Post synthetically modified IRMOF-3 for efficient recovery and selective sensing of U(<scp>vi</scp>) from aqueous medium

Sravani, V. Venkata; Tripathi, Sudhir; Sreenivasulu, B.; Kumar, Satendra; Maji, S.; Rao, C. V. S. Brahmmananda; Suresh, A.; Sivaraman, N.

doi:10.1039/d1ra02971a

Cited by 21 publications

(9 citation statements)

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“… 47 The sharp bands from 1682 to 1344 cm −1 signified C C stretching vibrations of a benzene ring and symmetric and asymmetric modes of the dicarboxylate groups. 48 Furthermore, the peaks at 1101 and 830 cm −1 correspond to the aromatic C–H bending vibrations. 49 The absorption peak at 681 cm −1 is due to the metal–oxygen bond of Zn–O ( Fig.…”

Section: Resultsmentioning

confidence: 99%

CuI nanoparticle-immobilized on a hybrid material composed of IRMOF-3 and a sulfonamide-based porous organic polymer as an efficient nanocatalyst for one-pot synthesis of 2,4-diaryl-quinolines

2023

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Section: Resultsmentioning

confidence: 99%

CuI nanoparticle-immobilized on a hybrid material composed of IRMOF-3 and a sulfonamide-based porous organic polymer as an efficient nanocatalyst for one-pot synthesis of 2,4-diaryl-quinolines

2023

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“…47 By adopting postsynthetic modification (PSM) strategies, Sravani et al synthesized a series of PSM isoreticular metal− organic framework-3 (IRMOF-3) with various functional groups (Figure 17) for the recovery and detection of elemental uranium in aqueous solutions. 160 All of the MOFs exhibit excellent adsorption capacity toward U(VI) (>90%), and maximum uptake was observed at pH 6. The fluorescence sensing studies of U(VI) via IRMOF-3 and its PSM MOFs revealed high sensitivity and selectivity toward U(VI) over other competing rare earth metal ions, wherein IRMOF-GA displayed an impressive detection limit of 0.36 mg/L for U(VI).…”

Section: Mof-based Materials For Simultaneousmentioning

confidence: 95%

“… PSM of IRMOF-3 with various functional groups: (i) 2-pyridine carboxaldehyde; (ii) glutaric anhydride; (iii) sulfamic acid; and (iv) diphenylphosphonic chloride. Reproduced with permission from ref ( 160 ) Copyright 2021 The Royal Society of Chemistry. …”

Section: Mof-based Materials For Simultaneous Uranium Adsorption and ...mentioning

confidence: 99%

“…By adopting postsynthetic modification (PSM) strategies, Sravani et al synthesized a series of PSM isoreticular metal–organic framework-3 (IRMOF-3) with various functional groups (Figure ) for the recovery and detection of elemental uranium in aqueous solutions . All of the MOFs exhibit excellent adsorption capacity toward U(VI) (>90%), and maximum uptake was observed at pH 6.…”

Section: Mof-based Materials For Simultaneous Uranium Adsorption and ...mentioning

confidence: 99%

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Metal–Organic Framework-Based Materials for Adsorption and Detection of Uranium(VI) from Aqueous Solution

Liu

Mao

2022

ACS Omega

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The steady supply of uranium resources and the reduction or elimination of the ecological and human health hazards of wastewater containing uranium make the recovery and detection of uranium in water greatly important. Thus, the development of effective adsorbents and sensors has received growing attention. Metal–organic frameworks (MOFs) possessing fascinating characteristics such as high surface area, high porosity, adjustable pore size, and luminescence have been widely used for either uranium adsorption or sensing. Now pertinent research has transited slowly into simultaneous uranium adsorption and detection. In this review, the progress on the research of MOF-based materials used for both adsorption and detection of uranium in water is first summarized. The adsorption mechanisms between uranium species in aqueous solution and MOF-based materials are elaborated by macroscopic batch experiments combined with microscopic spectral technology. Moreover, the application of MOF-based materials as uranium sensors is focused on their typical structures, sensing mechanisms, and the representative examples. Furthermore, the bifunctional MOF-based materials used for simultaneous detection and adsorption of U(VI) from aqueous solution are introduced. Finally, we also discuss the challenges and perspectives of MOF-based materials for uranium adsorption and detection to provide a useful inspiration and significant reference for further developing better adsorbents and sensors for uranium containment and detection.

