均相沉积法制备金属基纳米TiO_2膜的杀菌性能  

Preparation and Application of the Nanocrystalline TiO_2 Coating on Stainless Steel

作　　者：余历军[1,2] 朱晓东[1] 胡奈赛[1] 何家文[1] 张秀成[3] 

机构地区：[1]西安交通大学金属材料强度国家重点实验室 [2]西北大学化学工程学院,陕西西安710069 [3]西北大学化学工程学院

出　　处：《机械工程材料》2005年第4期38-40,共3页Materials For Mechanical Engineering

摘　　要：采用均相沉积法在不锈钢表面制得均匀透明的多孔TiO2纳米膜材料。用TEM、XRD、TG-DTA、GB15979-2002等方法对膜及杀菌性能进行了研究。结果表明:膜材料为均匀的多孔锐钛矿型TiO2膜;TiO2晶粒大小在10-30nm;该膜对大肠杆菌、白色念珠菌、金黄色葡萄球菌在30min内的杀菌率均达到90.00%以上。Uniform transparent and porous TiO2 coatings on the surface of stainless steel were prepared by the homogenous precipitation method. The coating's structure, composition, grain size and bactericidal capability were studied by means of TEM, XRD, TG-DTA and China national standard GB 15979 - 2002 for disposable sanitary products. The results showed that the coating was a kind of material composed of uniform and porous TiO2 nanocrystalline, the grain size was between 10-30 nm, and it had a high bactericidal capability, its bactericidal percentage to escherichia colt, candidn albicans and staphylococcus aureus was over 90. 00% within 30 min.

关 键 词：均相沉积法 不锈钢 纳米TIO2膜 杀菌性能 

分 类 号：TB383[一般工业技术—材料科学与工程] O643[理学—物理化学]