Instant inactivation and rapid decomposition of Escherichia coli using a high efficiency TiO2 nanotube array photoelectrode
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Highly ordered TiO2 nanotube (TNT) array film fabricated by anodisation was used as a photoelectrode in a thin-layer photoelectrochemical flow reactor, exhibiting excellent capability of instant inactivation and rapid decomposition of Escherichia coli (E. coli). With photoelectrocatalytic (PEC) treatment, 100% inactivation of E. coli (1.0 107 CFU mL 1) can be achieved within 97 s using TNT, which was almost 2.2 times faster than using a TiO2 nanoparticle (TNP) photoelectrode with a similar film thickness. The high efficiency TNT photoelectrode combining with the thin-layer photoelectrochemical flow reactor would be promising for scaling up application to effectively remove waterborne pathogens.
Copyright 2013 Royal Society of Chemistry. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal website for access to the definitive, published version.
Analytical Chemistry not elsewhere classified
Environmental Sciences not elsewhere classified