Offretite zeolite single crystals synthesized by amphiphile-templating approach

Document Type

Article

Publication Date

4-1-2021

Abstract

Offretite zeolite synthesis in the presence of cetyltrimethylammonium bromide (CTABr) is reported. The offretite crystals were synthesized with a high crystallinity and hexagonal prismatic shape after only 72 h of hydrothermal treatment at 180 degrees C. The CTABr has dual-functions during the crystallization of offretite, viz. as structure-directing agent and as mesoporogen. The resulting offretite crystals, with a Si/Al ratio of 4.1, possess more acid sites than the conventional offretite due to their high crystallinity and hierarchical structure. The synthesized offretite is also more reactive than its conventional counterpart in the acylation of 2-methylfuran for biofuel production under non-microwave instant heating condition, giving 83.5% conversion with 100% selectivity to the desired product 2-acetyl-5-methylfuran. Hence, this amphiphile synthesis approach offers another cost-effective and alternative route for crystallizing zeolite materials that require expensive organic templates.

Keywords

Hierarchical zeolites, Crystal growth, Offretite zeolite, Amphiphile-templating approach, Acylation of 2-methylfuran

Publication Title

Molecules

Divisions

InstituteofBiologicalSciences

Funders

RUI [1001/PKIMIA/8011128]

Volume

26

Issue

8

Publisher

MDPI

Publisher Location

ST ALBAN-ANLAGE 66, CH-4052 BASEL, SWITZERLAND

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