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| 紫外辐照纳米尺度TiO2薄膜亲水性转变的机理 | |
| 引用本文： | 宗祥福,王峰,翁渝民,章壮健,朱永强,姚文华.紫外辐照纳米尺度TiO2薄膜亲水性转变的机理[J].复旦学报(自然科学版),2002,41(2):208-211. |
| 作者姓名： | 宗祥福 王峰 翁渝民 章壮健 朱永强 姚文华 |
| 作者单位： | 1. 复旦大学材料科学系,上海,200433 2. 复旦大学物理系,上海,200433 3. 复旦大学测试中心,上海200433 |
| 摘 要： | 用喇曼散射光谱、扫描隧道显微学（STM）和接触角等分析方法研究了纳米尺度TiO2薄膜经365nm波长紫外辐照后的疏水－亲水转变机理。实验中观察到氧空位和OH基团的喇曼峰。用STM进行薄膜结构分析，观察到TiO2表面金红石相到锐钛矿相的结构转变。研究结果表明，纳米尺度TiO2薄膜的光致亲水性强烈地依赖于其独特的表面微结构的变化。 |
| 关 键 词： | 紫外辐照 纳米尺度 TiO2薄膜 亲水性 二氧化钛 |
| 文章编号： | 0427-7104(2002)02-0208-04 |
The Mechanism of Hydrophilic Conversion on UV-light Treated Nanosized TiO2 Film |
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| ZONG Xiang fu ,WANG Feng ,WENG Yu min ,ZHANG Zhuang jian ,ZHU Yong qiang ,YAO Wen hua.The Mechanism of Hydrophilic Conversion on UV-light Treated Nanosized TiO2 Film[J].Journal of Fudan University(Natural Science),2002,41(2):208-211. | |
| Authors: | ZONG Xiang fu WANG Feng WENG Yu min ZHANG Zhuang jian ZHU Yong qiang YAO Wen hua |
| Institution: | ZONG Xiang fu 1,WANG Feng 1,WENG Yu min 1,ZHANG Zhuang jian 1,ZHU Yong qiang 2,YAO Wen hua 3 |
| Abstract: | The mechanism of hydrophobic/hydrophilic conversion of ultraviolet light(365 nm) treated nanosized TiO 2 film was studied using Raman spectroscopy,scanning tunneling microscopy (STM) and measurement of water contact angle.The Raman peaks for oxygen vacancy and OH stretching mode were observed.And as analyzed with STM,the microstructure of the surface was also found to transform form rutile to anatase phase.The results revealed that photoinduced hydrophilicity of nanosized TiO 2 film depends strongly on the change of its peculiar microstructure of the surface. |
| Keywords: | TiO 2 hydrophilic microstructure |
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