Photocatalytic Preparation of Cuprous Oxide Crystals Using a TiO2 Catalyst

• Sanuki Sumiko

  Department of Material Systems Engineering and Life Science, Faculty of Engineering, Toyama University

• Nakagawa Kazuyuki

  Department of Material Systems Engineering and Life Science, Faculty of Engineering, Toyama University

• Kato Tomoko

  Department of Material Systems Engineering and Life Science, Faculty of Engineering, Toyama University

• Nagaoka Shigeru

  Research and Development Department, Titan Kogyo K.K.

• Majima Hiroshi

  Professor Emeritus, Kyoto University, and Special Advisor, Titan Kogyo K.K.

書誌事項

タイトル別名

• Photocatalytic Preparation of Cuprous Oxide Crystals Using a TiO<SUB>2</SUB> Catalyst

抄録

Reddish cuprous oxide crystals can be readily formed by irradiating an aqueous alkaline Cu(II) solution containing suitable complexing agents with UV or sunlight in the presence of a photocatalyst such as TiO₂ or ZnO . Various factors, including the Cu(II) concentration, pH of the Cu(II) solution, amount of TiO₂ catalyst, method used to agitate the test suspension, concentration of potassium sodium tartarate, and intensity of UV radiation, affecting cuprous oxide preparations were investigated. Concentrations of Cu(II) and potassium sodium tartarate have no significant effect on reaction rates, while pH, and amount of TiO₂, play important roles in the reaction. The dispersion of TiO₂ in Cu(II) solution is another important factor. Cu(II) reduction rate is not affected as far as the amount of reduced Cu(II) plotted against the cumulative intensity of UV radiation is concerned. It is necessary to stop the cuprous oxide formation before the complete reduction of Cu(II), since metallic copper is formed on cuprous oxide.

収録刊行物

• MATERIALS TRANSACTIONS

  MATERIALS TRANSACTIONS 43 (12), 3247-3253, 2002

  公益社団法人 日本金属学会

キーワード

• photocatalytic preparation
• cuprous oxide
• reddish crystals
• TiO<SUB>2</SUB> catalyst

詳細情報

• CRID: 1390001204251629184
• NII論文ID: 10012329689
• NII書誌ID: AA1151294X
• DOI: 10.2320/matertrans.43.3247
• COI: 1:CAS:528:DC%2BD3sXhtF2msbc%3D
• ISSN: 13475320
• ISSN: 13459678
• NDL書誌ID: 6395745
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6395745
• Web Site: https://www.jstage.jst.go.jp/article/matertrans/43/12/43_12_3247/_pdf
• 本文言語コード: en
• データソース種別:
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  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可