• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Oxidative destruction of refractory organic matter by titania-based metal single-atom co-catalyst

Research Project

Project/Area Number 22KF0180
Project/Area Number (Other) 21F21399 (2021-2022)
Research Category

Grant-in-Aid for JSPS Fellows

Allocation TypeMulti-year Fund (2023)
Single-year Grants (2021-2022)
Section外国
Review Section Basic Section 64020:Environmental load reduction and remediation-related
Research InstitutionKyoto University

Principal Investigator

高岡 昌輝  京都大学, 工学研究科, 教授 (80252485)

Co-Investigator(Kenkyū-buntansha) CAI JIABAI  京都大学, 工学研究科, 外国人特別研究員
Project Period (FY) 2023-03-08 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥2,200,000 (Direct Cost: ¥2,200,000)
Fiscal Year 2023: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 2022: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 2021: ¥800,000 (Direct Cost: ¥800,000)
Keywords触媒 / 難分解有機物 / 金属単原子 / 中空構造 / Catalyst / Characterization / Degradation / Mechanism / Lechate
Outline of Research at the Start

Focusing on the regulation of the performance of functional nano materials with multi-level structure, this research explores its catalytic performance, and the catalytic oxidation treatment technology of humic acid and other refractory pollutants.

Outline of Annual Research Achievements

本研究では中空構造のチタン酸化物を中心に金属単原子を担持させた触媒によって、薬品を使わずに難分解性有機物、特にフミン酸(HA)の触媒分解を行い、その機構の解明と分解技術の高度化を行った。
ジルコニウム酸化物とチタン酸化物をベースに新規な高担持Cu単原子触媒(TiZrO4@CuSA)を真空含浸法と共焼成法を用いて合成し、低温でのHAの酸化促進に用い、90%以上の分解率を得た。次に、カーボンナノチューブの壁に高密度に銅原子を埋め込んだ触媒(CNT@CuSA)を合成し、HAを無機化する研究を行った。CuSAの質量比が8.39%のCNT@CuSAは優れた触媒活性を示し、溶液中のHAの99%が分解され、98%が無機化された。さらには、その分解メカニズムを解明し、高触媒活性に関する知見を得た。これらの知見を元に、実際の廃棄物最終処分場浸出水に対してTiZrO4@CuSAを用いて低温触媒空気酸化により有機物質の分解を試みるとともに、バイオガススラリーを対象とした研究も行った。いずれにおいても分解メカニズム及び分解経路を様々な分析を行って推定した。今回の研究において廃棄物最終処分場やバイオガススラリーなどに対して提示した新しい触媒は、低温での接触空気酸化の高い性能を保証し、排水中の難分解有機物の処理のための環境に優しく省エネルギーな方法として大きな可能性を持っていることが示された。
今回対象とした有機廃水以外においても適用が期待される範囲は大きいと思われ、本技術は期待される。

Report

(3 results)
  • 2023 Annual Research Report
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • Research Products

    (10 results)

All 2023 2022 Other

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

  • [Int'l Joint Research] Tsinghua University(中国)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] 清華大学(中国)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] 清華大学(中国)

    • Related Report
      2021 Annual Research Report
  • [Journal Article] Biogas slurry recirculation regulates food waste fermentation: Effects and mechanisms2023

    • Author(s)
      Yang Luxin、Chen Liang、Zhao Chuyun、Li Huan、Cai Jiabai、Deng Zhou、Liu Mengqian
    • Journal Title

      Journal of Environmental Management

      Volume: 347 Pages: 119101-119101

    • DOI

      10.1016/j.jenvman.2023.119101

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Degradation of microplastics during wet air oxidation treatment2023

    • Author(s)
      Wang Lin、Li Huan、Cai Jiabai
    • Journal Title

      Chemical Engineering Journal

      Volume: 474 Pages: 145653-145653

    • DOI

      10.1016/j.cej.2023.145653

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Atomically dispersed copper sites on titanium zirconium oxide accelerate the simultaneous oxidative removal of organic carbon and ammonia from landfill leachate2023

    • Author(s)
      Cai Jiabai、Li Huan、Jing Qi、Feng Kai、Takaoka Masaki
    • Journal Title

      Journal of Hazardous Materials

      Volume: 457 Pages: 131773-131773

    • DOI

      10.1016/j.jhazmat.2023.131773

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Enhanced methane production from the co-digestion of food waste and thermally hydrolyzed sludge filtrate2023

    • Author(s)
      Feng Kai、Yang Luxin、Chen Liang、Jing Qi、Li Huan、Li Debin、Liu Jiayi、Cai Jiabai、Deng Zhou
    • Journal Title

      Journal of Environmental Management

      Volume: 342 Pages: 118169-118169

    • DOI

      10.1016/j.jenvman.2023.118169

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Low-temperature degradation of humic acid via titanium zirconium oxide@copper single-atom activating oxygen: Mechanism and pathways2022

    • Author(s)
      Cai Jiabai、Li Huan、Feng Kai、Cheng Yingchao、He Shuting、Takaoka Masaki
    • Journal Title

      Chemical Engineering Journal

      Volume: 450 Pages: 138239-138239

    • DOI

      10.1016/j.cej.2022.138239

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Mineralize complex organic contaminants using only oxygen on dense copper atoms embedded in the walls of carbon nanotubes2022

    • Author(s)
      Cai Jiabai、Jing Qi、Li Huan、Wang Lin、Cheng Yingchao、Takaoka Masaki
    • Journal Title

      Applied Surface Science

      Volume: 605 Pages: 154760-154760

    • DOI

      10.1016/j.apsusc.2022.154760

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Copper atoms inlaid in titanium zirconium oxide spherical shell for the robust Fenton-like treatment of complex biogas slurry2022

    • Author(s)
      JIABAI CAI, Huan Li, Masaki Takaoka
    • Organizer
      廃棄物資源循環学会
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research

URL: 

Published: 2022-02-08   Modified: 2024-12-25  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi