Optical-Response Extraction of Au(III) with Bis(2,2'-dipyridyl-6-yl)diazene and Octanoic Acid

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The optical-response extraction of Au(III) with an azo compound, bis(2,2′-dipyridyl-6-yl)diazene (BDPDA), was studied. The distribution ratio of Au was increased by the configuration change of BDPDA from <I>trans</I> to <I>cis</I> under UV irradiation (340 nm); however, the distribution ratios under UV irradiation were less than 3 times those under VIS irradiation (465 nm). For further improvement of optical-response extraction, the synergistic extraction of Au using octanoic acid as a synergist was tested. Octanoic acid was coordinated mainly with the complex of Au and <I>cis</I>-BDPDA, and effectively enhanced the hydrophobicity of the complex. The distribution ratio of Au under the UV irradiation increased with increasing the concentration of octanoic acid in the organic phase. In the presence of 3 mol/L octanoic acid, the distribution ratio under the UV irradiation reached up to 10 times that under the VIS irradiation.

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  • Journal of chemical engineering of Japan  

    Journal of chemical engineering of Japan 41(6), 470-473, 2008-06-01 

    The Society of Chemical Engineers, Japan

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各種コード

  • NII論文ID(NAID)
    10021110456
  • NII書誌ID(NCID)
    AA00709658
  • 本文言語コード
    ENG
  • 資料種別
    SHO
  • ISSN
    00219592
  • NDL 記事登録ID
    9544419
  • NDL 雑誌分類
    ZP1(科学技術--化学・化学工業)
  • NDL 請求記号
    Z53-R395
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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