Photoelectrocatalytic Inactivation of E. coli by ZnSe/CdS Co-sensitized TiO2 Nanotube Array

Jianmei ZOU; VanManh NGUYEN; Xuehua YIN; Zeming WU; Qingyun CAI

doi:10.2116/analsci.32.607

Original Papers

Photoelectrocatalytic Inactivation of E. coli by ZnSe/CdS Co-sensitized TiO₂ Nanotube Array

Jianmei ZOU, VanManh NGUYEN, Xuehua YIN, Zeming WU, Qingyun CAI

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Keywords: TiO₂ nanotube array, ZnSe, CdS, photoelectrocatalytic inactivation, E. coli

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Supplementary material

2016 Volume 32 Issue 6 Pages 607-610

DOI https://doi.org/10.2116/analsci.32.607

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Abstract

A step-wise structural ZnSe/CdS co-sensitized TiO₂ nanotube (NT) electrode was prepared by pulse-electrodeposition and successive ionic layer adsorption and reaction (SILAR), with an aim towards enhancing the absorption efficiency of TiO₂ NTs in visible light region and enhancing the photo-electrical transform efficiency. The as-prepared CdS/ZnSe/TiO₂ NTs were applied to the photoelectrocatalytic inactivation of E. coli. A complete inactivation of 3.0 × 10⁸ cfu mL⁻¹ E. coli was observed after 60 min of photoelectrocatalysis process under the illumination of visble light.

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