A study of the photodeposition over Ti/TiO2 electrode for electrochemical detection of heavy metal ions |
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| Institution: | 1. College of Chemistry and Environment, Fujian Province Key Laboratory of Morden Analytical Science and Separation Technology, Minnan Normal University, Zhangzhou 363000, PR China;2. Department of Chemistry, Graduate School of Science and Engineering, Shimane University, 1060 Nishikawatsu, Matsue, Shimane 690-8504, Japan |
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| Abstract: | Here we reported that UV light irradiation can significantly enhance sensitivity of Ti/TiO2 electrode for determination of trace heavy metal ions (such as Cu2 +, Pb2 + and Cd2 +) owing to the photodeposition of metal ions on the surface of electrodes. The sensitivity of heavy metal ions can be selectively enhanced over the Ti/TiO2 electrode, which is attributed to matching between potential of heavy metal ions and the position of the conduction band of TiO2. |
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