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Fabrication of active photocatalysts in visible light using plasmas

Research Project

Project/Area Number 16K13917
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Plasma science
Research InstitutionNagoya University

Principal Investigator

Kajita Shin  名古屋大学, 未来材料・システム研究所, 准教授 (00455297)

Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2017: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2016: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywordsヘリウム / プラズマ / 光触媒 / ナノ構造 / チタン / エチレン / ヘリウムプラズマ / プラズマ加工 / 触媒・化学プロセス
Outline of Final Research Achievements

Helium plasma irradiation of metals such as tantalum, iron, niobium, and vanadium was performed at the plasma device NAGDIS-II. It was clarified that the fiberform nanostructure was formed by helium plasma irradiation in tantalum, iron, niobium and vanadium, and the plasma irradiation conditions (fluence, irradiation temperature, incident ion energy) were clarified.
Photocatalytic activities were evaluated for various materials under irradiation with helium plasma. For titanium oxide and vanadium oxide, the improvement of hydrogen generation from methanol / ethanol aqueous solution was confirmed, and for niobium oxide, the improvement of the decomposition rate of methylene blue was confirmed for the material supporting platinum.

Academic Significance and Societal Importance of the Research Achievements

高効率で可視光応答性を有する光触媒材料の創成は重要な研究課題である。本研究ではヘリウムプラズマ照射を用いた材料のナノ構造化という現象を光触媒応用へと展開を図ることを目的として研究を行った。タンタル,鉄,ニオブ,バナジウム等光触媒に利用される金属において,ヘリウム照射により繊維状ナノ構造が形成されること,そのプラズマ照射条件(フルエンス,照射温度,入射イオンエネルギー)を明らかにし,光触媒活性を評価した。酸化チタン,酸化バナジウムにおいてはメタノール/エタノール水溶液からの水素生成の向上を確認し,酸化ニオブにおいてはプラチナを担持した材料においてメチレンブルーの分解速度の向上を確認した。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (22 results)

All 2018 2017 2016

All Journal Article (8 results) (of which Peer Reviewed: 8 results,  Open Access: 4 results,  Acknowledgement Compliant: 2 results) Presentation (14 results) (of which Int'l Joint Research: 8 results,  Invited: 1 results)

  • [Journal Article] Nanostructure Growth on Rhodium/Ruthenium by the Exposure to He Plasma2018

    • Author(s)
      NOJIMA Tomohiro、KAJITA Shin、YOSHIDA Naoaki、KAWAGUCHI Shota、OHNO Noriyasu、TANAKA Hirohiko、TOKITANI Masayuki、NAGATA Daisuke、AKIYAMA Tsuyoshi、YAGI Takashi
    • Journal Title

      Plasma and Fusion Research

      Volume: 13 Issue: 0 Pages: 3406065-3406065

    • DOI

      10.1585/pfr.13.3406065

    • NAID

      130007437756

    • ISSN
      1880-6821
    • Year and Date
      2018-06-12
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Morphology Changes of Platinum and Tungsten Carbide by He Plasma Irradiation2018

    • Author(s)
      TOMITA Yudai、KAJITA Shin、OHNO Noriyasu、TANAKA Hirohiko、ICHINO Yusuke
    • Journal Title

      Plasma and Fusion Research

      Volume: 13 Issue: 0 Pages: 3406074-3406074

    • DOI

      10.1585/pfr.13.3406074

    • NAID

      130007437752

    • ISSN
      1880-6821
    • Year and Date
      2018-06-12
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] One-Step Plasma Synthesis of Nb2O5 Nanofibers and their Enhanced Photocatalytic activity2018

    • Author(s)
      Kajita Shin、Mimuro Fumiaki、Yoshida Tomoko、Ohno Noriyasu、Yoshida Naoaki
    • Journal Title

      ChemPhysChem

      Volume: 19 Issue: 23 Pages: 3237-3246

    • DOI

      10.1002/cphc.201800769

    • NAID

      120006733920

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Fabrication of photocatalytically active vanadium oxide nanostructures via plasma route2018

    • Author(s)
      Kajita Shin、Yoshida Tomoko、Ohno Noriyasu、Ichino Yusuke、Yoshida Naoaki
    • Journal Title

      Journal of Physics D: Applied Physics

      Volume: 51 Issue: 21 Pages: 215201-215201

    • DOI

      10.1088/1361-6463/aabe44

    • NAID

      120006733921

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Pulsation Effects of Incident Ion Energy on W Fuzz Growth2018

    • Author(s)
      S.Kajita; S.Kawaguchi; D.Hwangbo; H.Tanaka; N.Ohno
    • Journal Title

      Plasma and Fusion Research:Rapid Communications

      Volume: 13

    • NAID

      130006434144

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Fuzzy nanostructure growth on precious metals by He plasma irradiation2018

    • Author(s)
      S.Kajita; T.Nojima; Y.Tomita; N.Ohno; H.Tanaka; N.Yoshida; M.Yajima; T.Akiyama; M.Tokitani; T.Yagi
    • Journal Title

