Spectroscopic investigations of gamma-ray irradiation effects on metal organic framework

Lafi, Abdul G. Al; Assfour, Bassem; Assaad, Thaer

doi:10.1007/s10853-021-06051-5

Cited by 12 publications

(5 citation statements)

References 52 publications

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“…Previous studies have thus shown a significant stability of MOF materials networks when irradiated under large doses of gamma rays. [7][8][9][10] Therefore, right after the events of Fukushima, the first studies about the capture of radionuclides in MOFs emerged in the literature. These species can be solubilized in water like actinides, technetium and cesium, [4,11] or gaseous noble gas like Xe, Kr [12] or iodine derivatives.…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, MOFs can show a great chemical resistance, as they can be stable in liquid water, in high‐temperature steam or under irradiation. Previous studies have thus shown a significant stability of MOF materials networks when irradiated under large doses of gamma rays [7–10] . Therefore, right after the events of Fukushima, the first studies about the capture of radionuclides in MOFs emerged in the literature.…”

Section: Introductionmentioning

confidence: 99%

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Capture of Gaseous Iodine in Isoreticular Zirconium‐Based UiO‐n Metal‐Organic Frameworks: Influence of Amino Functionalization, DFT Calculations, Raman and EPR Spectroscopic Investigation

Leloire

Walshe

Devaux

et al. 2022

Chemistry A European J

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A series of Zr-based UiO-n MOF materials (n = 66, 67, 68) have been studied for iodine capture. Gaseous iodine adsorption was collected kinetically from a home-made setup allowing the continuous measurement of iodine content trapped within UiO-n compounds, with organic functionalities (À H, À CH 3 , À Cl, À Br, À (OH) 2 , À NO 2 , À NH 2 , (À NH 2 ) 2 , À CH 2 NH 2 ) by in-situ UV-Vis spectroscopy. This study emphasizes the role of the amino groups attached to the aromatic rings of the ligands connecting the {Zr 6 O 4 (OH) 4 } brick. In particular, the preferential interaction of iodine with lone-pair groups, such as amino functions, has been experimentally observed and is also based on DFT calculations. Indeed, higher iodine contents were systematically measured for amino-functional-ized UiO-66 or UiO-67, compared to the pristine material (up to 1211 mg/g for UiO-67-(NH 2 ) 2 ). However, DFT calculations revealed the highest computed interaction energies for alkylamine groups (À CH 2 NH 2 ) in UiO-67 (À 128.5 kJ/mol for the octahedral cavity), and pointed out the influence of this specific functionality compared with that of an aromatic amine. The encapsulation of iodine within the pore system of UiO-n materials and their amino-derivatives has been analyzed by UV-Vis and Raman spectroscopy. We showed that a systematic conversion of molecular iodine (I 2 ) species into anionic I À ones, stabilized as I À •••I 2 or I 3 À complexes within the MOF cavities, occurs when I 2 @UiO-n samples are left in ambient light.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Capture of Gaseous Iodine in Isoreticular Zirconium‐Based UiO‐n Metal‐Organic Frameworks: Influence of Amino Functionalization, DFT Calculations, Raman and EPR Spectroscopic Investigation

Leloire

Walshe

Devaux

et al. 2022

Chemistry A European J

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“…Two-dimensional correlation spectroscopy (2DCS) analysis is a powerful analytical technique that can provide in-depth understanding of systems of interest (Noda, 1989) and is expected to mitigate the above-mentioned issues of SAXS data analysis. In general, 2DCS analysis could simplify the complex spectra, improve spectral resolution and determine the specific chronological order of spectral intensity variations as a function of external stimuli (Al Lafi, Alzier & Allaf, 2021). According to the literature, the 2DCS technique has been used in X-ray data analyses such as SAXS (Koga et al, 2020), wideangle X-ray scattering (WAXS) (Al Lafi, Alzier & Allaf, 2021), grazing-incidence small-angle X-ray scattering (GISAXS) (Zhang, Reiser et al, 2019), X-ray diffraction (Al Lafi, Assfour & Assaad, 2021) and X-ray photoelectron spectroscopy (Al Lafi, Mougrabya & Shehada, 2021).…”

