Instant inactivation and rapid decomposition of Escherichia coli using a high efficiency TiO2 nanotube array photoelectrode | Zendy

Xiaolu Liu | Zendy; Yanhe Han | Zendy; Guiying Li | Zendy; Haimin Zhang | Zendy; Huijun Zhao | Zendy

Open Access

Instant inactivation and rapid decomposition of Escherichia coli using a high efficiency TiO2 nanotube array photoelectrode

Author(s) -

Xiaolu Liu,

Yanhe Han,

Guiying Li,

Haimin Zhang,

Huijun Zhao

Publication year - 2013

Publication title -

rsc advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.746

H-Index - 148

ISSN - 2046-2069

DOI - 10.1039/c3ra43708f

Subject(s) - decomposition , layer (electronics) , materials science , escherichia coli , nanotechnology , nanoparticle , photocatalysis , thin film , nanotube , thin layer , chemical engineering , optoelectronics , chemistry , catalysis , carbon nanotube , organic chemistry , biochemistry , gene , engineering

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.Griffith Sciences, Griffith School of EnvironmentFull Tex

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