Naskar, Milan Kanti and Kundu, Debtosh and Chatterjee, Minati (2011) An Aqueous-Based Synthesis of Flower-Like Hydroxy Sodalite Particles in the Presence of Cetyltrimethylammonium bromide. Journal of the American Ceramic Society, 94 (6). pp. 1643-1646. ISSN 0002-7820

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Hydroxy sodalite (HS) particles were synthesized hydrothermally at 90 degrees C for 10 h in the presence of cetyltrimethylammonium bromide (CTAB) and other aqua-based precursor materials like sodium aluminate, sodium metasilicate, and water. Crystalline phases and microstructures of the synthesized particles were studied by X-ray diffraction and field emission scanning electron microscopy, respectively. The effect of CTAB concentrations on the crystallinity and morphology of the synthesized particles was investigated. Thread-ball like HS particles along with some cube-shaped zeolite A were obtained in the presence of 0-0.5 mM CTAB while flower-like HS particles were observed in the presence of 1-5 mM of CTAB concentrations. With increase in CTAB concentration, HS phase increased significantly, and phase pure HS particles resulted for 3 and 5 mM of CTAB concentrations. A mechanism for the formation of flower-like HS particles was also proposed.

Item Type: Article
Subjects: Processing Science
Divisions: Sol Gel
Depositing User: Bidhan Chaudhuri
Date Deposited: 16 Jan 2012 12:08
Last Modified: 25 Feb 2013 08:21

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