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Hydrothermal Synthesis of Analcime from Local Pottery Stone
Abstract:
In this study, local pottery stone (PTS) was hydrothermal treated with 2 M of NaOH at different reaction temperatures (60, 80 and 120°C) and times (8, 12 and 24 h) in a Teflon-lined stainless steel autoclave in order to synthesize analcime fine powders. All the as-prepared samples were characterized for their phase composition and morphology using X-ray diffraction (XRD) and scanning electron microscopy (SEM), respectively. The results showed that under the conditions investigated, pure analcime could be obtained only at 120°C for all synthesis durations. The analcime microcrystalline particles exhibit isometric trapezohedron or deltoidal icositetrahedron morphology with narrow size distribution from 8 to 14 µm.
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801-805
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Online since:
February 2013
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© 2013 Trans Tech Publications Ltd. All Rights Reserved
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