| 铕掺杂纳米二氧化钛光催化实验研究 |
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| 引用本文： | 王彦,苏会东.铕掺杂纳米二氧化钛光催化实验研究[J].环境保护科学,2005,31(3):31-33. |
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| 作者姓名： | 王彦 苏会东 |
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| 作者单位： | 沈阳理工大学,沈阳,110168;沈阳理工大学,沈阳,110168;东北大学,沈阳,110004 |
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| 摘 要： | 以钛酸丁酯为原料,乙醇为溶剂,硝酸为抑制剂。采用溶胶凝胶法制备纳米粒子TiO2,用30w的紫外光灯模拟光源,溴甲酚紫模拟水中难降解的有机污染物,采用稀土铕掺杂的方法来提高TiO2的活性。XRD研究结果表明,稀土铕掺杂TiO2没有改变纳米TiO2的晶相结构;光催化结果表明,稀土铕掺杂的确能较明显的提高TiO2的光催化降解能力。90min内达到降解率由80%提高到98%以上。
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| 关 键 词： | 二氧化钛 铕掺杂 光催化降解 |
Photocatalytic Activity of a Europium Doped Nanometer Titanium Dioxide |
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| Abstract: | The nanoparticle TiO 2 powders doped with europium were prepared from (TiOC 4H 9) 4 alcohol and Eu(NO 3) 3 by sol-gel processing.The photocatalytic activity of the catalysis were tested with Bromocresol purple(C 21 H 16 Br 2O 5S) as objective decomposition substance.Microstructure of ceramic coatings were characterized by XRD respectively.The results show that:The titanium oxide is mainly made from anatase.It was found that the photocatalytic activity of TiO 2 was enhanced after Eu(NO 3) 3 doped.The photocatalysis rate increased from 80% to 98%. |
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| Keywords: | Titanium Dioxide Europium Doping Photocatalysis |
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