Title :

Extrusion-Spheronization of UiO-66 and UiO-66_NH2 into Robust-Shaped Solids and Their Use for Gaseous Molecular Iodine, Xenon, and Krypton Adsorption

Author(s) :

Abramova, Alla [Auteur]
Institut Michel Eugène Chevreul - FR 2638 [IMEC]
Couzon, Nelly [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Leloire, Maeva [Auteur]
Institut de Radioprotection et de Sûreté Nucléaire [IRSN]
Unité de Catalyse et de Chimie du Solide (UCCS) - UMR 8181
Nerisson, Philippe [Auteur]
Institut de Radioprotection et de Sûreté Nucléaire [IRSN]
Cantrel, Laurent [Auteur]
Institut de Radioprotection et de Sûreté Nucléaire [IRSN]
royer, sebastien [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Loiseau, Thierry [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Volkringer, Christophe [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Dhainaut, Jérémy [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181

Journal title :

ACS Applied Materials & Interfaces

Abbreviated title :

ACS Appl. Mater. Interfaces

Publisher :

American Chemical Society (ACS)

Publication date :

2022-02-21

ISSN :

1944-8244

English keyword(s) :

metal−organic frameworks
extrusion-spheronization
shaping
iodine capture
Xe/Kr separation

HAL domain(s) :

Chimie/Catalyse
Chimie/Chimie inorganique

English abstract : [en]

The use of an extrusion-spheronization process was investigated to prepare robust and highly porous extrudates and granules starting from UiO-66 and UiO-66_NH2 metal–organic framework powders. As-produced materials were ...
Show more >The use of an extrusion-spheronization process was investigated to prepare robust and highly porous extrudates and granules starting from UiO-66 and UiO-66_NH2 metal–organic framework powders. As-produced materials were applied to the capture of gaseous iodine and the adsorption of xenon and krypton. In this study, biosourced chitosan and hydroxyethyl cellulose (HEC) are used as binders, added in low amounts (less than 5 wt % of the dried solids), as well as a colloidal silica as a co-binder when required. Characterizations of the final shaped materials reveal that most physicochemical properties are retained, except the textural properties, which are impacted by the process and the proportion of binders (BET surface area reduction from 5 to 33%). On the other hand, the mechanical resistance of the shaped materials toward compression is greatly improved by the presence of binders and their respective contents, from 0.5 N for binderless UiO-66 granules to 17 N for UiO-66@HEC granules. UiO-66_NH2-based granules demonstrated consequent iodine capture after 48 h, up to 527 mg/g, in line with the pristine UiO-66_NH2 powder (565 mg/g) and proportionally to the retaining BET surface area (−5% after shaping). Analogously, the shaped materials presented xenon and krypton sorption isotherms correlated to their BET surface area and high predicted xenon/krypton selectivity, from 7.1 to 9.0. Therefore, binder-aided extrusion-spheronization is an adapted method to produce shaped solids with adequate mechanical resistance and retained functional properties.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

ANR Project :

Textiles fonctionnalisés par des solides poreux de type MOF pour la capture et/ou la dégradation d'agents toxiques

Administrative institution(s) :

Université de Lille
CNRS
Centrale Lille
ENSCL
Univ. Artois

Collections :

• Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181

Research team(s) :

Matériaux pour la catalyse (MATCAT)
Matériaux hybrides (MATHYB)

Submission date :

2022-02-24T12:28:25Z
2022-02-24T15:45:41Z