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“…In order to produce sustainable energy for the rapidly increasing population, nuclear power is considered as one of the best alternative energy sources with a negligible carbon footprint and is highly cost-efficient. − Uranium is the foremost important radionuclide used as fuel in a nuclear reactor . Uranium resources are limited in terrestrial ores than in the ocean; the total uranium reserves in seawater are nearly a thousand times higher than the identified terrestrial supply, reaching 4.5 billion metric tons.…”

Section: Introductionmentioning

confidence: 99%

Acid-Resistant Luminescent Si/UiO-66-Amidoxime (AO) Nanostructures for Rapid and Efficient Recovery of U(VI): Experimental and Theoretical Studies

Vaddanam,

Pamarthi,

Sengupta

et al. 2023

ACS Appl. Nano Mater.

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Despite the extremely favorable properties of metal–organic frameworks (MOFs) for multifunctional applications, the challenge to synthesize MOFs with high chemical, radiation, and mechanical stability still remains a major challenge. To circumvent this issue, we have developed a chemically, thermally, and radiation-stable silicon-shielded amidoxime-based nanocrystalline MOF, Si/UiO-66-AO, using UiO-66-NH2 and employed for the removal of U(VI) from both acidic and aqueous media (pH). The developed Si/UiO-66-AO MOF demonstrated a very facile, rapid, and efficient recovery of U(VI). The MOF exhibited an excellent sorption capacity from both aqueous (∼217 mg/g) and acidic media (∼65 mg/g) with a sorption efficiency of ∼70–75% (acidic and aqueous media), and capacities were fairly higher than that for other reported sorption materials. The synthesized MOF showed very rapid extraction ability (∼5 min) toward U(VI) from both acidic and aqueous media. Si/UiO-66-AO also showed an elevated extraction efficiency of 31.6 mg/g from simulated seawater, suggesting its significant potential for the extraction of U(VI) from seawater. The bonding between U(VI) and Si/UiO-66-AO was confirmed by X-ray photoelectron spectroscopy (XPS) and extended X-ray absorption fine structure (EXAFS) analysis. Density functional theory (DFT) calculations were performed to understand the nature of bonding of the functional moiety (amidoxime group) of the MOF with U(VI). Such high adsorption efficiency and efficient recovery of U(VI) by Si/UiO-66-AO is facilitated by complex formation through monodentate coordination of the oxime nitrogen atom of the amidoxime group with U(VI); hydrogen bonding plays an important role in stabilizing the same. Si/UiO-66-AO also exhibited green fluorescence with a quantum yield of ∼6%, highlighting its multifunctional potential. The present study provides a successful path for the development of acid-stable MOFs for fulfilling the needs of commercial applications for U(VI) recovery, especially in the plant-scale applications of nuclear field, seawater, as well as from environmental samples.

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Post synthetically modified IRMOF-3 for efficient recovery and selective sensing of U(vi) from aqueous medium

Abstract: Four IRMOFs following PSM strategy were prepared. The MOFs were characterized by different techniques and were investigated for U(vi) sorption. PSM MOFs displayed impressive fluorescent sensing and selectivity of U(vi) over competing metal ions.

Cited by 21 publications

References 58 publications

CuI nanoparticle-immobilized on a hybrid material composed of IRMOF-3 and a sulfonamide-based porous organic polymer as an efficient nanocatalyst for one-pot synthesis of 2,4-diaryl-quinolines

CuI nanoparticle-immobilized on a hybrid material composed of IRMOF-3 and a sulfonamide-based porous organic polymer as an efficient nanocatalyst for one-pot synthesis of 2,4-diaryl-quinolines

Metal–Organic Framework-Based Materials for Adsorption and Detection of Uranium(VI) from Aqueous Solution

Acid-Resistant Luminescent Si/UiO-66-Amidoxime (AO) Nanostructures for Rapid and Efficient Recovery of U(VI): Experimental and Theoretical Studies

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