| 铕掺杂TiO2粉末的制备及其可见光光催化性能研究 |
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| 作者姓名： | 邢宝岩 焦晨旭 赵建国 |
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| 作者单位： | 中北大学化学系,山西 太原,030051;中北大学化学系,山西 太原,030051;中北大学化学系,山西 太原,030051 |
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| 基金项目： | 国家自然科学基金资助项目(51072105)；山西省高等学校中青年拔尖创新人才支持计划资助项目；教育部新世纪优秀人才支持计划资助项目(NCET-11-1033)；山西省基础研究计划资助项目(2011011023-2)；中国博士后科学基金特别资助项目(201104321). |
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| 摘 要： | 以钛酸四正丁酯为原料,采用水热法制备铕掺杂TiO2粉末,对铕掺杂TiO2粉末的可见光光催化性能进行研究,并通过XRD、SEM分析对其进行表征。结果表明,铕掺杂TiO2粉末没有改变晶相结构,铕掺杂后使TiO2粉末由不规则形状转变为实心球状,且提高了TiO2粉末的光催化性能。模拟太阳光实验发现,铕掺杂TiO2粉末可明显提高其可见光光催化的降解能力,当辐照度为500W/m2、时间为240min时,其降解率达到78%。
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| 关 键 词： | 水热法 TiO2 铕掺杂 可见光 光催化性能 |
| 收稿时间： | 2013/1/18 0:00:00 |
Preparation and visible light photocatalytic property of europium-doped titanium dioxide powders |
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| Authors: | Xing Baoyan Jiao Chenxu and Zhao Jianguo |
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| Institution: | Chemistry Department, North University of China, Taiyuan 030051, China;Chemistry Department, North University of China, Taiyuan 030051, China;Institute of Carbon Materials, Shanxi Datong University, Datong 037009, China |
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| Abstract: | Pure and different content europium-doped TiO2powders were prepared from Ti(OBu)4by hydrothermal method, and their photocatalytic activity were investigated and characterized by X-ray diffraction and scanning electron microscope. The results show that there is no change in the crystalline structure of TiO2powders after europium doping, and europium doping changes the morphology of TiO2powders from irregular shape into solid sphere. Europium doping improves the photocatalytic activity of TiO2powders. Simulated sunlight experiments show that europium doping can remarkably improve the visible light photocatalytic degradation of TiO2powders, and when the irradiation is 500W/m2and the time is 240min, the photocatalytic degradation rate of TiO2powders measures up to 78%. |
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| Keywords: | hydrothermal method TiO2 europium doping visible light photocatalytic activity |
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