TiO 2 Sol-gel method Fe 3 O 4 Fish pathogens The purpose of this research is to develop a bactericidal photocatalytic TiO 2 that can be activated by visible light and can be conveniently recollected for reusing. This research synthesizes the 22 to 33 nm TiO 2 /Fe 3 O 4 particles with magnetization
Photocatalytic bactericidal effect of TiO2 film on fish pathogens
β Scribed by T.C. Cheng; C.Y. Chang; C.I. Chang; C.J. Hwang; H.C. Hsu; D.Y. Wang; K.S. Yao
- Publisher
- Elsevier Science
- Year
- 2008
- Tongue
- English
- Weight
- 366 KB
- Volume
- 203
- Category
- Article
- ISSN
- 0257-8972
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β¦ Synopsis
Photocatalytic titanium dioxide (TiO 2 ) Fish pathogen UV In this research, fish bacteria pathogens, Streptococcus iniae and Edwardsiella tarda, are deposited on TiO 2 film and radiated with 500 ΞΌW/cm 2 of ultraviolet A (UV-A, 360 nm). The bacteria viability is estimated using 2, 3, 5-triphenyl tetrazolium chloride (TTC) and inhibition efficiency calculated. The results show that bacteria inhibition efficiency in UV-A radiated TiO 2 film groups is significantly higher than that of UV-A radiated only groups. Regardless of fish pathogen species, inhibition efficiency of higher than 96% is found in the TiO 2 coated experimental groups that are exposed in 90 min of UV-A radiation. These results suggest that combined use of UV-A and TiO 2 can enhance bactericidal effects on fish pathogens in fish farm.
π SIMILAR VOLUMES
Powdered semiconductor TiO2 has a photocatalytic bactericidal capacity on some kinds of bacteria, but its mechanism still remains unclear. The mode of its photocatalytic bactericidal action on the mutans group of streptococci was investigated. Powdered TiO2 had a bactericidal capacity on all serotyp
## Abstract BACKGROUND: In recent decades, the increase in antibioticβresistant bacteria has become one of the most significant problems in public health. Titanium dioxide (TiO~2~) has the potential to inactivate antibioticβresistant bacteria. RESULTS: In this study, TiO~2~ that had been activated