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TiO2基纳米复合抗菌剂研究
Study on the TiO2-based nanocomposite antibacterial agent
【摘要】 以Ti(SO4)2和AgNO3为主要原料,用沉淀法制备了以TiO2为基质的纳米复合抗菌剂。用振荡烧瓶试验法检测了抗菌剂的抗菌性能,结果表明该抗菌剂质量浓度100mg/L、振荡接触60min,对大肠杆菌、金黄色葡萄球菌和白色念珠菌的抑杀率均可达99%以上。还初步探讨了纳米抗菌剂光催化氧化和接触反应的抗菌机理。
【Abstract】 Using Ti （SO4）2 and AgNO3 as materials, TiO2-based nanocomposite antibacterial agent was prepared through the precipitation method. The antibacterial performance tested by Shake Flask Test shows that the antibacterial agent has over 99% germ-killing efficiency for Escherichia coil, Staphylococus aureus and Candida albicans when the antibacterial mass concentration is 100 mg/L and the contact time is 60 min. In addition, the antibacterial mechanism of the nancomposite, including light-catalysed oxidation and contact reaction, was discussed.
【关键词】 纳米材料；
TiO2基粉体；
无机抗菌剂；
【Key words】 nanoscale material； TiO2-based composite powder； inorganic antibacterial agent；
【Key words】 nanoscale material； TiO2-based composite powder； inorganic antibacterial agent；
【基金】 陕西省科技攻关项目(2000K 12 G);西安市科技攻关项目(GG9933)
- 【文献出处】 化学工程 ,Chemical Engineering(China) , 编辑部邮箱 ,2004年04期
- 【分类号】TQ455
- 【被引频次】11
- 【下载频次】179