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Citation: DING Shi-Wen, ZHANG Yong-Fen, YANG Run-Lei. Preparation of Mix-crystal TiO₂ Nano Emulsion and Its Antibacterial Properties Under Fluorescent Lamp[J]. Chinese Journal of Applied Chemistry, ;2007, 24(12): 1401-1404. shu

Preparation of Mix-crystal TiO₂ Nano Emulsion and Its Antibacterial Properties Under Fluorescent Lamp

1.
a College of Chemistry and Environmental Science;
2.
b College of Life Science, Hebei University, Baoding 071002

Corresponding author: DING Shi-Wen,
Received Date: 9 January 2007
Available Online: 30 May 2007
Fund Project: 河北省自然科学基金重点资助课题(B2005000097) (B2005000097)

With TiCl₄,ammonia and surfactant as the raw material,the dispersion emulsion of mix-crystal nanometric TiO₂ was obtained by 2-step hydrolyzation method under constant pressure.Morphologies,compositions and structures of the samples were characterized.The results show that the dispersity of emulsion is good and the average diameter of particles is about 15 nm.Its bactericidal properties to some bacteria and epiphytes are strong under daylight lamp irradiation.The killing rate to Gram negative bacterium(Staphylo-coccus aureus and Bacillus subtilis) is 100%,in addition,killing activity of it to Gram positive bacterium(Escherichia coli) is very high.It has a clear antibacterial circle of about 20 mm in diameter toward epiphytes such as Aspergillus niger,Aspergillus flavus and Candida albicans etc.
- mix-crystal,
- nanosized TiO₂ emulsion,
- antibacteria activity,
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Preparation of Mix-crystal TiO2 Nano Emulsion and Its Antibacterial Properties Under Fluorescent Lamp

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通讯作者: 陈斌, bchen63@163.com

Preparation of Mix-crystal TiO₂ Nano Emulsion and Its Antibacterial Properties Under Fluorescent Lamp