| 磁性纳米固体酸SO42--TiO2-Fe3O4催化剂的合成、表征及催化性能的研究 |
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| 引用本文： | 邵艳秋,尹泳一,陈健伟.磁性纳米固体酸SO42--TiO2-Fe3O4催化剂的合成、表征及催化性能的研究[J].分子科学学报,2007,23(4). |
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| 作者姓名： | 邵艳秋 尹泳一 陈健伟 |
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| 作者单位： | 牡丹江师范学院化学系,黑龙江,牡丹江,157012 |
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| 基金项目： | 黑龙江省教育厅科学技术研究资助项目(29734130) |
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| 摘 要： | 首先研究制备了Fe3O4和SO42--TiO2固体酸催化剂,在此基础上采用共沉淀和浸渍的方法制备了磁性和超细SO42--TiO2-Fe3O4固体酸催化剂。利用XRD,TEM和FT-IR等分析测试手段对催化剂的结构和性能进行了表征。测定结果证实该催化剂具有较小的粒度,较高的磁性表现。在乙酸丁酯合成反应中SO42--TiO2-Fe3O4展示了很高的催化活性(酯化率可达82.7%),而且利用Fe3O4的磁性可对催化剂进行分离和回收.
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| 关 键 词： | 磁性 纳米 固体酸 催化剂 |
Synthesis, characterization and catalytic performance of magnetic nanosolid acid catalyst SO42--TiO2-Fe3O4 |
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| SHAO Yan-qiu,YIN Yong-yi,CHEN Jian-wei.Synthesis, characterization and catalytic performance of magnetic nanosolid acid catalyst SO42--TiO2-Fe3O4[J].Journal of Molecular Science,2007,23(4). |
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| Authors: | SHAO Yan-qiu YIN Yong-yi CHEN Jian-wei |
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| Abstract: | Nano-size particles of Fe3O4 with strong magnetism and the solid acid catalyst SO42--TiO2 were prepared in order to prepare magnetic and hyperfine catalyst SO42--TiO2-Fe3O4 by the method of dipping and co-precipitation.The catalyst was characterized by techniques such as XRD,TEM,and FT-IR.When they were all used in esterification reaction,they showed higher catalytic activities,the highest percent conversion is 82.7%.The new catalysts can be easily separated from the reaction system by magnetism. |
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| Keywords: | magnetism nano-size solid acid catalyst |
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