Preparation and properties of antibacterial TiO2@C/Ag core-shell composite

被引：18
|
作者：
Tan, San-Xiang [1 ]
Tan, Shao-Zao [1 ]
Chen, Jing-Xing [1 ]
Liu, Ying-Liang [1 ,2 ]
Yuan, Ding-Sheng [1 ,2 ]
机构：
[1] Jinan Univ, Dept Chem, Guangzhou 51063, Guangdong, Peoples R China
[2] Jinan Univ, Inst Nanochem, Guangzhou 510632, Guangdong, Peoples R China
来源：
SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS | 2009年 / 10卷 / 04期
基金：
中国国家自然科学基金;
关键词：
hydrothermal method; core-shell structure; TiO2@C; antibacterial activity; ANATASE-TYPE TIO2; CARBON; SILVER; NANOPARTICLES; ADSORPTION; NANOCOMPOSITES; OXIDATION;
D O I：
10.1088/1468-6996/10/4/045002
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
An environment-friendly hydrothermal method was used to prepare TiO2@C core-shell composite using TiO2 as core and sucrose as carbon source. TiO2@C served as a support for the immobilization of Ag by impregnation in silver nitrate aqueous solution. The chemical structures and morphologies of TiO2@C and TiO2@C/Ag composite were characterized by x-ray diffraction, transmission electron microscopy, Fourier transform infrared spectroscopy, energy dispersive x-ray spectroscopy and Brunauer-Emmett-Teller (BET) analysis. The antibacterial properties of the TiO2@C/Ag core-shell composite against Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) were examined by the viable cell counting method. The results indicate that silver supported on the surface of TiO2@C shows excellent antibacterial activity.
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页数：6
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