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Abstract:
The use of natural aluminosilicate minerals as the low-cost starting materials for zeolite synthesis is a field of current interest. However, impurities existing in these minerals greatly affect the purity of final products. Herein, we describe a cheap and green route for synthesizing pure-phase zeolite beta from natural aluminosilicate minerals via a modified nanoscale depolymerization-reorganization approach. The physicochemical and catalytic properties of the synthesized zeolite beta were systematically characterized and assessed, respectively. The results indicate that the resulting zeolite beta possesses more moderate Bronsted acid sites compared with the reference one, and thus exhibits higher catalytic activity in the esterification of acetic acid with ethanol. This methodology demonstrates great perspective for the low-cost and environmentally-benign synthesis of zeolite beta that avoids the use of aluminum- and silicon-containing inorganic chemicals, eliminates the interference of impurities, and reduces the usage of the organic template. (C) 2016 Elsevier B.V. All rights reserved.
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APPLIED CLAY SCIENCE
ISSN: 0169-1317
Year: 2016
Volume: 126
Page: 1-6
3 . 1 0 1
JCR@2016
5 . 3 0 0
JCR@2023
ESI Discipline: GEOSCIENCES;
ESI HC Threshold:196
JCR Journal Grade:1
CAS Journal Grade:2
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ESI Highly Cited Papers on the List: 0 Unfold All
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30 Days PV: 2
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