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Issue 22, 2014
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Synthesis of mesoporous Beta and Sn-Beta zeolites and their catalytic performances

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Abstract

Mesoporous Beta zeolite has been successfully prepared through hydrothermal synthesis in the presence of cationic ammonium-modified chitosan as the meso-template. Through a subsequent solid–gas reaction between highly dealuminated mesoporous Beta zeolite and SnCl4 steam at an elevated temperature, mesoporous Sn-Beta has been facilely obtained. It was revealed that the addition of cationic chitosan induced the nanocrystal aggregation to particle sizes of ∼300 nm, giving rise to the intercrystalline/interparticle mesoporosity. In the Sn-implanting procedure, Sn species were demonstrated to be doped into the framework of the resulting mesoporous Beta zeolite in a tetrahedral environment without structural collapse. Due to the micro/mesoporous structures, both mesoporous Beta and Sn-Beta exhibited superior performances in α-pinene isomerization, Baeyer–Villiger oxidation of 2-adamantanone by hydrogen peroxide and the isomerization of glucose in water, respectively.

Graphical abstract: Synthesis of mesoporous Beta and Sn-Beta zeolites and their catalytic performances

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Publication details

The article was received on 23 Feb 2014, accepted on 28 Mar 2014 and first published on 28 Mar 2014


Article type: Paper
DOI: 10.1039/C4DT00567H
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Dalton Trans., 2014,43, 8196-8204

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    Synthesis of mesoporous Beta and Sn-Beta zeolites and their catalytic performances

    J. Jin, X. Ye, Y. Li, Y. Wang, L. Li, J. Gu, W. Zhao and J. Shi, Dalton Trans., 2014, 43, 8196
    DOI: 10.1039/C4DT00567H

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