Stabilization of platinum-loaded CdS photocatalyst by addition of EDTA.

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概要

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• The photocatalytic activity of platinum-loaded CdS powder in sulfite solutions declined by illumination over 200 h, and became half the initial activity at 600 h. By addition of small amount (2 mM) of ethylenediaminetetraacetic acid (EDTA) to the solution, however, the photocatalyst was guarded from deterioration. The effect of EDTA is to prevent the platinum part of photocatalyst from the impurity metal deposition by forming stable metal-EDTA complexes in the solution. The reactivities of sulfite ions, EDTA, and metal-EDTA complexes on illuminated CdS are examined electrochemically by use of CdS-sinter electrodes.

• 公益社団法人 日本化学会の論文

著者

• Matsumura Michio

  Laboratory For Chemical Conversion Of Solar Energy And Department Of Chemistry Faculty Of Engineerin

• TSUBOMURA Hiroshi

  Laboratory for Chemical Conversion of Solar Energy and Department of Chemistry, Faculty of Engineeri

• MATSUMURA Michio

  Laboratory for Chemical Conversion of Solar Energy and Department of Chemistry, Faculty of Engineering Science, Osaka University

• TSUBOMURA Hiroshi

  Laboratory for Chemical Conversion of Solar Energy and Department of Chemistry, Faculty of Engineering Science, Osaka University

• Ohnishi Hideyuki

  Laboratory for Chemical Conversion of Solar Energy and Department of Chemistry, Faculty of Engineering Science, Osaka University

• Hanafusa Koji

  Laboratory for Chemical Conversion of Solar Energy and Department of Chemistry, Faculty of Engineering Science, Osaka University

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