      Surface and Coatings Technology

      Volume: 340 Pages: 86-92

    • NAID

      120006733922

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Fuzzy nanostructure growth on Ta/Fe by He plasma irradiation2016

    • Author(s)
      S.Kajita, T.Ishida, N.Ohno, D.Hwangbo, T.Yoshida
    • Journal Title

      Scientific Reports

      Volume: 6 Issue: 1 Pages: 30380-30380

    • DOI

      10.1038/srep30380

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Enhancement of photocatalytic activity of TiO2 by plasma irradiation2016

    • Author(s)
      S.Kajita, T.Yoshida, N.Ohno, T.Ishida, D.Kitaoka
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 55 Issue: 10 Pages: 106202-106202

    • DOI

      10.7567/jjap.55.106202

    • NAID

      120005905581

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] Novel nanostructurization method using helium plasmas:vanadium and niobium oxides for photocatalysis2018

    • Author(s)
      S.Kajita, F.Mimuro, T.Yoshida, N.Ohno, N.Yoshida
    • Organizer
      TOCAT8
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Fabrication of nanostructured TiO2 by He plasma irradiation2018

    • Author(s)
      Y.Tomita; S.Kajita; E.Yasunaga; T.Yoshida; N.Ohno; H.Tanaka
    • Organizer
      IS-PLASMA2018
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] He Plasma Irradiation to Noble Metals2018

    • Author(s)
      T.Nojima; S.Kajita; N.Yoshida; N.Ohno; H.Tanaka; T.Akiyama; T.Yagi
    • Organizer
      IS-PLASMA2018
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Morphology changes of Niobium Surface irradiated with helium plasmas2017

    • Author(s)
      F.Mimuro, S.Kajita, N.Ohno, T.Yoshida
    • Organizer
      ISPlasma2017
    • Place of Presentation
      Chubu Univ., Japan
    • Year and Date
      2017-03-01
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Fuzzy nanostructure growth on precious metals by He plasma irradiation2017

    • Author(s)
      S.Kajita
    • Organizer
      ICPIG2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Morphology changes of platinum and tungsten carbide by He plasma irradiation2017

    • Author(s)
      Y.Tomita; S.Kajita; N.Ohno; H.Tanaka; Y.Ichino
    • Organizer
      ITC-26/APFA-11(土岐コン)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Nanostructure growth on rhodium/ruthenium by the exposure to He plasma2017

    • Author(s)
      T.Nojima; S.Kajita; N.Yoshida; S.Kawaguchi; N.Ohno; H.Tanaka; T.Akiyama; T.Yagi
    • Organizer
      ITC-26/APFA-11(土岐コン)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Formation of nanostructures on platinum thin film and tungsten carbide by helium plasma irradiation2017

    • Author(s)
      Y. Tomita; S. Kajita; N. Ohno; H. Tanaka; and Y. Ichino
    • Organizer
      ICMaSS 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Heプラズマ照射による白金と炭化タングステンの微細構造形成2017

    • Author(s)
      富田 雄大、梶田 信、大野 啓靖、田中 宏彦、安永 円理子、本島 厳
    • Organizer
      Plasma Conference 2017
    • Related Report
      2017 Research-status Report
  • [Presentation] V/Nbへのヘリウム照射効果と光照射水分解による水素生成2017

    • Author(s)
      梶田 信、吉田 朋子、三室 文明、大野 哲靖
    • Organizer
      Plasma Conference 2017
    • Related Report
      2017 Research-status Report
  • [Presentation] ヘリウムプラズマ照射によるロジウム・ルテニウムの表面構造変化2017

    • Author(s)
      野嶋 智宏、梶田 信、吉田 直亮、河口 翔太、大野 哲靖、田中 宏彦、秋山 毅志、増崎 貴
    • Organizer
      Plasma Conference 2017
    • Related Report
      2017 Research-status Report
  • [Presentation] タングステン堆積環境下でのヘリウム照射効果2017

    • Author(s)
      梶田 信、河口 翔太、皇甫 度均、吉田 直亮、大野 哲靖
    • Organizer
      Plasma Conference 2017
    • Related Report
      2017 Research-status Report
  • [Presentation] ヘリウム入射イオンエネルギーのパルス的変化がタングステンナノ構造成長に与える影響2017

    • Author(s)
      河口 翔太,梶田 信,皇甫 度均,大野 哲靖,田中 宏彦,増﨑 貴
    • Organizer
      平成29年電気学会A部門大会
    • Related Report
      2017 Research-status Report
  • [Presentation] ヘリウムプラズマ照射によるナノニオブ作製とその光触媒活性評価2017

    • Author(s)
      三室文明、梶田信、大野哲靖、吉田朋子
    • Organizer
      第120回触媒討論会
    • Related Report
      2017 Research-status Report

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Published: 2016-04-21   Modified: 2020-03-30  

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