Template-free hydrothermal synthesis of high phase purity mordenite zeolite particles using natural zeolite seed for zeolite membrane preparation

Lee, Du-Hyoung, Alam, Syed Fakhar, Lee, Hye-Rheon, Sharma, Pankaj ORCID: https://orcid.org/0000-0003-2319-260X, Cho, Churl-Hee and Han, Moon-Hee 2016. Template-free hydrothermal synthesis of high phase purity mordenite zeolite particles using natural zeolite seed for zeolite membrane preparation. Membrane Journal 26 (5) , pp. 381-390. 10.14579/MEMBRANE_JOURNAL.2016.26.5.381

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Abstract

In this study, the natural mordenite (MOR) zeolite seeds were used for the synthesis of high purity mordenite crystals. The effect of seed concentration and crystallization time on the phase purity and surface morphology of MOR crystals has also been reported. The diffraction, elemental and scanning analysis of MOR zeolite particles obtained from 100 ghydrothermal solution batch containing 3 g natural seed, hydrothermally treated at 140°C for 72 h reveal the high phase-purity of as-synthesized sample having crystals of uniform size (1-2 μm). Moreover, high seed concentration leads to the production of mesoporous MOR particles composed of needle shape primary nano crystallites. The gases adsorption performances of as-synthesized MOR particle were carried out at 25°C and 0-1 bar. Surprisingly, MOR particles show good adsorption potential for CO2 (97.19 mg/g) compared to other gases. Thus it confirms that high purity MOR particles can be synthesized without using any organic template which gives an advantage of separation performance at lower price.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Chemistry Cardiff Catalysis Institute (CCI)
ISSN:	1226-0088
Date of Acceptance:	21 October 2016
Last Modified:	15 Nov 2022 12:45
URI:	https://orca.cardiff.ac.uk/id/eprint/153549

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