Immobilization and release of copper species from a microstructured polypyrrole matrix

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• 作者：M.B. González ; L.I. Brugnoni ; D.O. Flamini…
• 关键词：Copper ; Polypyrrole ; Electropolymerization ; Salicylate ; Antibacterial activity
• 刊名：Environmental Monitoring and Assessment
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：189
• 期：2
• 全文大小：
• 刊物类别：Earth and Environmental Science
• 刊物主题：Monitoring/Environmental Analysis; Environmental Management; Ecotoxicology; Atmospheric Protection/Air Quality Control/Air Pollution; Ecology;
• 出版者：Springer International Publishing
• ISSN：1573-2959
• 卷排序：189

文摘

Copper species immobilization in hollow rectangular-sectioned microtubes of polypyrrole (PPy) electrosynthesized on 316L stainless steel was carried out using two different methods. One of them involved the immobilization after the PPy electropolymerization and the other one during the electrosynthesis process. The electrodes modified with copper species were rotated at different speeds in well water under open-circuit potential conditions. The release of copper species from the PPy matrix and the antibacterial activity against Escherichia coli were analyzed. The obtained results demonstrate that the amount of copper species released as well as the bactericidal effects against E. coli increases with rotation speed. The PPy coating modified with copper species after the electropolymerization reaction exhibited the best performance in terms of antibacterial activity and corrosion protection. These electrodes were tested in a lab-scale continuous flow system for well water disinfection.