Characterization and Photocatalytic Efficiency of TiO <inf>2</inf>/Ti Beads Fabricated by Simple Heat-Treatment

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Journal Article
Journal of Materials Science and Technology, 2012, 28 (2), pp. 184 - 192
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The goal of the present study was to investigate the photocatalytic efficiency of titanium dioxide (TiO 2) formed on titanium (Ti) bead substrate (referred herein as TiO 2/Ti beads) by heat treatment when exposing to ultraviolet (UV) light irradiation. Escherichia coli was used as the model test organism. The results show 4-log and 7-log decrease in bacterial concentration after a test time of 15 and 120 min, respectively, using TiO 2/Ti beads irradiated with UV light in a tin-foil covered beaker. This article presents the potential of TiO 2 on Ti bead substrate formed by simple heat-treatment together with UV light for bacterial inactivation. © 2012 The Chinese Society for Metals.
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