文献类型：会议论文

英文题名：Structure and antibacterial properties of Ag-doped TiO₂ porous materials

作者：Liu, Hai-rong[1];Lin, Yi[1];Ye, Rei-fang[2];Song, Li[1];Chen, Qi[1]

机构：[1]East China Univ Sci & Technol, Dept Inorgan Mat, Shanghai, Peoples R China;[2]E China Univ Sci & Technol, Dept Microbiol, Shanghai 200237, Peoples R China

会议论文集：19th International Symposium on Ceramics in Medicine

会议日期：OCT 10-13, 2006

会议地点：Chengdu, PEOPLES R CHINA

语种：英文

外文关键词：sol-gel process; Ag-doped TiO2; antibacterial property

摘要：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 degrees 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 degrees C. Ag+ ions from the samples heated at 500 degrees C were stably released into water at 30 degrees C up to 14 days. The material treated at 500 degrees C has the best antibacterial property and can restrain Escherichia coli effectively.