Journal of Porous Materials

, Volume 18, Issue 2, pp 205–210

Sorption studies of CO2, CH4, N2, CO, O2 and Ar on nanoporous aluminum terephthalate [MIL-53(Al)]

  • Phani Rallapalli
  • K. P. Prasanth
  • Dinesh Patil
  • Rajesh S. Somani
  • R. V. Jasra
  • H. C. Bajaj
Article

DOI: 10.1007/s10934-010-9371-7

Cite this article as:
Rallapalli, P., Prasanth, K.P., Patil, D. et al. J Porous Mater (2011) 18: 205. doi:10.1007/s10934-010-9371-7

Abstract

Aluminum terephthalate, MIL-53(Al), metal–organic framework synthesized hydrothermally and purified by solvent extraction method was used as an adsorbent for gas adsorption studies. The synthesized MIL-53(Al) was characterized by powder X-Ray diffraction analysis, surface area measurement using N2 adsorption–desorption at 77 K, FTIR spectroscopy and thermo gravimetric analysis. Adsorption isotherms of CO2, CH4, CO, N2, O2 and Ar were measured at 288 and 303 K. The absolute adsorption capacity was found in the order CO2>CH4>CO>N2>Ar>O2. Henry’s constants, heat of adsorption in the low pressure region and adsorption selectivities for the adsorbate gases were calculated from their adsorption isotherms. The high selectivity and low heat of adsorption for CO2 suggests that MIL-53(Al) is a potential adsorbent material for the separation of CO2 from gas mixtures. The high selectivity for CH4 over O2 and its low heat of adsorption suggests that MIL-53(Al) could also be a compatible adsorbent for the separation of methane from methane–oxygen gas mixtures.

Keywords

MOF Adsorbent Aluminum terephthalate MIL-53(Al) Gas separation 

Copyright information

© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  • Phani Rallapalli
    • 1
  • K. P. Prasanth
    • 1
  • Dinesh Patil
    • 1
  • Rajesh S. Somani
    • 1
  • R. V. Jasra
    • 2
  • H. C. Bajaj
    • 1
  1. 1.Discipline of Inorganic Materials and Catalysis, Central Salt and Marine Chemicals Research Institute (CSMCRI), Council of Scientific & Industrial Research (CSIR)BhavnagarIndia
  2. 2.R & D Centre, Reliance Industries Limited, Manufacturing DivisionVadodaraIndia

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