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Development of composite photocatalysts for the degradation of chlorinated organic compounds

Research Project

Project/Area Number 23550227
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Inorganic industrial materials
Research InstitutionYamaguchi University

Principal Investigator

YAMAZAKI SUZUKO  山口大学, 理工学研究科, 教授 (80202240)

Co-Investigator(Kenkyū-buntansha) ADACHI Kenta  山口大学, 大学院理工学研究科, 准教授 (80535245)
Project Period (FY) 2011 – 2013
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2011: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywords光触媒 / 複合型光触媒 / 酸化チタン / 酸化タングステン / 有機塩素化合物 / 環境浄化 / 環境材料 / 触媒・化学プロセス / 複合材料・物性
Research Abstract

Photocatalytic degradation of trichloroethylene (TCE) in TiO2 aqueous sol was enhanced by mixing with WO3 sol prepared from aqueous Na2WO4 solution and the best performance was obtained with TiO2:WO3 molar ratio of 2:1. The mixed sol was dried and calcined to form TiO2/WO3 composites and the photocatalytic activity was examined for the degradation of gaseous TCE. The conversion of TCE on the TiO2/WO3 composites was lower than that on TiO2, which was attributable to the low crystallinity of WO3. When the WO3 sol was prepared from ammonium paratungstate, monoclinic WO3 was formed by calcination at 500 oC. This WO3 sol was mixed with the TiO2 sol, dried and calcined. The obtained TiO2/WO3 composites showed higher conversion of TCE than that on TiO2.

Report

(4 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Research-status Report
  • 2011 Research-status Report
  • Research Products

    (4 results)

All 2013 2012 2011

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (2 results)

  • [Journal Article] Photocatalytic activity of aqueous WO3 sol for the degradation of Orange II and 4-chlorophenol2013

    • Author(s)
      S. Yamazaki, T. Yamate, K. Adachi
    • Journal Title

      Applied Catalysis A : General

      Volume: 454 Pages: 30-36

    • DOI

      10.1016/j.apcata.2012.12.038

    • Related Report
      2013 Final Research Report 2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Kinetics of photocatalytic degradation of trichloroethylene in aqueous colloidal solutions of TiO2 and WO3 nanoparticles2012

    • Author(s)
      T. Seyama, K. Adachi, S. Yamazaki
    • Journal Title

      Journal of Photochemistry and Photobiology A : Chemistry

      Volume: 249 Pages: 15-20

    • DOI

      10.1016/j.jphotochem.2012.09.001

    • Related Report
      2013 Final Research Report 2012 Research-status Report
    • Peer Reviewed
  • [Presentation] 酸化チタン-酸化タングステンハイブリッド系におけるトリクロロエチレンの光触媒分解反応2011

    • Author(s)
      瀬山智晶、安達健太、山﨑鈴子
    • Organizer
      2011年光化学討論会
    • Place of Presentation
      宮崎市民プラザ(宮崎市)(3P115)
    • Year and Date
      2011-09-08
    • Related Report
      2013 Final Research Report
  • [Presentation] 酸化チタン-酸化タングステンハイブリッド系におけるトリクロロエチレンの光触媒分解反応2011

    • Author(s)
      山崎鈴子
    • Organizer
      2011年光化学討論会
    • Place of Presentation
      宮崎市民プラザ(宮崎市)
    • Related Report
      2011 Research-status Report

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Published: 2011-08-05   Modified: 2019-07-29  

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