The Interaction Between Siliceous FAU Zeolites and Adsorptive Methylamine

Abstract

Abstract: The interaction between the adsorbed methylamine(MA) and siliceous FAUzeolite with a perfect framework is investigated with XRD, ²⁹Si and ¹³C MAS NMRand FTIR. As methylamine is loaded into the zeolite, the crystal structure of the zeolite changes. One peak splits to four peaks for the ²⁹Si MAS NMRspectrum, and the IRvibration of framework with a high resolution become simpler. The fact indicates that there is a strong interaction between adsorbed methylamine and Si—Oframework of FAUzeolite, leading to high A Tvalue of affinity index for methylamine on the zeolite. The order structure of MA/FAUassociate is discussed as well.

Key words: FAU zeolite, Methylamine, High silica, Adsorption, Interaction

CLC Number:

O614

TrendMD:

LONG Ying-Cai, YANG Hu, SUN Yao-Jun, PING Zheng-Hua . The Interaction Between Siliceous FAU Zeolites and Adsorptive Methylamine[J]. Chem. J. Chinese Universities, 2001, 22(3): 365.

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The Interaction Between Siliceous FAU Zeolites and Adsorptive Methylamine

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