Authors: Alias Mohd Yusof Nik Ahmad Nizam Noor Aini Abd Rashid
Publish Date: 2009/02/07
Volume: 17, Issue: 1, Pages: 39-47
Abstract
The faujasitetype of zeolites NaX and NaY and NaAtype of zeolite were synthesized from rice husk ash RHA via the hydrothermal conditions The combustion of rice husk at controlled temperature of 600 °C for an hour in open air produce more than 90 of amorphous silica in the ash which was reactive towards the synthesis of zeolites The formation of zeolite NaY from RHA is metastable and thus the seeding and ageing effects in the synthesis of zeolite NaY were investigated to avoid the formation of zeolite A or P as the impurities in zeolite NaY Zeolites NaX and NaA were also successfully synthesized with high purity absence of impurities and other phases and high reproducibility Thus the amorphous forms of silica in RHA can be used as a source of silica for the synthesis of faujasitetypes and NaAtype of zeolitesThe authors would like to send our gratitude to Ministry of Science Technology and Innovation MOSTI for the financial support and all of the members from the Department of Chemistry Faculty Science and from Faculty of Bioscience and Bioengineering Universiti Teknologi Malaysia in assisting this research
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