamura Junna、Nakamura Michihiro
    • Journal Title

      ACS Applied Nano Materials

      Volume: 4 Issue: 12 Pages: 13305-13318

    • DOI

      10.1021/acsanm.1c02826

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Development of Non-Porous Silica Nanoparticles towards Cancer Photo-Theranostics2021

    • Author(s)
      Mochizuki Chihiro、Nakamura Junna、Nakamura Michihiro
    • Journal Title

      Biomedicines

      Volume: 9 Issue: 1 Pages: 73-73

    • DOI

      10.3390/biomedicines9010073

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Protein corona components of polyethylene glycol-conjugated organosilica nanoparticles modulates macrophage uptake2021

    • Author(s)
      Kim Hyungjin、Roth Daniel、Isoe Yasuhiro、Hayashi Koichiro、Mochizuki Chihiro、Kalkum Markus、Nakamura Michihiro
    • Journal Title

      Colloids and Surfaces B: Biointerfaces

      Volume: 199 Pages: 111527-111527

    • DOI

      10.1016/j.colsurfb.2020.111527

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Near-Infrared Fluorescent Thiol-Organosilica Nanoparticles That Are Functionalized with IR-820 and Their Applications for Long-Term Imaging of in Situ Labeled Cells and Depth-Dependent Tumor in Vivo Imaging2020

    • Author(s)
      Nakamura Michihiro、Hayashi Koichiro、Nakamura Junna、Mochizuki Chihiro、Murakami Takuya、Miki Hirokazu、Ozaki Shuji、Abe Masahiro
    • Journal Title

      Chemistry of Materials

      Volume: 32 Issue: 17 Pages: 7201-7214

    • DOI

      10.1021/acs.chemmater.0c01414

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Elucidation of Active Sites of Gold Nanoparticles on Acidic Ta2O5 Supports for CO Oxidation2020

    • Author(s)
      M. Lin, C. Mochizuki, B. An, Y. Inomata, T. Ishida, M. Haruta, T. Murayama
    • Journal Title

      ACS Catal.

      Volume: 10 Issue: 16 Pages: 9328-9335

    • DOI

      10.1021/acscatal.0c01966

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Ligand Effect of Gold Colloid in the Preparation of Au/Nb2O5 for CO Oxidation2020

    • Author(s)
      Lin M, Mochizuki C, An B, Honma T, Haruta M, Ishida T, Murayama T.
    • Journal Title

      Journal of Catalysis

      Volume: 389 Pages: 9-18

    • DOI

      10.1016/j.jcat.2020.05.014

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research

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

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