Silicon oxynitrides of KCC-1, SBA-15 and MCM-41 for CO 2 capture with excellent stability and regenerability

Umesh Patil, Aziz Fihri, Abdul-Hamid M. Emwas, Vivek Polshettiwar

Research output: Contribution to journalArticlepeer-review

93 Scopus citations

Abstract

We report the use of silicon oxynitrides as novel adsorbents for CO 2 capture. Three series of functionalized materials based on KCC-1, SBA-15 and MCM-41 with Si-NH 2 groups were prepared using a simple one-step process via thermal ammonolysis using ammonia gas, and they demonstrated excellent CO 2 capture capabilities. These materials overcome several limitations of conventional amine-grafted mesoporous silica. They offer good CO 2 capture capacity, faster adsorption-desorption kinetics, efficient regeneration and reuse, more crucially excellent thermal and mechanical stability even in oxidative environments, and a clean and green synthesis route, which allows the overall CO 2 capture process to be practical and sustainable. This journal is © The Royal Society of Chemistry 2012.
Original languageEnglish (US)
Pages (from-to)2224
JournalChemical Science
Volume3
Issue number7
DOIs
StatePublished - 2012

ASJC Scopus subject areas

  • Chemistry(all)

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