Comparative effects of TiO2-immobilized photocatalytic supporters on the bactericidal efficiency of a novel photoreactor

Jung Kon Kim; Hack Sun Choi; Eungbin Kim; Young Sang Lee; Yong Ho Kim; Si Wouk Kim

doi:10.1023/A:1019838228914

Comparative effects of TiO₂-immobilized photocatalytic supporters on the bactericidal efficiency of a novel photoreactor

Jung Kon Kim, Hack Sun Choi, Eungbin Kim, Young Sang Lee, Yong Ho Kim, Si Wouk Kim

Department of Systems Biology

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

A novel and highly effective UV-TiO₂ photocatalytic reactor was developed for killing microorganisms, including Escherichia coli. Among tested four types of TiO₂-immobilized photocatalytic supporters (glass bead, muscovite bead, alginate bead, and TiO₂ thin film coated quartz tube), the muscovite bead had a 99.9% percent bactericidal activity within 5 min along with permanent longevity. Adding air bubbles or H₂O₂ (<50 mg 1^-1) to the sample solution significantly enhanced the killing activity in that 100% percent of bacterial cells were killed within 3 min.

Original language	English
Pages (from-to)	1397-1400
Number of pages	4
Journal	Biotechnology Letters
Volume	24
Issue number	17
DOIs	https://doi.org/10.1023/A:1019838228914
Publication status	Published - 2002 Sept

Bibliographical note

Funding Information:
This work was supported by the special grants research program from Ministry of Agriculture (Project No. 299023-3) (2001), and ERC grant from Ministry of Science and Technology and KOSEF (2001) in Korea.

All Science Journal Classification (ASJC) codes

Biotechnology
Bioengineering
Applied Microbiology and Biotechnology

Access to Document

10.1023/A:1019838228914

Cite this

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title = "Comparative effects of TiO2-immobilized photocatalytic supporters on the bactericidal efficiency of a novel photoreactor",

abstract = "A novel and highly effective UV-TiO2 photocatalytic reactor was developed for killing microorganisms, including Escherichia coli. Among tested four types of TiO2-immobilized photocatalytic supporters (glass bead, muscovite bead, alginate bead, and TiO2 thin film coated quartz tube), the muscovite bead had a 99.9% percent bactericidal activity within 5 min along with permanent longevity. Adding air bubbles or H2O2 (<50 mg 1-1) to the sample solution significantly enhanced the killing activity in that 100% percent of bacterial cells were killed within 3 min.",

author = "Kim, {Jung Kon} and Choi, {Hack Sun} and Eungbin Kim and {Sang Lee}, Young and {Ho Kim}, Yong and {Wouk Kim}, Si",

note = "Funding Information: This work was supported by the special grants research program from Ministry of Agriculture (Project No. 299023-3) (2001), and ERC grant from Ministry of Science and Technology and KOSEF (2001) in Korea.",

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AU - Kim, Jung Kon

AU - Choi, Hack Sun

AU - Kim, Eungbin

AU - Sang Lee, Young

AU - Ho Kim, Yong

AU - Wouk Kim, Si

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AB - A novel and highly effective UV-TiO2 photocatalytic reactor was developed for killing microorganisms, including Escherichia coli. Among tested four types of TiO2-immobilized photocatalytic supporters (glass bead, muscovite bead, alginate bead, and TiO2 thin film coated quartz tube), the muscovite bead had a 99.9% percent bactericidal activity within 5 min along with permanent longevity. Adding air bubbles or H2O2 (<50 mg 1-1) to the sample solution significantly enhanced the killing activity in that 100% percent of bacterial cells were killed within 3 min.

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