Journal
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
Volume 17, Issue 6, Pages 1685-1691Publisher
SPRINGER
DOI: 10.1007/s10008-013-2031-5
Keywords
Electrochemical disinfection; E. coli and S. aureus; Ferrocene; PAMAM dendrimer; Multiwalled carbon nanotubes (MWCNT)
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Funding
- National Natural Science Foundation of China [21075078, 21105056]
- Natural Science Foundation of Shandong province, China [ZR2010BM005, ZR2011BQ001]
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This work reported an efficient electrochemical treatment for drinking water disinfection using a pyrolytic graphite electrode modified with ferrocenyl tethered poly(amidoamine) dendrimers-multiwalled carbon nanotubes-chitosan nanocomposite. The influence parameters of electrochemical disinfection of Escherichia coli and Staphylococcus aureus, such as applied potential and sterilization time, were investigated. Further investigation indicated that almost all (99.99 %) of the initial bacteria were killed after applying a low potential of 0.4 V for 10 min. During the electrochemical disinfection process, the oxidized form of ferrocene was formed on electrode, which played a key role in the disinfection towards E. coli and S. aureus. Hence, the proposed method may provide potential application for the disinfection of drinking water.
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