Application of Shaped UiO-66_NH2 Metal-Organic Framework for Gaseous Iodine Capture

Leloire, Maeva; Abramova, Alla; Couzon, Nelly; royer, sebastien; Loiseau, Thierry; Volkringer, Christophe; Dhainaut, Jeremy

Document type :

Autre communication scientifique (congrès sans actes - poster - séminaire...): Communication dans un congrès sans actes

Permalink :

http://hdl.handle.net/20.500.12210/90938

Title :

Application of Shaped UiO-66_NH2 Metal-Organic Framework for Gaseous Iodine Capture

Author(s) :

Leloire, Maeva [Auteur]
Unité de Catalyse et de Chimie du Solide (UCCS) - UMR 8181
Abramova, Alla [Auteur]

Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Couzon, Nelly [Auteur]

Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
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, Jeremy [Auteur]

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

Conference title :

Matériaux 2022

City :

Lille

Country :

France

Start date of the conference :

2022-10-25

HAL domain(s) :

Chimie/Chimie inorganique

English abstract : [en]

Metal-organic frameworks (MOF) is an emerging class of crystalline and porous materials. Their structure results from the combination of metal clusters (or ions) with multitopic organic linkers. By changing the metal or ...
Show more >Metal-organic frameworks (MOF) is an emerging class of crystalline and porous materials. Their structure results from the combination of metal clusters (or ions) with multitopic organic linkers. By changing the metal or the linker, or by adding organic functionalities to the linker, the physicochemical properties of the MOF can be tailored for specific applications. For instance, iodine-131 is a major fission by-product which can increase the incidence of thyroid cancers. Following a nuclear meltdown, venting is conducted to avoid overpressurization. The vented steam, containing radionuclides such as 131I2, passes through a filtered containment venting system to capture the contaminants. Typically, a fixed bed of silver-doped ZSM-5 zeolite is used. However, several limitations remain due to the small pore aperture of the zeolite (0.55 nm), hardly accommodating bulky iodine derivatives, and the competitive adsorption of contaminants (mainly CO). Hence adsorbents more specific towards I2 and its derivatives, presenting larger pores and/or higher iodine capture capacity, remain desired. In particular, the UiO-66 MOF presents a good stability against water, a high adsorption capacity, and larger pore sizes (0.8 to 1.1 nm). By adding amino moieties on the terephthalate linker, one can obtain UiO-66_NH2, an adsorbent with high binding energy towards electro-acceptors such as I2 [1]. Recently, our group applied severe nuclear accidental conditions to this MOF, previously shaped as binderless granules, showing high retention of 131I2 and preserved physicochemical properties [2]. In a subsequent step, we studied the preparation of UiO-66_NH2-based extrudates and granules that present both high adsorption capacity towards iodine (see Figure 1) and a significantly improved mechanical resistance [3]. The main results and perspectives of this work will be discussed.Show less >

Language :

Anglais

Peer reviewed article :

Non

Audience :

Internationale

Popular science :

Non

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 :

2023-11-17T14:35:49Z
2023-12-07T13:27:51Z

Files

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Version	Link	Modification date
2	20.500.12210/90938*	2023-12-07T13:26:22Z
1	20.500.12210/90938.1	2023-11-17T14:35:49Z

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Application of Shaped UiO-66_NH2 Metal-Organic ...

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