Synthesis, characterization, and CO2 adsorption of three metal-organic frameworks (MOFs) : MIL-53, MIL-96, and amino-MIL-53

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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  • Hussein Rasool Abid
  • Zana Hassan Rada
  • Jin Shang
  • Shaobin Wang


Original languageEnglish
Pages (from-to)103-111
Journal / PublicationPolyhedron
Publication statusPublished - 14 Dec 2016
Externally publishedYes


In this study, MIL-53, MIL-96, and amino-MIL-53 were prepared, characterized, and tested for CO2 adsorption. These metal-organic frameworks (MOFs) exhibit different characteristics, although MIL-53 and amino-MIL-53 have the same topology. The BET surface areas are 1519, 687, and 262 m2/g for MIL-53, MIL-96, and amino-MIL-53, respectively. They exhibit different thermal stability with MIL-53 having the highest stability which starts to decompose at 773 K, while amino-MIL-53 and MIL-96 show lower thermal stability, decomposing upon heating up to 650 and 570 K, respectively. Static adsorption of CO2 at 1 bar and 273 K was conducted, showing CO2 adsorption capacities of 64, 124, and 48 cc/g for MIL-53, MIL-96, and amino-MIL-53, respectively. The heat of adsorption for CO2 was found to be 39, 28.6, and 28 kJ/mol for MIL-53, MIL-96, and amino-MIL-53, respectively. Dynamic adsorption experiment shows that MIL-53 achieves the highest working capacity among all three materials around 169 cc/g at 1 bar and room temperature (304 K). Amino-MIL-53 shows a dynamic adsorption capacity of 121 cc/g at the same conditions and MIL-96 demonstrates a dynamic adsorption of 98.2 cc/g at 1 bar and 298 K. The higher working capacity demonstrated by MIL-53 and amino-MIL-53 are attributed to their larger pore size, making them promising candidate adsorbents for practicing carbon capture in real-world applications.

Research Area(s)

  • Amino-MIL-53, CO2 adsorption, Dynamic adsorption, MIL-53, MIL-96