Section: Introductionmentioning

confidence: 99%

“…In general, 2DCS analysis could simplify the complex spectra, improve spectral resolution and determine the specific chronological order of spectral intensity variations as a function of external stimuli (Al Lafi, Alzier & Allaf, 2021). According to the literature, the 2DCS technique has been used in X-ray data analyses such as SAXS (Koga et al, 2020), wideangle X-ray scattering (WAXS) (Al Lafi, Alzier & Allaf, 2021), grazing-incidence small-angle X-ray scattering (GISAXS) (Zhang, Reiser et al, 2019), X-ray diffraction (Al Lafi, Assfour & Assaad, 2021) and X-ray photoelectron spectroscopy (Al Lafi, Mougrabya & Shehada, 2021). These studies have helped experimenters to successfully decipher structure changes and their correlations as a function of external stimuli.…”

Section: Introductionmentioning

confidence: 99%

Promoting X-ray scattering data analysis with two-dimensional correlation spectroscopy

Zhang,

Liu,

Wei

et al. 2023

J Appl Cryst

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In situ X-ray scattering (XrS) experiments provide an impressive level of detail about microstructures and their evolution following a change in environment in soft matter; however, a major obstacle is examining the huge amount of data. In this work, the applications of two-dimensional correlation spectroscopy (2DCS) in the XrS data analysis are demonstrated with three exemplary studies. The responses of three typical soft-matter systems (thin film, solution and solid) to a change in environment (i.e. concentration, temperature) were chosen as the subjects of this study. In situ grazing-incidence small-angle X-ray scattering, small-angle X-ray scattering and wide-angle X-ray scattering results were analyzed with the 2DCS method. On the basis of Noda's rule, it is demonstrated that the 2DCS-XrS results could not only disclose the weak scattering signal common to organic-based materials but also determine the sequential order of the structures of interest by referring to their strong response to a change in environment. It is expected that the 2DCS method could promote XrS data analysis in a simple, fast and reliable way, which might interest users without extensive X-ray scattering knowledge. These features could help to convert XrS data into knowledge that can be implemented in advanced materials preparation.

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“…Previous studies have thus shown a significant stability of MOF materials networks when irradiated under large gamma ray doses. [7][8][9][10] Therefore, right after the events of Fukushima, the first studies about the capture of radionuclides in MOFs emerged in the literature. These species can be solubilized in water like actinides, technetium and cesium, [4,11] or gaseous like noble gas (Xe, Kr) [12] iodine derivatives.…”

Section: Introductionmentioning

confidence: 99%

Cover Feature: Capture of Gaseous Iodine in Isoreticular Zirconium‐Based UiO‐n Metal‐Organic Frameworks: Influence of Amino Functionalization, DFT Calculations, Raman and EPR Spectroscopic Investigation (Chem. Eur. J. 14/2022)

Leloire

Walshe

Devaux

et al. 2022

Chemistry A European J

View full text Add to dashboard Cite

Gaseous iodine has been captured by using a series of zirconium‐based UiO‐n metal–organic framework (MOF) sorbents. This study highlights the significant role of amino groups attached to the organic linker, which enhance the iodine uptake capacity, as well as its conversion into anionic iodide I3− species, trapped within UiO‐n cavities. More information can be found in the Research Article by T. Loiseau et al. (DOI: 10.1002/chem.202104437). Margot Friscourt and Orfeas Plastiras are thanked for the cover artwork.

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Spectroscopic investigations of gamma-ray irradiation effects on metal organic framework

Cited by 12 publications

References 52 publications

Capture of Gaseous Iodine in Isoreticular Zirconium‐Based UiO‐n Metal‐Organic Frameworks: Influence of Amino Functionalization, DFT Calculations, Raman and EPR Spectroscopic Investigation

Capture of Gaseous Iodine in Isoreticular Zirconium‐Based UiO‐n Metal‐Organic Frameworks: Influence of Amino Functionalization, DFT Calculations, Raman and EPR Spectroscopic Investigation

Promoting X-ray scattering data analysis with two-dimensional correlation spectroscopy

Cover Feature: Capture of Gaseous Iodine in Isoreticular Zirconium‐Based UiO‐n Metal‐Organic Frameworks: Influence of Amino Functionalization, DFT Calculations, Raman and EPR Spectroscopic Investigation (Chem. Eur. J. 14/2022)

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