Structure and Antibacterial Properties of Ag-Doped TiO2 Porous Materials

Abstract:

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Antibacterial Ag-doped TiO2 porous monolithics were firstly prepared by hybridization of polyethylene glycol, Ti(OC4H9)4 and AgNO3 via sol-gel method following by heat-treatment to remove the organic components. Thermogravimeter−differential thermal analysis, pore structure, infrared spectra, ultraviolet−visible spectra, release speed of silver ions into 30°C water and antibacterial properties of Ag-doped TiO2 samples made at different temperature were studied. The results showed that anatase phase and uniform pore structure can be formed after heated at 500°C. Ag+ ions from the samples heated at 500°C were stably released into water at 30°C up to 14 days. The material treated at 500°C has the best antibacterial property and can restrain Escherichia coli effectively.

Info:

Periodical:

Key Engineering Materials (Volumes 330-332)

Main Theme:

Edited by:

Xingdong Zhang, Xudong Li, Hongsong Fan, Xuanyong Liu

Pages:

995-998

DOI:

10.4028/www.scientific.net/KEM.330-332.995

Citation:

H. R. Liu et al., "Structure and Antibacterial Properties of Ag-Doped TiO2 Porous Materials", Key Engineering Materials, Vols. 330-332, pp. 995-998, 2007

Online since:

February 2007

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Price:

$35.00

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