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Volume : III, Issue : IV, May - 2013

XRD AND SEM STUDY OF POST SYNTHETIC MODIFIED LOW SILICA ZEOLITES

K.U.GORE

Published By : Laxmi Book Publication

Abstract :

The idea of introducing foreign atom in to the crystal lattice of the solid zeolites are to change their catalytic activity and selectivity of the products and the reactants The selective samples of post Synthetic low silica modified Na-Y zeolite are studied in the present paper. The post synthetic modification of the original samples affect the pore dimension, crystalinity, void volume, frame work structure, catalytic activity, selectivity, stability etc of the original sample of the zeolite. Na-Y zeolite was made available from Union carbide corporation, USA (Linde,SK-40) for the post Synthetic modification having ratio of Si//\Al=2.4.It is modified to NH4-Y form by ion exchange, using 2N ammonium Nitrate (NH4NO3 )solution. The NH4-Y zeolite is washed several times with de-ionized hot water while filtering it.This highly crystallineNH4-Y sample was used to prepare different samples of low silica Ti-Y zeolite by using K2 Tio(C2O4) 2 2H2O (Potassium Titanyl oxalate) one of the best source as it is clearly water soluble and found to give easy access for frame work incorporation of Titanium by using appropriate mole fraction of Potassium Titanyl oxalate. The samples prepared was ion exchanged by 2N ammonium Nitrate (NH4NO3 ) solution thrice to remove any traces of ion exchanged alkali Sault K as per above procedure after each sample prepared. The XRD, and ESR techniques are mainly applied along with other techniques for the physical study and to identify the material prepared.

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Cite This Article :

K.U.GORE, (2013). XRD AND SEM STUDY OF POST SYNTHETIC MODIFIED LOW SILICA ZEOLITES. Indian Streams Research Journal, Vol. III, Issue. IV, http://oldisrj.lbp.world/UploadedData/2327.pdf

References :

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