| TbFeO_3纳米晶的制备及其光催化活性 |
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| 引用本文： | 刘清玲,岳小欣.TbFeO_3纳米晶的制备及其光催化活性[J].新乡师范高等专科学校学报,2006,20(5):36-38. |
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| 作者姓名： | 刘清玲 岳小欣 |
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| 作者单位： | 1. 新乡师范高等专科学校,河南,新乡,453003
2. 河南职工医学院,化学教研室,河南,郑州,450003 |
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| 基金项目： | 河南省教育厅自然科学基金 |
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| 摘 要： | 以Tb4O7、Fe(NO3)3.9H2O、硝酸(1:1)为原料,在柠檬酸体系中用溶胶凝胶法合成了具有钙钛矿结构的稀土复合氧化物TbFeO3;用XRD、TEM对产物的组成、颗粒、大小、形貌进行了表征;结果表明,产物为纳米颗粒,平均粒径为21 nm左右,且颗粒均匀。另外以TbFeO3为光催化剂,对多种水溶性染料进行了光催化降解,发现TbFeO3有较好的光催化效果。实验表明,在无光照条件下,TbFeO3的脱色效果初期较明显,但效果达到一定程度后不再明显,并且随时间的推移,甚至有所下降。在光照条件下,TbFeO3的脱色效果初期短时间内就特别明显,最后接近100%.
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| 关 键 词： | 铁酸铽 纳米晶 钙钛矿结构 光催化活性 |
| 文章编号： | 1008-7613（2006）05-0036-03 |
| 收稿时间： | 2006-06-22 |
| 修稿时间： | 2006年6月22日 |
Preparation and Photo Catalytic Activity of NanocrystallineTbFeO3 |
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| LIU Qing-ling,YUE Xiao-xin.Preparation and Photo Catalytic Activity of NanocrystallineTbFeO3[J].Journal of Xinxiang Teachers College,2006,20(5):36-38. |
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| Authors: | LIU Qing-ling YUE Xiao-xin |
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| Abstract: | Nanocrystalline material of rare-earth composite oxide TbFeO_3 was prepared by using citrate method.This sample was characterized by XRD and TEM.The crystal strusture is of perovskite-type and its mean grain size is about 21nm.The photocatalytic oxidation of this material was studied by the decoloration of various soluble dyes.The results showed that nanosized TbFeO3 exhibits a high photocatalytic activity. |
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| Keywords: | Terbbium Iron Oxide nanocrystalline perovskite-type photocatalytic activity |
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