Chem. J. Chinese Universities ›› 1988, Vol. 9 ›› Issue (5): 508.

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Infrared Studies of the Frameworks on ZSM-5 and ZSM-11 Zeolites with Different Ratios of Si/Al

Xu Qinhua, Yu Qiuming   

  1. Department of Chemistry, Nangjing University, Nangjing
  • Received:1986-12-15 Online:1988-05-24 Published:1988-05-24

Abstract: The frameworks on ZSM-5 and ZSM-11 zeolites with different ratios of Si/Al were studied by means of IRmethod. The internal tetrahedral asymmetrical stretch vibration frequencies of ZSM-5 and ZSM-ll increased linearly with the increasing of SiO2/Al2O3 ratios. SiO2/Al2O3 ratios obtained by IRmethod rather agreed with those obtained by chemical analytic method.

Key words: Zeolites, ZSM-5, ZSM-11, Frame work vibration, IR spectrum

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