Amine-bearing mesoporous silica for CO2 removal from dry and humid air

Youssef Belmabkhout, Rodrigo Serna-Guerrero, Abdelhamid Sayari*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

234 Scopus citations


This work demonstrates the potential use of triamine-grafted pore-expanded mesoporous silica TRI-PE-MCM-41, for the removal of CO2 from nitrogen, oxygen and water vapor-containing mixtures. In addition to unprecedentedly high CO2 uptake at low pressure, high adsorption rate and stability, this material exhibited very high selectivity for CO2 over N2 and O2, regardless of the presence of moisture. It is thus highly suitable for use in CO2 removal from air, for example in air purification and in closed-circuit breathing systems.

Original languageEnglish (US)
Pages (from-to)3695-3698
Number of pages4
Issue number11
StatePublished - 2010


  • Adsorption
  • Air
  • Porous media
  • Purification
  • Selectivity
  • Separations

ASJC Scopus subject areas

  • General Chemistry
  • General Chemical Engineering
  • Industrial and Manufacturing Engineering


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