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Metal–Organic Frameworks (MOFs) Containing Adsorbents for Carbon Capture

Author

Listed:
  • Linda Ansone-Bertina

    (Department of Environmental Science, University of Latvia, LV-1004 Riga, Latvia)

  • Viesturs Ozols

    (Department of Environmental Science, University of Latvia, LV-1004 Riga, Latvia)

  • Lauris Arbidans

    (Department of Environmental Science, University of Latvia, LV-1004 Riga, Latvia)

  • Linda Dobkevica

    (Department of Environmental Science, University of Latvia, LV-1004 Riga, Latvia)

  • Kristaps Sarsuns

    (Laboratory of Molecular Crystals, Faculty of Chemistry, University of Latvia, LV-1004 Riga, Latvia)

  • Edgars Vanags

    (Laboratory of Materials Morphology and Structure Investigations, Institute of Solid State Physics, University of Latvia, LV-1063 Riga, Latvia)

  • Maris Klavins

    (Department of Environmental Science, University of Latvia, LV-1004 Riga, Latvia)

Abstract

In this study, new composite materials of montmorillonite, biochar, or aerosil, containing metal–organic frameworks (MOF) were synthesized in situ. Overall, three different MOFs—CuBTC, UTSA-16, and UiO-66-BTEC—were used. Obtained adsorbents were characterized using powder X-ray diffraction, thermogravimetric analysis, nitrogen adsorption porosimetry, scanning electron microscopy, energy-dispersive X-ray spectroscopy, and Fourier transform infrared spectrophotometry. Additionally, the content of metallic and nonmetallic elements was determined to investigate the crystalline structure, surface morphology, thermal stability of the obtained MOF-composites, etc. Cyclic CO 2 adsorption analysis was performed using the thermogravimetric approach, modeling adsorption from flue gasses. In our study, the addition of aerosil to CuBTC (CuBTC-A-15) enhanced the sorbed CO 2 amount by 90.2% and the addition of biochar (CuBTC-BC-5) increased adsorbed the CO 2 amount by 75.5% in comparison to pristine CuBTC obtained in this study. Moreover, the addition of montmorillonite (CuBTC-Mt-15) increased the adsorbed amount of CO 2 by 27%. CuBTC-A-15 and CuBTC-BC-5 are considered to be the most perspective adsorbents, capturing 3.7 mmol/g CO 2 and showing good stability after 20 adsorption-desorption cycles.

Suggested Citation

  • Linda Ansone-Bertina & Viesturs Ozols & Lauris Arbidans & Linda Dobkevica & Kristaps Sarsuns & Edgars Vanags & Maris Klavins, 2022. "Metal–Organic Frameworks (MOFs) Containing Adsorbents for Carbon Capture," Energies, MDPI, vol. 15(9), pages 1-33, May.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:9:p:3473-:d:811906
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    References listed on IDEAS

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    1. Alfe, M. & Policicchio, A. & Lisi, L. & Gargiulo, V., 2021. "Solid sorbents for CO2 and CH4 adsorption: The effect of metal organic framework hybridization with graphene-like layers on the gas sorption capacities at high pressure," Renewable and Sustainable Energy Reviews, Elsevier, vol. 141(C).
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