| 微波合成TS-1分子筛的催化性能研究 |
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| 引用本文： | 杨迎春,李鹤,何登华,王喻,徐成华,邱发礼,叶芝祥. 微波合成TS-1分子筛的催化性能研究[J]. 化学学报, 2006, 64(14): 1411-1415 |
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| 作者姓名： | 杨迎春 李鹤 何登华 王喻 徐成华 邱发礼 叶芝祥 |
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| 作者单位： | 成都信息工程学院环境工程系,成都,610041;中国科学院成都有机化学研究所,成都,610041;中国科学院成都有机化学研究所,成都,610041;中国科学院成都有机化学研究所,成都,610041;四川建筑职业技术学院,德阳,618000;成都信息工程学院环境工程系,成都,610041 |
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| 基金项目： | 四川省科技厅资助项目;成都信息工程学院校科研和教改项目 |
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| 摘 要： | 采用微波加热技术法合成TS-1分子筛, 以30%的H2O2水溶液为氧化剂, 考察了所合成的TS-1分子筛在苯乙烯和1-己烯环氧化反应中的催化性能, 并与传统水热法合成的TS-1进行了比较. 结果表明, 由微波合成TS-1的催化性能比传统水热法合成的TS-1更为优异. 采用XRD, FT-IR, UV-vis, SEM等手段对二者进行表征, 发现微波合成的TS-1晶粒与晶粒之间存在“粘连”现象, 这种现象降低了分子筛表面硅羟基含量, 增加了TS-1分子筛的疏水性, 使得分子筛对反应底物苯乙烯和1-己烯的吸附能力增强, 从而导致催化性能显著提高.
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| 关 键 词： | 微波辐射 TS-1 苯乙烯 1-己烯 环氧化 疏水性 |
| 收稿时间： | 2005-11-27 |
| 修稿时间： | 2005-11-272006-03-16 |
Study on the Catalytic Properties of TS-1 Molecular Sieves Synthe-sized under Microwave Irradiation |
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| YANG,Ying-Chun,LI,He,HE,Deng-Hua,WANG,Yu,XU,Cheng-Hua,QIU,Fa-Li,YE,Zhi-Xiang. Study on the Catalytic Properties of TS-1 Molecular Sieves Synthe-sized under Microwave Irradiation[J]. Acta Chimica Sinica, 2006, 64(14): 1411-1415 |
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| Authors: | YANG Ying-Chun LI He HE Deng-Hua WANG Yu XU Cheng-Hua QIU Fa-Li YE Zhi-Xiang |
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| Affiliation: | (1 Department of Environmental Engineering, Chengdu University of Information Technology, Chengdu 610041)(2 Chengdu Institute of Organic Chemistry, Chinese Academy of Sci-ences, Chengdu 610041)(3 Sichuan College of Architecture Professional Technology, Deyang 618000) |
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| Abstract: | Titanium silicate-1 (TS-1) was synthesized under microwave irradiation. Their catalytic property was investigated by the epoxidations of styrene and 1-hexene with 30% H2O2 as oxidant, which is better than that of TS-1 synthesized by conventional hydrothermal methods. Characterization of two kinds of TS-1 were carried out by technologies such as XRD, IR, UV-vis and SEM, etc. The crystal particles of TS-1 mo- lecular sieve from microwave irradiation (TS1-MI) were found to exhibit an adhered columnar morphology and less silanol groups than those from the conventional method (TS1-CM). The better catalytic properties of TS1-MI were deduced to be due to its higher hydrophobicity, which comes from the consumption of sur- face silanol groups between TS-1 particles. The higher hydrophobicity of TS1-MI can increase the adsorp- tion capacity leading to a higher catalytic activity. |
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| Keywords: | microwave irradiation TS-1 molecular sieves styrene 1-hexene epoxidation hydrophobicity |
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