| 掺杂Ce4+对溶胶-凝胶法制备二氧化钛薄膜的结构和光催化特性的影响 |
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| 引用本文： | 张璐,谢键,李国强,张洪良.掺杂Ce4+对溶胶-凝胶法制备二氧化钛薄膜的结构和光催化特性的影响[J].半导体光电,2013,34(1):98-102. |
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| 作者姓名： | 张璐 谢键 李国强 张洪良 |
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| 作者单位： | 1. 华南理工大学材料科学与工程学院,发光材料与器件国家重点实验室,广州510640
2. 牛津大学化学系,英国牛津OX1 3PH |
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| 基金项目： | 国家自然科学基金项目(X2cl B5100940);中央高校基本科研业务费项目(X2clD210 215w) |
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| 摘 要： | 采用溶胶-凝胶浸渍提拉法分别在氧化硅和石英衬底上制备了Ce4+掺杂的二氧化钛(TiO2)薄膜,在800℃的退火温度下保温30 min.采用X射线衍射仪(XRD)、扫描电镜(SEM)及紫外-可见分光光度计,对TiO2薄膜的结构和光催化性能进行了详细分析,并且进行了对甲基橙的降解实验.研究结果表明:掺杂后的薄膜由锐钛矿向金红石的相转变温度升高.随着掺杂浓度的升高,薄膜经历了由颗粒粒度分明转变到薄膜形成好、未出现明显颗粒的过程,且Ce4+掺杂摩尔百分数为10％的薄膜形成较好.随着Ce4+掺杂浓度升高,TiO2薄膜的光吸收峰先红移再蓝移,紫外区吸收范围先增大后降低.掺杂后薄膜对甲基橙降解率均得到提高,而掺杂10％降解率最大.
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| 关 键 词： | 溶胶-凝胶 二氧化钛 铈掺杂 光催化 降解率 |
| 收稿时间： | 2012/7/13 0:00:00 |
Effect of Ce4+-doping on Structural and Photocatalytic Properties of Sol-gel Prepared Titanium Dioxide Thin-Films |
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| ZHANG Lu,XIE Jian,LI Guoqiang and ZHANG Hongliang.Effect of Ce4+-doping on Structural and Photocatalytic Properties of Sol-gel Prepared Titanium Dioxide Thin-Films[J].Semiconductor Optoelectronics,2013,34(1):98-102. |
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| Authors: | ZHANG Lu XIE Jian LI Guoqiang and ZHANG Hongliang |
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| Affiliation: | 1.State Key Laboratory of Luminescent Materials and Devices,School of Materials Science and Engineering, South China University of Technology,Guangzhou 510640,CHN;2.Department of Chemistry, University of Oxford,Oxford OX1 3PH,UK;1.State Key Laboratory of Luminescent Materials and Devices,School of Materials Science and Engineering, South China University of Technology,Guangzhou 510640,CHN;2.Department of Chemistry, University of Oxford,Oxford OX1 3PH,UK;1.State Key Laboratory of Luminescent Materials and Devices,School of Materials Science and Engineering, South China University of Technology,Guangzhou 510640,CHN;2.Department of Chemistry, University of Oxford,Oxford OX1 3PH,UK;1.State Key Laboratory of Luminescent Materials and Devices,School of Materials Science and Engineering, South China University of Technology,Guangzhou 510640,CHN;2.Department of Chemistry, University of Oxford,Oxford OX1 3PH,UK |
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| Abstract: | |
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| Keywords: | sol-gel Titanium dioxide Ce-doped degradation ratio photocatalyst |
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