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Home  >  Journal list  >  Journal of the Ceramic Society of Japan ( 2003 - 2007 )  >  Vol.114  No.1329 (May) (2006)  >  pp.421-424

Journal of the Ceramic Society of Japan ( 2003 - 2007 )
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Synthesis of Monolithic Zeolites with Macropores

Ryoji TAKAHASHI1), Satoshi SATO1), Toshiaki SODESAWA1), Hironobu NISHINO1) and Akiyuki YACHI1)
1) Department of Applied Chemistry, Faculty of Engineering, Chiba University

  Monolithic polycrystalline zeolites with through-macropores were prepared by steam treatment of bimodal porous silica gel monolith in the presence of tetrapropylammonium hydroxide, where the bimodal porous silica gel was prepared by inducing phase separation during sol-gel process. The silica skeleton with mesopores was transformed into polycrystalline zeolites maintaining continuous macropore morphology and monolithic shape. In the zeolites, there are three different pores arranged hierarchically: through-macropores originally existed in the precursor silica gel, small macropores at interstitial of zeolite crystallites, and micropores in zeolite framework.

Monolithic zeolite with through-macropores, Bimodal porous silica gel, Distinct trimodal pore structure

Received: February 16, 2006
Accepted: April 19, 2006 , Published online: May 01, 2006
Copyright (c) 2006 The Ceramic Society of Japan



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