Characterization and Photocatalytic Efficiency of TiO2/Ti Beads Fabricated by Simple Heat-Treatment

材料科学技术（英文）, 2012, 28(2): 184-192.

Characterization and Photocatalytic Efficiency of TiO2/Ti Beads Fabricated by Simple Heat-Treatment

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1.Department of Bionanosystem Engineering, Chonbuk National University, Jeonju, Jeonbuk 561-756, Korea／Power Engineering School, Mongolian University of Science and Technology, Ulaanbaatar, Mongolia

2.Division of Mechanical Design Engineering, Chonbuk National University, Jeonju, Jeonbuk 561-756, Korea／Department of Industrial and Information Systems Engineering, Cbonbuk National University, Jeonju, Jeonbuk 561756, Korea

3.Department of Bionanosystem Engineering, Chonbuk National University, Jeonju, Jeonbuk 561-756, Korea

4.Department of Bionanosystem Engineering, Chonbuk National University, Jeonju, Jeonbuk 561-756, Korea

5.Department of Bionanosystem Engineering, Chonbuk National University, Jeonju, Jeonbuk 561-756, Korea

6.Department of Industrial and Information Systems Engineering, Cbonbuk National University, Jeonju, Jeonbuk 561756, Korea

7.Department of Bionanosystem Engineering, Chonbuk National University, Jeonju, Jeonbuk 561-756, Korea／Division of Mechanical Design Engineering, Chonbuk National University, Jeonju, Jeonbuk 561-756, Korea

基金项目: a grant from the National Research Foundation (NRF) of Korea funded by the Korean Ministry of Education, Science and Technology (MEST) (Water Treatment Project 2011-0011807)

关键词：光催化效率 , TiO2 , Ti膜 , 热处理 , 紫外光照射 , 二氧化钛 , 表征 , 制备

Characterization and Photocatalytic Efficiency of TiO2/Ti Beads Fabricated by Simple Heat-Treatment

Keywords： Photocatalysis , Titanium dioxide , Bacterial inactivation , Heat treatment , Escherichia coli ,

The goal of the present study was to investigate the photocatalytic efficiency of titanium dioxide （TiO2） formed on titanium （Ti） bead substrate （referred herein as TiO2/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 TiO2/Ti beads irradiated with UV light in a tin-foil covered beaker. This article presents the potential of TiO2 on Ti bead substrate formed by simple heat-treatment together with UV light for bacterial inactivation.

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