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http://dx.doi.org/10.14579/MEMBRANE_JOURNAL.2016.26.5.381

Template-free Hydrothermal Synthesis of High Phase Purity Mordenite Zeolite Particles Using Natural Zeolite Seed for Zeolite Membrane Preparation  

Lee, Du-Hyoung (Department of Energy Science and Technology, Graduate School of Energy Science and Technology(GEST), Chungnam National University)
Alam, Syed Fakhar (Department of Energy Science and Technology, Graduate School of Energy Science and Technology(GEST), Chungnam National University)
Lee, Hye-Rheon (Department of Energy Science and Technology, Graduate School of Energy Science and Technology(GEST), Chungnam National University)
Sharma, Pankaj (Department of Energy Science and Technology, Graduate School of Energy Science and Technology(GEST), Chungnam National University)
Cho, Churl-Hee (Department of Energy Science and Technology, Graduate School of Energy Science and Technology(GEST), Chungnam National University)
Han, Moon-Hee (Department of Energy Science and Technology, Graduate School of Energy Science and Technology(GEST), Chungnam National University)
Publication Information
Membrane Journal / v.26, no.5, 2016 , pp. 381-390 More about this Journal
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 g hydrothermal solution batch containing 3 g natural seed, hydrothermally treated at $140^{\circ}C$ for 72 h reveal the high phase-purity of as-synthesized sample having crystals of uniform size ($1-2{\mu}m$). 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 $25^{\circ}C$ and 0-1 bar. Surprisingly, MOR particles show good adsorption potential for $CO_2$ (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.
Keywords
natural zeolite; mordenite; seed; template-free; gas adsorption;
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