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DESIGN OF NEW PHOTOFUNCTIONAL MATERIALS BASED ON EXFOLIATED TWO DIMENSIONAL OXIDES

Research Project

Project/Area Number 08554028
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section展開研究
Research Field 機能・物性・材料
Research InstitutionTOKYO INSTITUTE OF TECHNOLOGY

Principal Investigator

DOMEN Kazunari  TOKYO INSTITUTE OF TECHNOLOGY,RESEARCH LABORATORY OF RESOURCES UTILIZATION,PROFESSOR, 資源科化学究所, 教授 (10155624)

Co-Investigator(Kenkyū-buntansha) HARA Michikazu  TOKYO INSTITUTE OF TECHNOLOGY,RESEARCH LABORATORY OF RESOURCES UTILIZATION,RESEA, 資源化学研究所, 助手 (70272713)
KONDO Junko N.  TOKYO INSTITUTE OF TECHNOLOGY,RESEARCH LABORATORY OF RESOURCES UTILIZATION,RESEA, 資源科学研究所, 助手 (60234936)
TANAKA Akira  NIKON CORPORATION,OPT-ELECTRONIC MATERIALS LABORATORY,MANAGER, 技術開発部・光機能材料研究室, 課長
Project Period (FY) 1996 – 1997
Project Status Completed (Fiscal Year 1997)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,900,000)
Fiscal Year 1997: ¥3,900,000 (Direct Cost: ¥3,900,000)
Keywordsphotofunctional materials / two dimensional compounds / exfoliation / ion exchange / intercalation / K_4Nb_6O_<17> / ソフトケミカル / メソポーラス多孔体 / MgO微粒子
Research Abstract

Photocatalysts recently attract a great attention from the view point of eco-friendliness. However, already found photocatalysts do not avail the visible light which dominates the solar light. Although several materials such as CdS were found to utilize the visible light, the eco-harm nature of them is the great disadvantage. We have found that the ion-exchangeable transition metal oxides are promising catalysts which have the photoresponse in visible light region. The serious problem of those materials are that their high interlayr electron density inhibit the intercalation of reactants and that the interlayr spase has not been efficiently utilized. On the other hand, the use of intercalation of organic ions such as tri-butyl-ammonium ion (TBA+) enabled the exfoliation of the layr to produce macropolyanion sheets highly dispersed in water. Furthermore, the dispersed two dimensional inorganic sheets were found to be starting materials of microporous materials and inorganic thin films. These novel materials demonstrated higher photoactivity than the original transition metal oxide and showed different chemical nature. The new types of layred materials were synthesized and are expected to be utilized as functional materials.

Report

(3 results)
  • 1997 Annual Research Report   Final Research Report Summary
  • 1996 Annual Research Report
  • Research Products

    (22 results)

All Other

All Publications (22 results)

  • [Publications] T.Takata: "Photocatalytic decomposition of water on spontaneously hydrated layered perovskite" Chem.Mater.9. 1063-1064 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] S.Ikeda: "Effect of the particle size for photocatalytic decomposition of water on Ni-loaded K_4Nb_6O_<17>" Microporous Mater.9. 253-258 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] T.Takata: "A highly active Photocatalyst for overall water splitting with a hydrated layered perovskite structure" J.Photochem.Photobiol.,A : Chemistry. 106. 45-49 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] R.Abe: "Preparation of porous niobium oxides by soft-chemical process and their photocatalytic activity" Chem.Mater.9・10. 2179-2194 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] S.Ikeda: "Preparation of K_4La_2Ti_3O_<10> by polymerized complex method and photocatalytic,decomposition of water" Chem. Mater.10・10. 72-77 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] R.Abe: "Preparation of thin films of a layer titanate by the exfoliation of Cs_XTi_<(2-X/4)>O_4" Chem.Mater.10・1. 329-333 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] T.TAKATA: "Photocatalytic decomposition of water on spontaneously hydrated layred perovskite" Chem.Mater.9. 1063-1064 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] S.IKEDA: "Effect of the particle size for photocatalytic decomposition of water on Ni-loaded K4Nb6O17" Microporous Mater.9. 235-258 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] T.TAKATA: "highly active photocatalyst for overall water splitting with a hydrated layred perovskite structure" J.Photochem.Photobiol., A : Chemistry. 106. 45-49 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] R.ABE: "Preparation of porous niobium oxides by soft-chemical peocess and their photocatalytic activity" Chem.Mater.9-10. 2179-2194 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] S.IKEDA: "Preparation of K2La2Ti3O10 by polymerized complex method and photocatalytic dedomposition of water" Chem.Mater.10-1. 72-77 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] R.ABE: "Preparation of thin films of a layr titanate by the exfoliation of CsxTi(2-X/4)O4" Chem.Mater.10-1. 329-333 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] T. Takata: "Photocatalytic decomposition of water on spontaneously hydrated layered perovskite" Chem. Mater. 9. 1063-1064 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] S. Ikeda: "Effect of the particle size for photocatalytic decomposition of water on Ni-loaded K_4Nb_6O_<17>" Microporous Mater.9. 253-258 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] T. Takata: "A highly active Photocatalyst for overall water splitting with a hydrated layered perovskits atructure" J. Photochem. Photobiol., A : Chemistry. 106. 45-49 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] R. Abe: "Preparation of porous niobium oxides by soft-chemical process and their photocatalytic activity" Chem. Mater. 9・10. 2179-2194 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] S. Ikeda: "Preparation of K_2La_2 Ti_3O_<10> by polymerized complex method and photocatalytic decomposition of water" Chem. Mater. 10・1. 72-77 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] R. Abe: "Preparation of thin films of a layer titanate by the exfoliation of Cs_xTi(_<2-X/4>)O_4" Chem. Mater. 10・1. 329-333 (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] K.Domen,Y.Ebina,S.Ikeda,A.Tanaka,and J.N.Kondo: "Layered Niobium Oxides.-pillaring and exfoliation-" Catal.Today. 28.

    • Related Report
      1996 Annual Research Report
  • [Publications] A.Tanaka and K.Domen: "Photocatalytic Properties of Some Ion-Exchangeable Layered Oxides" Critical Rev.Surf.Chem.(in press.). 167-174 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] S.Ikeda,A.Tanaka,K.Shinohara,M.Hara,J.N.Kondo,K.Maruya,and K.Domen: "Effect of the particle size for photocatalytic decomposition of water on Ni-loaded K_4Nb_6O_<17>" Microporous Materials. (in press.).

    • Related Report
      1996 Annual Research Report
  • [Publications] T.Takata,T.Furumi,A.Tanaka,M.Hara,K.Shinohara,J.N.Kondo,and K.Domen: "Photocatalytic decomposition of water on spontaneously hydrated layered perovskites" Chemistry of Materials. (in press.).

    • Related Report
      1996 Annual Research Report

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Published: 1997-04-01   Modified: 2016-04-21  

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