Covalently Bound MOF/COF Aerogels as Robust Catalytic Filters for Rapid Nerve Agent Decomposition

Martin Sahul; Youven Benseghir; Tanja Eder; Flora Schöfbeck; Lingcong Ge; Dániel Hetey; Michael R. Reithofer; Jia Min Chin

doi:10.1021/acsami.4c19759

Covalently Bound MOF/COF Aerogels as Robust Catalytic Filters for Rapid Nerve Agent Decomposition

Martin Sahul
, Youven Benseghir
, Tanja Eder
, Flora Schöfbeck
, Lingcong Ge
, Dániel Hetey
, Michael R. Reithofer (Korresp. Autor*in)
, Jia Min Chin (Korresp. Autor*in)

Veröffentlichungen: Beitrag in Fachzeitschrift › Artikel › Peer Reviewed

Abstract

Metal-organic frameworks (MOFs) show promising results in various fields, such as gas separation and catalysis, but they face limitations due to problems associated with their low processability. This study addresses these challenges by utilizing postsynthetic modification (PSM) of NH₂-UiO-66 and NH₂-MOF-808 with 1,3,5-benzene tricarbaldehyde (BTCA) to form hybrid aerogels consisting of MOF-loaded covalent organic framework (COF). BTCA-modified MOF nanoparticles via imine bond formation were confirmed by ¹H NMR, FTIR, and solid-state ¹³C NMR spectroscopies. MOF/COF composites were analyzed via TGA, PXRD, BET, and solid-state ¹³C NMR, showing retained crystallinity and increased porosity in comparison to the sum of the individual components. Moreover, improved aerogel mechanical properties and increased MOF loading of up to 75 wt % were achieved for covalently bound aerogels. Hybrid aerogel composites were successfully utilized as catalytic filters for the decomposition of nerve agent simulant and pesticide dimethyl-4-nitrophenylphosphate (DMNP), avoiding secondary pollution associated with MOF powder catalysis.

Originalsprache	Englisch
Fachzeitschrift	ACS Applied Materials and Interfaces
DOIs	https://doi.org/10.1021/acsami.4c19759
Publikationsstatus	Elektronische Veröffentlichung vor Drucklegung - 2025

Fördermittel

The authors acknowledge support from the European Research Council under the European Union\u2019s Horizon 2020 Programme (ERC Grant Agreement No. 101002176), the O\u0308sterreichische Forschungsfo\u0308rderungsgesellschaft (FFG projects BATMAN FFG-897938 and ReNUSLIC FFG-894592), and the Austrian Science Foundation (grant no. P-34662). The authors also thank the Core Facility fu\u0308r Cell Imaging und Ultrastrukturforschung (CIUS) (Faculty of Biology, University of Vienna), NMR Centre (Faculty of Chemistry, University of Vienna), and Stephan Puchegger of Faculty Center for Nanostructure Research (Faculty of Physics, University of Vienna) for their help with measurements. This research was also supported by the Scientific Service Units of IST Austria through resources provided by Electron Microscopy Facility.

ÖFOS 2012

104003 Anorganische Chemie
104015 Organische Chemie
205004 Funktionsmaterialien
205019 Materialwissenschaften

Zugriff auf Dokument

10.1021/acsami.4c19759Lizenz: CC BY 4.0

https://phaidra.univie.ac.at/o:2156848Lizenz: CC BY 4.0

Andere Dateien und Links

Verknüpfung zur Publikation in Scopus

Zitationsweisen

@article{b3660ab1b20f4f4b9357aa722d84fe14,

title = "Covalently Bound MOF/COF Aerogels as Robust Catalytic Filters for Rapid Nerve Agent Decomposition",

abstract = "Metal-organic frameworks (MOFs) show promising results in various fields, such as gas separation and catalysis, but they face limitations due to problems associated with their low processability. This study addresses these challenges by utilizing postsynthetic modification (PSM) of NH2-UiO-66 and NH2-MOF-808 with 1,3,5-benzene tricarbaldehyde (BTCA) to form hybrid aerogels consisting of MOF-loaded covalent organic framework (COF). BTCA-modified MOF nanoparticles via imine bond formation were confirmed by 1H NMR, FTIR, and solid-state 13C NMR spectroscopies. MOF/COF composites were analyzed via TGA, PXRD, BET, and solid-state 13C NMR, showing retained crystallinity and increased porosity in comparison to the sum of the individual components. Moreover, improved aerogel mechanical properties and increased MOF loading of up to 75 wt \% were achieved for covalently bound aerogels. Hybrid aerogel composites were successfully utilized as catalytic filters for the decomposition of nerve agent simulant and pesticide dimethyl-4-nitrophenylphosphate (DMNP), avoiding secondary pollution associated with MOF powder catalysis.",

