Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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Photocatalytic Decompositions of Carboxylic Acid Derivatives by Semiconductors

  • Koon Ha Park (Department of Chemistry, College of Arts and Sciences, Chungnam National University) ;
  • Jung Hae Kim (Department of Chemistry, College of Arts and Sciences, Chungnam National University)
  • Published : 1991.08.20
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Abstract

Each aqueous solution (pH = 1) of acetic acid, acetamide, and acetonitrile produces carbon dioxide and hydrogen at 300 K when irradiated in the presence of semiconductors such as titanium dioxide, platinized titanium dioxide, etc. Similar results were obtained for each of benzoic acid, benzamide, and benzonitrile. Based on the relative amount of carbon dioxide, nitrile is believed to be transformed into carboxylic acid through the intermediacy of amide. A mechanism in which hydrogen atom and hydroxyl radical are involved is presented.

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