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ANTIBACTERIAL ACTIVITY OF POLYANILINE IN WATER |
SHI Nanlin, LIU Baoyun, ZHANG Yanying, GONG Jun, SUN Chao |
Institute of Metal Reserch, Chinese Academy of Sciences, Shenyang 110016 |
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Abstract Antibacterial activity of polyaniline and the mechanism in water was studied in this paper. The results indicated that the microorganism index of treated sewage water for urban by doped polyaniline could reach to the level of reclaimed water. Due to the dissolving out of doping acid the doped polyaniline could raise the COD (chemical oxygen demand) of wate and result in secondary pollution. In comparison, the antibacterial rate of emeraldine base polyaniline could reach up to 99% without contamination. The result of analysis by KI iodine-blue spectrophotometry reveals that the activity of active oxygen created by oxidation of polyaniline may be another antibacterial mechanism during treament of water.
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Received: 11 January 2011
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Corresponding Authors:
SHI Nanlin
E-mail: nlshi@imr.ac.cn.
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