Study on the Catalytic Properties of TS-1 Molecular Sieves Synthe-sized under Microwave Irradiation

Acta Chimica Sinica ›› 2006, Vol. 64 ›› Issue (14): 1411-1415. Next Articles

Original Articles

微波合成TS-1分子筛的催化性能研究

杨迎春*^,1,2，李鹤²，何登华²，王喻²,3，徐成华*^,1,2，邱发礼²，叶芝祥¹

(¹成都信息工程学院环境工程系成都 610041)
(²中国科学院成都有机化学研究所成都 610041)
(³四川建筑职业技术学院德阳 618000)

投稿日期:2005-11-27 修回日期:2006-03-16 发布日期:2006-07-28
通讯作者: 杨迎春

Study on the Catalytic Properties of TS-1 Molecular Sieves Synthe-sized under Microwave Irradiation

YANG Ying-Chun*^,1,2, LI He², HE Deng-Hua², WANG Yu^b,3, XU Cheng-Hua*^,1,2, QIU Fa-Li², YE Zhi-Xiang¹

(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)

Received:2005-11-27 Revised:2006-03-16 Published:2006-07-28
Contact: YANG Ying-Chun

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 molecular 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 surface silanol groups between TS-1 particles. The higher hydrophobicity of TS1-MI can increase the adsorption capacity leading to a higher catalytic activity.

Key words: microwave irradiation, TS-1 molecular sieves, styrene, 1-hexene, epoxidation, hydrophobicity

Cite this article

YANG Ying-Chun*^,1,2, LI He², HE Deng-Hua², WANG Yu^b,3, XU Cheng-Hua*^,1,2, QIU Fa-Li², 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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微波合成TS-1分子筛的催化性能研究

Study on the Catalytic Properties of TS-1 Molecular Sieves Synthe-sized under Microwave Irradiation

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