Template free ZSM-5 from siliceous rice hull ash with varying C contents

Rajan K. Vempati, Ramesh Borade, Ramesh S. Hegde, Sridhar Komarneni

Research output: Contribution to journalArticlepeer-review

69 Scopus citations


Green technology or use of environmentally friendly chemical process is now gaining popularity because of the demand from the conscientious consumers and strict environmental regulations. For manufacturing ZSM-5, tetrapropylammonium cations are used as a template. The use of toxic tetrapropylammonium hydroxide for templating ZSM-5 is a common practice and it also adds to the production costs. In this paper, a template free synthesis of ZSM-5 with various C contents using siliceous rice hulls, a byproduct of rice milling industries, is discussed. These ZSM-5 zeolites composited with amorphous C could be commercially exploited for the removal of volatile organic compounds (VOCs) from either wastewater or air. Carbon free ZSM-5 was also produced by pyrolyzing the C-containing ZSM-5 at 773 K for 3 h.

Original languageEnglish (US)
Pages (from-to)134-140
Number of pages7
JournalMicroporous and Mesoporous Materials
Issue number1-3
StatePublished - Jul 28 2006

All Science Journal Classification (ASJC) codes

  • General Chemistry
  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials


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