Synthesis of zeolite T powders by direct dissolution of rice husk ash: an agro-waste material
IR@CGCRI: CSIR-Central Glass and Ceramic Research Institute, Kolkata
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| Title |
Synthesis of zeolite T powders by direct dissolution of rice husk ash: an agro-waste material
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| Creator |
Bohra, Subha
Dey, Kartick Prasad Kundu, Debtosh Naskar, Milan Kanti |
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| Subject |
Structural Clay Products
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| Description |
Rice husk ash (RHA), an agro-waste material, was used for the synthesis of zeolite T powders following a simple and cost-effective process. In this process, silica as silicate was directly extracted from solid RHA particles in the presence of aluminate and other aqueous-based precursor materials. The synthesized powders were characterized by thermogravimetry analysis, differential thermal analysis, X-ray diffraction, Fourier transform infrared spectroscopy, N-2 physisorption measurements, and field emission scanning electron microscopy (FESEM). Crystallization of zeolite T powders was noticed at 100 A degrees C/24 h. The vibration bands of the powders at around 580 and 630 cm(-1) indicated the characteristic double six ring of zeolite T. Micropore surface area and micropore volume of zeolite T increased significantly at 100 A degrees C/72 h. FESEM images showed ellipse-shaped morphology of the powders, and their aspect ratio increased with increase in reaction time. A tentative mechanism was proposed for direct extraction of silica as silicate from RHA, and its conversion to zeolite T in the presence of other aqueous-based precursors by a single step process.
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| Publisher |
Springer
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| Date |
2013-11
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://cgcri.csircentral.net/2473/1/bohra.pdf
Bohra, Subha and Dey, Kartick Prasad and Kundu, Debtosh and Naskar, Milan Kanti (2013) Synthesis of zeolite T powders by direct dissolution of rice husk ash: an agro-waste material. Journal of Materials Science, 48 (22). pp. 7893-7901. ISSN 0022-2461 |
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| Relation |
http://cgcri.csircentral.net/2473/
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