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Particulate Science and Technology
An International Journal
Volume 32, 2014 - Issue 1
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Original Articles

Hydrothermal Synthesis of Nanosized Zeolite T Crystals

Korosh Shafiei Research Centre for Membrane Separation Process, Faculty of Chemical Engineering, Iran University of Science and Technology, Narmak, Tehran, IranCorrespondence[email protected]
,
Mansour Kazemi Moghaddam Research Centre for Membrane Separation Process, Faculty of Chemical Engineering, Iran University of Science and Technology, Narmak, Tehran, Iran
,
Shahram Ghanbari Pakdehi Faculty of Chemistry & Chemical Engineering, Malek Ashtar University of Technology, Tehran, Iran
&
Toraj Mohammadi Research Centre for Membrane Separation Process, Faculty of Chemical Engineering, Iran University of Science and Technology, Narmak, Tehran, Iran
Pages 8-19 | Published online: 02 Dec 2013
 
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Abstract

In this study, effects of gel formulation parameters such as Na2O/K2O molar ratio(from 0.05 up to 3) and tetra methyl ammonium hydroxide (TMAOH) additive in the synthesis of zeolite T (Linde Type T) crystals have been investigated in different SiO2/Al2O3 molar ratios from 5 to 29. Submicron and nanosize crystal of zeolite T from 100 nm up to 25 µm with distinctive crystal shapes from the needle type to cylindrical crystals have been synthesized successfully at the wide range of SiO2/Al2O3 ratios with and without TMAOH. It is shown that Na2O/K2O ratio plays the most important role in gel formulation. All synthesized crystalsare characterized by XRD and SEM analysis.

Notes

*Samples contain small amount of MER phase.

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