Journal of Porous Materials

, Volume 15, Issue 3, pp 295–301 | Cite as

Synthesis of EMT-rich faujasite in the presence of organic template of low-cost polyquaternium-6

  • Shuzhen Liu
  • Liansheng Li
  • Caijin Li
  • Xiaoyun Xiong
  • Feng-Shou Xiao


EMT-rich faujasite zeolite has been successfully synthesized from an organic template of low-cost polyquaternium-6 in the absence of crown ether (18-crown-6). Additionally, low-cost water glass is used as a silica source taking the place of silica sol generally used in the conventional synthesis of EMT zeolite. X-ray diffraction (XRD) patterns show that the samples exhibit obvious peaks associated with EMT structure in addition to the peaks assigned to Y zeolite, indicating the presence of EMT and Y phase, and the purity of EMT zeolite reaches 70–80%. Scanning electron micrographs (SEM) show that partial crystals of the sample are typically hexagonal symmetry, confirming the presence of zeolite EMT crystals. Thermogravimetric and differential thermal analysis (TG-DTA) show that there are obvious peaks associated with combustion of organic template, suggesting that polyquaternium-6 plays an important role for the formation of zeolite EMT phase. Furthermore, temperature programmed desorption of ammonia (NH3-TPD) shows that the acidic amount of EMT-rich faujasite is slightly more than that of Y zeolite, and catalytic cracking of cumene shows that EMT-rich faujasite has higher activity than zeolite Y.


EMT zeolite Faujasite Low-cost organic template Polyquaternium-6 Water glass 


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We are grateful to the financial support of the State Basic Research Project of China (2004CB217804 and 2003CB615802) and NSFC (Grant no. 20573044, 20373018, and 20233030).


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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  • Shuzhen Liu
    • 1
  • Liansheng Li
    • 1
  • Caijin Li
    • 1
  • Xiaoyun Xiong
    • 1
  • Feng-Shou Xiao
    • 1
  1. 1.State Key Laboratory of Inorganic Synthesis and Preparative Chemistry & College of ChemistryJilin UniversityChangchunP. R. China

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