A facile method for the fabrication of hierarchical porous nanocrystalline zeolite silicalite-1
by P. Aneesh, Rosilda Selvin, G. Unnikrishnan, Hsiu-Ling Hsu, M. Bououdina
International Journal of Materials Engineering Innovation (IJMATEI), Vol. 2, No. 1, 2011

Abstract: Zeolites are used in several industrial applications as catalysts, ion-exchangers and molecular sieves. The superior performance is related to the presence of well-defined micropores in the zeolite structure. However, in many cases the presence of micropores causes some limitations on their applicability. Construction of zeolite materials with hierarchical porous structures can improve reaction efficiencies and minimise channel blocking. The introduction of mesopores or macropores into zeolites has recently been achieved using macrotemplates. In this paper, we report the fabrication of zeolite structures having three generations, micro-, meso- and macroporosities using silicalite-1 nanocrystals and styrene butadiene rubber (SBR) latex particles as a macropore template. The procedure is very simple, and requires short period.

Online publication date: Thu, 26-Mar-2015

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