A Feasible One-Step Synthesis of Hierarchical Zeolite Beta with Uniform Nanocrystals via CTAB
1
College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, China
2
Dalian Research Institute of Petroleum & Petrochemicals, SINOPEC, Dalian 116045, China
*
Author to whom correspondence should be addressed.
Materials 2018, 11(5), 651; https://doi.org/10.3390/ma11050651
Received: 26 March 2018 / Revised: 17 April 2018 / Accepted: 20 April 2018 / Published: 24 April 2018
(This article belongs to the Special Issue Mesoporous Silica Catalysts)
A hierarchical zeolite Beta has been prepared by a feasible one-pot and one-step method, which is suitable for application in industrial production. The synthesis is a simple hydrothermal process with low-cost raw materials, without adding alcohol or adding seeds, and without aging, recrystallization, and other complex steps. The hierarchical zeolite Beta is a uniform nanocrystal (20–50 nm) aggregation with high external surface area (300 m2/g) and mesoporous volume (0.50 cm3/g), with the mesoporous structure composed of intercrystal and intracrystal pores. As an acid catalyst in benzylation of naphthalene with benzyl chloride, the hierarchical zeolite Beta has shown high activity in the bulky molecule reaction due to its introduction of mesostructure.
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Keywords:
hierarchical zeolite; zeolite Beta; zeolitic nanocrystals; CTAB; hydrothermal synthesis; naphthalene benzylation
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MDPI and ACS Style
Zhang, W.; Ming, W.; Hu, S.; Qin, B.; Ma, J.; Li, R. A Feasible One-Step Synthesis of Hierarchical Zeolite Beta with Uniform Nanocrystals via CTAB. Materials 2018, 11, 651.
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