| SiO_2-TiO_2光催化薄膜的制备及其晶化过程的研究 | |
| 周锋 ; 梁开明 ; ZHOU Feng ; LIANG Kai-ming | |
| 2010-06-10 ; 2010-06-10 | |
| 关键词 | 溶胶-凝胶法 光催化活性 晶化 薄膜 sol-gel photo-catalytic activity crystallization thin films O484.1 |
| 其他题名 | Preparation and crystallization behavior of SiO_2-TiO_2 photo-catalytic films |
| 中文摘要 | 利用溶胶-凝胶法在石英玻璃表面制备出一层折射率可调的SiO2-TiO2光催化薄膜。采用X射线衍射分析、扫描电镜及氮气吸附实验等测试手段,研究了利用溶胶-凝胶法制备SiO2掺杂的TiO2薄膜的相变行为。提出了通过加入SiO2的比例超过10%时,在TiO2内部形成高度分散的SiO2网络,抑制TiO2晶粒的生长以及晶型转变,增加薄膜材料的热稳定性的方法。通过甲基橙水溶液的光催化降解实验表明:当SiO2的掺杂比例为10%,经过500℃以上的热处理后,所获得的SiO2-TiO2复合薄膜具有最大的光催化活性。; The SiO_2-TiO_2 thin films were prepared by sol-gel dip coating.The crystallization of the films was thoroughly studied by X-ray diffraction(XRD),Scanning electron microscope(SEM) and the nitrogen adsorption experiment.Furthermore the phase formation,microstructure and photo-catalytic activity of SiO_2-TiO_2 films heat treated at different temperatures were studied.It is found that with the addition of above 10% SiO_2,the phase transformation temperature of anatase to rutile increase.Studies on photo-catalytic degradation of methye orange show that when 10% SiO_2 is added to the TiO_2 sol-gel system at tempcrature heat theated above 500℃,the photo-catalytic activity of SiO_2-TiO_2 thin films is optimized.; 国家自然科学基金资助项目(No.50472007) |
| 语种 | 中文 ; 中文 |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/61397]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | 周锋,梁开明,ZHOU Feng,等. SiO_2-TiO_2光催化薄膜的制备及其晶化过程的研究[J],2010, 2010. |
| APA | 周锋,梁开明,ZHOU Feng,&LIANG Kai-ming.(2010).SiO_2-TiO_2光催化薄膜的制备及其晶化过程的研究.. |
| MLA | 周锋,et al."SiO_2-TiO_2光催化薄膜的制备及其晶化过程的研究".(2010). |
| 个性服务 |
| 查看访问统计 |
| 相关权益政策 |
| 暂无数据 |
| 收藏/分享 |
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
修改评论