We present a rapid and surfactant-free temperature-assisted synthesis route to prepare γ-cyclodextrin-based metal–organic framework (γ-CD-MOF). The cubic crystals of the CD-MOF with an average edge length of 10–15 µm, specific surface area of 775 m2 g−1 and total pore volume of 0.229 cm3 g−1 were synthesized in much shorter time than conventional CD-MOFs. To show the efficiency of the synthesized CD-MOF as adsorbent of gas, the uptake of CO2 at different temperature and pressure was investigated. It is shown that the CO2 uptake increases with increasing pressure and decreasing temperature. Further microgravimetric investigation on gas adsorption at low pressure demonstrated superior gas uptake (ca. 147 mg g−1) than previous reports. At the maximum equilibrium pressure, the uptake amounts of CO2 were found to be 326 and 268 mg g−1 at 303 and 323 K, respectively. The synthesized CD-MOF has great potential to be used in gas storage and separation applications.

Rapid temperature-assisted synthesis of nanoporous γ-cyclodextrin-based metal–organic framework for selective CO2 adsorption

Anceschi A.;Trotta F.;Caldera F.
2021

Abstract

We present a rapid and surfactant-free temperature-assisted synthesis route to prepare γ-cyclodextrin-based metal–organic framework (γ-CD-MOF). The cubic crystals of the CD-MOF with an average edge length of 10–15 µm, specific surface area of 775 m2 g−1 and total pore volume of 0.229 cm3 g−1 were synthesized in much shorter time than conventional CD-MOFs. To show the efficiency of the synthesized CD-MOF as adsorbent of gas, the uptake of CO2 at different temperature and pressure was investigated. It is shown that the CO2 uptake increases with increasing pressure and decreasing temperature. Further microgravimetric investigation on gas adsorption at low pressure demonstrated superior gas uptake (ca. 147 mg g−1) than previous reports. At the maximum equilibrium pressure, the uptake amounts of CO2 were found to be 326 and 268 mg g−1 at 303 and 323 K, respectively. The synthesized CD-MOF has great potential to be used in gas storage and separation applications.
JOURNAL OF INCLUSION PHENOMENA AND MACROCYCLIC CHEMISTRY
99
3-4
245
253
https://link.springer.com/article/10.1007/s10847-020-01039-1
CO; 2; adsorption; Cyclodextrin; Metal–organic framework; Synthesis
Hamedi A.; Anceschi A.; Trotta F.; Hasanzadeh M.; Caldera F.
File in questo prodotto:
File Dimensione Formato  
Hamedi Manuscript.pdf

embargo fino al 15/01/2022

Descrizione: Articolo principale
Tipo di file: POSTPRINT (VERSIONE FINALE DELL’AUTORE)
Dimensione 700.71 kB
Formato Adobe PDF
700.71 kB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2318/1807142
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 5
  • ???jsp.display-item.citation.isi??? 5
social impact