keywords = "aerogels, catalysis, covalent organic frameworks, metal−organic frameworks, organophosphate degradation, porosity",

author = "Martin Sahul and Youven Benseghir and Tanja Eder and Flora Sch{\"o}fbeck and Lingcong Ge and D{\'a}niel Hetey and Reithofer, \{Michael R.\} and Chin, \{Jia Min\}",

note = "Publisher Copyright: {\textcopyright} 2025 The Authors. Published by American Chemical Society. Accession Number WOS:001436071000001 PubMed ID 40028880",

year = "2025",

doi = "10.1021/acsami.4c19759",

language = "English",

journal = "ACS Applied Materials and Interfaces",

issn = "1944-8244",

publisher = "AMER CHEMICAL SOC",

}

TY - JOUR

T1 - Covalently Bound MOF/COF Aerogels as Robust Catalytic Filters for Rapid Nerve Agent Decomposition

AU - Sahul, Martin

AU - Benseghir, Youven

AU - Eder, Tanja

AU - Schöfbeck, Flora

AU - Ge, Lingcong

AU - Hetey, Dániel

AU - Reithofer, Michael R.

AU - Chin, Jia Min

PY - 2025

Y1 - 2025

N2 - Metal-organic frameworks (MOFs) show promising results in various fields, such as gas separation and catalysis, but they face limitations due to problems associated with their low processability. This study addresses these challenges by utilizing postsynthetic modification (PSM) of NH2-UiO-66 and NH2-MOF-808 with 1,3,5-benzene tricarbaldehyde (BTCA) to form hybrid aerogels consisting of MOF-loaded covalent organic framework (COF). BTCA-modified MOF nanoparticles via imine bond formation were confirmed by 1H NMR, FTIR, and solid-state 13C NMR spectroscopies. MOF/COF composites were analyzed via TGA, PXRD, BET, and solid-state 13C NMR, showing retained crystallinity and increased porosity in comparison to the sum of the individual components. Moreover, improved aerogel mechanical properties and increased MOF loading of up to 75 wt % were achieved for covalently bound aerogels. Hybrid aerogel composites were successfully utilized as catalytic filters for the decomposition of nerve agent simulant and pesticide dimethyl-4-nitrophenylphosphate (DMNP), avoiding secondary pollution associated with MOF powder catalysis.

AB - Metal-organic frameworks (MOFs) show promising results in various fields, such as gas separation and catalysis, but they face limitations due to problems associated with their low processability. This study addresses these challenges by utilizing postsynthetic modification (PSM) of NH2-UiO-66 and NH2-MOF-808 with 1,3,5-benzene tricarbaldehyde (BTCA) to form hybrid aerogels consisting of MOF-loaded covalent organic framework (COF). BTCA-modified MOF nanoparticles via imine bond formation were confirmed by 1H NMR, FTIR, and solid-state 13C NMR spectroscopies. MOF/COF composites were analyzed via TGA, PXRD, BET, and solid-state 13C NMR, showing retained crystallinity and increased porosity in comparison to the sum of the individual components. Moreover, improved aerogel mechanical properties and increased MOF loading of up to 75 wt % were achieved for covalently bound aerogels. Hybrid aerogel composites were successfully utilized as catalytic filters for the decomposition of nerve agent simulant and pesticide dimethyl-4-nitrophenylphosphate (DMNP), avoiding secondary pollution associated with MOF powder catalysis.

KW - aerogels

KW - catalysis

KW - covalent organic frameworks

KW - metal−organic frameworks

KW - organophosphate degradation

KW - porosity

UR - https://www.scopus.com/pages/publications/86000178081

U2 - 10.1021/acsami.4c19759

DO - 10.1021/acsami.4c19759

M3 - Article

AN - SCOPUS:86000178081

SN - 1944-8244

JO - ACS Applied Materials and Interfaces

JF - ACS Applied Materials and Interfaces

ER -

Covalently Bound MOF/COF Aerogels as Robust Catalytic Filters for Rapid Nerve Agent Decomposition

Abstract

Fördermittel

ÖFOS 2012

Zugriff auf Dokument

Andere Dateien und Links

Fingerprint

Zitationsweisen