| CeO2掺杂TiO2粉体的制备及其性能研究 |
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| 引用本文： | 段志刚,朱忠其,纳薇,张瑾,柳清菊.CeO2掺杂TiO2粉体的制备及其性能研究[J].材料导报,2006,20(Z1):94-96. |
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| 作者姓名： | 段志刚 朱忠其 纳薇 张瑾 柳清菊 |
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| 作者单位： | 云南大学材料科学与工程系,昆明,650091 |
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| 基金项目： | 教育部科学技术研究项目，教育部跨世纪优秀人才培养计划，云南省自然科学基金 |
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| 摘 要： | 采用Sol-gel法制备了CeO2不同掺杂比例的TiO2粉体,研究了掺杂比例对样品晶型、光谱吸收曲线及光催化降解亚甲基蓝的影响,结果表明:掺杂CeO2的TiO2样品对光波长的响应阈值为500nm左右;样品在普通日光灯下照射4h,对亚甲基蓝的降解率明显优于Degause P25,其中CeO2掺杂比率为7%(mol)的样品降解率达到了最大.
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| 关 键 词： | 可见光催化 掺杂 降解亚甲基蓝 |
Preparation and Properties of CeO2-doped TiO2 Powder |
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| DUAN Zhigang,ZHU Zhongqi,NA Wei,ZHANG Jin,LIU Qingju.Preparation and Properties of CeO2-doped TiO2 Powder[J].Materials Review,2006,20(Z1):94-96. |
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| Authors: | DUAN Zhigang ZHU Zhongqi NA Wei ZHANG Jin LIU Qingju |
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| Abstract: | TiO_2 powders doping with different content of CeO_2 are prepared by Sol-gel method. The effects of doping proportion on the crystal structure, absorption spectrum and photocatalytic degradation of methylene are studied.The results indicate that the absorbing wavelength threshold value of TiO_2 samples doping with different CeO_2 content is about 500nm. The rate of degradation of methylene of the sample is higher than that of Degause P25 after 4h irradiation by fluorescent lamp.The optimal content of CeO_2 is 7%(mol). |
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| Keywords: | CeO2 TiO2 |
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