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Preparation and Characterization of MCM-22 Zeolite by Varying-Temperature Hydrothermal Synthesis

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Abstract:

MCM-22 zeolite of high crystallinity was synthesized with varying-temperature hydrothermal method. Zeolite was characterized by means of XRD, SEM, TEM and TG-DTA. XRD pattern showed that the sample was MCM-22 zeolite. SEM analysis indicated that the MCM-22 sample is in the form of thin platelet-like crystals, and no amorphous material. TEM analysis exhibited regular shaped aggregate assembled by the independent growth of many small flaky crystals. N2-adsorption/desorption analysis showed that the pore size and BET surface area of MCM-22 were 3.5 nm and 387.8 m2/g, respectively. By means of the varying-temperature hydrothermal method, synthesis time can be effectively reduced, and energy consumption also decreases.

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Periodical:

Advanced Materials Research (Volumes 197-198)

Pages:

1587-1590

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.197-198.1587

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Online since:

February 2011

Authors:

Yue Cheng, Xiao Yuan Su, Mang Lu

Keywords:

Electron Microscopy, MCM-22 Zeolite, Thermal Analysis

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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