| 不锈钢丝网上薄膜TiO2光催化剂的Raman光谱研究 |
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| 引用本文： | 朱永法,李巍.不锈钢丝网上薄膜TiO2光催化剂的Raman光谱研究[J].光谱学与光谱分析,2003,23(3):494-497. |
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| 作者姓名： | 朱永法 李巍 |
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| 作者单位： | 清华大学化学系,北京,100084 |
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| 基金项目： | 国家自然科学基金 (2 0 0 71 0 2 1 )，教育部优秀青年教师资助计划，北京大学国家重点实验室访问学者基金资助 |
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| 摘 要： | 用Raman光谱方法来研究用Sol Gel法负载于金属丝网的薄膜TiO2 光催化剂的物相结构、厚度以及粒径大小。研究结果显示 ,薄膜达到一定厚度能够阻止基底Fe元素向薄膜表层的扩散 ;在 4 0 0℃下灼烧制得的薄膜TiO2 光催化剂具有锐钛矿晶型 ,而高于 4 0 0℃时 ,将出现金红石相TiO2 ;锐钛矿晶型TiO2 的Raman特征峰产生偏移 ,表明薄膜粒径的变化 ,通过计算表明 ,薄膜TiO2 的粒径为 10nm左右 ,TEM的分析结果也与之一致。
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| 关 键 词： | TiO2 薄膜 光催化剂 Raman光谱 |
| 文章编号： | 1000-0593(2003)03-0494-04 |
| 修稿时间： | 2002年5月26日 |
Raman Spectrum Research on Structure and Performance of Nanometer TiO2 Film Photocatalyst Supported on Stainless Steel Netweb |
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| ZHU Yong-fa and LI Wei.Raman Spectrum Research on Structure and Performance of Nanometer TiO2 Film Photocatalyst Supported on Stainless Steel Netweb[J].Spectroscopy and Spectral Analysis,2003,23(3):494-497. |
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| Authors: | ZHU Yong-fa and LI Wei |
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| Institution: | Department of Chemistry, Tsinghua University, Beijing 100084, China. |
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| Abstract: | Crystal structure, particle size and thickness of film titania as photocatalyst on stainless steel netweb synthesized by sol-gel was studied by Raman spectroscopy. It was showed that diffusion of Fe in the base was banned when certain thickness of the film was obtained; when the film was calcined at 400 degrees C, it was anatase, and when the calcining temperature exceeded 400 degrees C, rutile came up in the film. The characteristic Raman peak of anatase shifted, which showed that the particle size of the film was changing, and from calculating, the size was about 10.7 nm. TEM result was consistent with it. |
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| Keywords: | Titania Film Photocatalyst Raman spectrum |
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