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Fabrication of ZnO incorporated TMA-A zeolite nanocrystals  

Lee, Seok-Ju (Department of Advanced Materials Science & Engineering, Hanseo University)
Lim, Chang-Sung (Department of Advanced Materials Science & Engineering, Hanseo University)
Kim, Ik-Jin (Department of Advanced Materials Science & Engineering, Hanseo University)
Publication Information
Journal of the Korean Crystal Growth and Crystal Technology / v.17, no.6, 2007 , pp. 238-244 More about this Journal
Abstract
Nano-sized ZnO crystals were successfully incorporated using ion exchange method in TMA-A zeolite synthesized by the hydrothermal method. The optimal composition for the synthesis of TMA-A zeolite was resulted in a solution of $Al(i-pro)_3$:2.2 TEOS:2.4 TMAOH:0.3 NaOH:200 $H_2O$. 0.3g of TMA-A zeolite and 5mol of $ZnCl_2$ solution were employed for the preparation of ZnO incorporated TMA-A zeolite. The ZnO incorporated TMA-A zeolite precursors, prepared from the process of mixing, stirring, centrifugal separation and drying, were calcined at temperatures from 400 to $600^{\circ}C$ for 3 h. The crystallization process of ZnO incorporated TMA-A zeolite was analyzed by X-ray diffraction (XRD). The Brunaur-Emett-Teller (BET) surface area of the ZnO incorporated TMA-A zeolite was measured. Subsequently, the morphology and the particle size depending on the temperature and time were observed using scanning electron microscopy(SEM), transmission electron microscopy(TEM) and particle size analyzer.
Keywords
ZnO; TMA-A zeolite; Nanocrystal; Incorporation; Hydrothermal; Ion exchange;
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Times Cited By KSCI : 1  (Citation Analysis)
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