CO2 selective membranes based on epoxy silane

Carmen Nistor*, Sergey Shishatskiy, Marcel Popa, Suzana Pereira Nunes

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


The sequestration of CO2 is currently an important task for the modernization of power plants and refineries. For this purpose membrane technology can be a helpful tool. There is an increasing motivation for improving the selectivity of membranes for CO2 separation from the other gases. Composite membranes based on 3-glycidoxypropyl trimethoxysilane (GPTMS) and different diamines containing polyether segments were synthesized by sol-gel processes. The composite membranes were characterized by single and mixed gas permeation, scanning electron microscopy and atomic force microscopy. CO2/N2 selectivity values up to 75 and CO 2/CH4 selectivity values up to 20 were measured.

Original languageEnglish (US)
Pages (from-to)603-610
Number of pages8
JournalRevue Roumaine de Chimie
Issue number7
StatePublished - Jul 2009
Externally publishedYes

ASJC Scopus subject areas

  • General Chemistry


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