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YANG Gui-peng, ZHAO Run-de, LU Xiao-lan, Gao Xian-chi. Study on photoreaction of Fe3+-amino acid complex in seawater[J]. Haiyang Xuebao, 2005, 27(3): 46-51.
Citation: YANG Gui-peng, ZHAO Run-de, LU Xiao-lan, Gao Xian-chi. Study on photoreaction of Fe3+-amino acid complex in seawater[J]. Haiyang Xuebao, 2005, 27(3): 46-51.

Study on photoreaction of Fe3+-amino acid complex in seawater

  • Received Date: 2004-12-03
  • Rev Recd Date: 2005-04-08
  • Study on the photochemical reaction of Fe3+-amino acid complex in seawater was conducted under high pressure lamp.In the presence of amino acid,the photoreduction rate constant of Fe3+ is affected by the amino acid concentration,pH,light intensity and temperature.When the proportion of amino acid and Fe3+ is above 2,the photoreduction reaction of Fe3+ at the early stage exhibits a first-order reaction kinetic pattern,but remains nearly stable after 100 min.High light irradiation and low pH value can enhance the photo reduction rate.On the contrary,the temperature has almost no effect on the photor eduction rate.It is proved that the process of photo reduction of Fe3+ is a ligand-to-metal charge transfer process stimulated by free radicals.
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