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无机材料学报

无机材料学报

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整体式堇青石载体上 TS-1的原位合成

宗丽, 刘莹, 辛峰   

  1. (天津大学化工学院, 天津 300072)
  • 收稿日期:2006-10-23 修回日期:2006-12-23 出版日期:2007-11-20 网络出版日期:2007-11-20

In situ Synthesis of Titanium Silicalite-1 on Monolithic Cordierite Support

ZONG Li, LIU Ying, XIN Feng   

  1. (School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China)
  • Received:2006-10-23 Revised:2006-12-23 Published:2007-11-20 Online:2007-11-20

PDF (PC)

1696

被引次数

24

摘要： 运用水热合成技术, 在通道密度为62cell/cm2的堇青石蜂窝陶瓷载体上, 原位合成了TS-1分子筛. 并用XRD、FT-IR和SEM等测试手段对其进行了表征. 在此基础上, 寻找出能降低模板剂和钛源用量的原料配比, 并简化了合成路线. 同时, 还讨论了原料中H2O和SiO2 的摩尔比以及晶化时间对TS-1负载状况的影响. 结果表明, 用37%盐酸处理6h后的堇青石蜂窝载体的内外表面上, 经过一次水热合成, 可牢固、均匀地生长出TS-1分子筛膜, 而相应的载体增重为10%~16%.

关键词: 体式堇青石载体, TS-1分子筛, 原位合成

Abstract: Titanium silicalite-1 molecular sieve (TS-1) was in situ synthesized on the surface of honeycomb-shaped cordierite support by a hydrothermal method. XRD, FT-IR and SEM were used to characterize the samples. The optimal process of preparing TS-1/cordierite including synthesized from cheaper preplursor was studied. Meanwhile, the effects of crystallization period and molar ratio of H2O and SiO2 in their mother solution on the growth of TS-1 on monolithic cordierite support were also researched experimentally. The results show that a coating of TS-1 crystals grows successfully on the surface of monolithic cordierite support pretreated with 37% hydrochloric acid for 6h, and the weight of the cordierite is increased by 10%--16%.

Key words: monolithic cordierite support, titanium silicalite-1 molecular sieve, in-situ synthesis

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