Journal
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
Volume 48, Issue 22, Pages 10015-10020Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ie900665f
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Funding
- China Scholarship Council
- U.S. National Science Foundation
- National Natural Science Foundation of China [20606012]
- Doctorate Foundation of South China University of Technology
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Adsorption equilibrium and diffusion of CO2 on microporous metal-organic frameworks (MOF-5, or IRMOF-1) crystals were experimentally studied by the gravimetric method in the pressure range up to I atm. The MOF-5 crystal cubes of about 40-60 mu m in sizes were synthesized by the solvothermal method. Freundlich adsorption isotherm equation can fit well CO2 adsorption isotherrns on MOF-5, with isosteric heat of adsorption of about 34 kJ/mol. Diffusion coefficient of CO2 in the MOF-5 is in the range of 8.1-11.5 x 10(-9) cm(2)/s in 295-331K with activation energy of 7.61 kJ/mol. MOF-5 offers attractive adsorption properties as an adsorbent for separation of CO2 from flue gas.
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