Radioactive iodine capture by metal organic frameworks in liquid and vapour phases: An experimental, kinetic and mechanistic study

Qasem, Khalil M.A.; Khan, Shabnam; Ahamad, M. Naqi; Saleh, Hayel N.; Ahmad, Musheer; Shahid, M.

doi:10.1016/j.jece.2021.106720

Cited by 35 publications

(15 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The N 2 adsorption isotherm (Figure S22) reveals that SM-1 is nonporous with a very low BET surface area of 0.0337 m 2 /g. 84 However, our designed MOF SM-1 shows a good response to iodine capture, even though it shows nonporous behavior. It is also reported in the literature that the adsorption capacity of iodine was not solely dependent on the porous nature of MOFs; in fact, the presence of abundant Ndonor sites also plays an effective role in improving the adsorption capacity of iodine.…”

Section: Resultsmentioning

confidence: 90%

See 1 more Smart Citation

Amine- and Imine-Functionalized Mn-Based MOF as an Unusual Turn-On and Turn-Off Sensor for d¹⁰ Heavy Metal Ions and an Efficient Adsorbent to Capture Iodine

Kamal

Khalid

Khan

et al. 2022

Crystal Growth & Design

Self Cite

View full text Add to dashboard Cite

In this work, a Mn-based metal−organic framework (MOF) {[H-Phen] 2 [Mn 3 (FDA) 4 (H 2 O) 2 ]•2H 2 O} n (SM-1) has been synthesized solvothermaly using 2,5-furandicarboxylic acid (2,5-FDA) as a linker and 4,7-phenanthroline (4,7-Phen) as a coligand. SM-1 was characterized using elemental analysis, Fourier transform infrared (FTIR) spectroscopy, powder X-ray diffraction (PXRD), and crystallographic studies. Single-crystal X-ray data reveal that the SM-1 framework is constituted by trinuclear Mn secondary building units (SBUs) as a dianion ([Mn 3 (COO) 6 ] 2− ), 2,5-FDA, and free 4,7-phenanthrolinium cation [H-Phen] + rings containing uncoordinated amino and imino moieties, which provide extra stability to the framework and feasible recognition sites to interact with analytes. Overall, the MOF is anionic in nature, which is counterbalanced by two protonated phenanthrolinium cations, thus giving rise to +2 oxidation states for all three Mn ions. Topological analysis shows that SM-1 has a {4 4 .6 2 } point symbol having a 4-c uninodal net with sql topology. SM-1 is an excellent fluorescent sensor for d 10 heavy metal ions in an aqueous environment. SM-1 developed as a highly sensitive sensor exhibits a fluorescence "turn-on" response for Ag + and Cd 2+ ions and a fluorescence "turn-off" response in the case of Hg 2+ ion with much lower limit of detection (LOD) values. Moreover, SM-1 application is not limited to only sensing, but it can also serve as an adsorbent to capture hazardous substances. Owing to the presence of π-electron-rich moieties and uncoordinated nitrogen atoms in the SM-1 framework, it is also explored for efficient iodine uptake. SM-1 captures iodine reversibly in cyclohexane solution with high adsorption capacity within 36 h. Further, a plausible mechanism of sensing and iodine adsorption was also discussed briefly. As far as we know, this is the first example of a Mn-based anionic MOF functioning as a fluorescent chemosensor to simultaneously detect d 10 heavy metal ions in water and as an adsorbent to trap iodine. Thus, metal− organic chemistry has been employed to develop multifunctional MOF material for the sensing of hazardous metal ions and as an adsorbent for the removal of toxic iodine.

show abstract

Section: Resultsmentioning

confidence: 90%

“…Moreover, we also carried out a BET analysis to ensure that SM-1 is nonporous. The N 2 adsorption isotherm (Figure S22) reveals that SM-1 is nonporous with a very low BET surface area of 0.0337 m 2 /g . However, our designed MOF SM-1 shows a good response to iodine capture, even though it shows nonporous behavior.…”

Section: Resultsmentioning

confidence: 99%

Amine- and Imine-Functionalized Mn-Based MOF as an Unusual Turn-On and Turn-Off Sensor for d¹⁰ Heavy Metal Ions and an Efficient Adsorbent to Capture Iodine

Kamal

Khalid

Khan

et al. 2022

Crystal Growth & Design

Self Cite

View full text Add to dashboard Cite

show abstract

“…17 Recently, MOFs have been shown to adsorb a wide range of radionuclides, 18,19 including barium, 20 uranium, 21 thorium, 22 iodine and triiodide (I 3 − ). 23 More recently, novel MOF materials have also been synthesised based on actinides metal clusters. 24,25 The application of MOFs for iodine adsorption has not been systematically reviewed previously, and herein, we discuss the latest progress on the adsorption and binding of iodine in robust MOF materials.…”

Section: Introductionmentioning

confidence: 99%

Adsorption of iodine in metal–organic framework materials

et al. 2022

View full text Add to dashboard Cite

show abstract

“…36 The presence of I 3 − indicates the presence of triiodide anions and suggests the formation of a charge transfer complex between the aromatic π-electrons from the MOF framework and iodide chains. 10,37 The Seebeck coefficient was determined by measuring the voltage drop across the samples with two probes whilst applying a temperature gradient, as shown in Figure 7. Good Ohmic contact was confirmed by obtaining linear current versus voltage response (cf.…”

Section: Resultsmentioning

confidence: 99%

Enhanced Thermoelectric Properties of a Semiconducting Two-Dimensional Metal–Organic Framework via Iodine Loading

Gonzalez-Juarez

Isaacs

Bradshaw

et al. 2023

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

We report the first result of a study in which molecular iodine has been incorporated via incipient wetness impregnation into the two-dimensional semiconducting metal−organic framework (MOF) Cu 3 (2,3,6,7,10,11-hexahydroxytriphenylene) 2 Cu 3 (HHTP) 2 to enhance its thermoelectric properties. A power factor of 0.757 μW m −1 K −2 for this MOF was obtained which demonstrates that this provides an effective route for the preparation of moderate-performance thermoelectric MOFs.

show abstract

Radioactive iodine capture by metal organic frameworks in liquid and vapour phases: An experimental, kinetic and mechanistic study

Cited by 35 publications

References 52 publications

Amine- and Imine-Functionalized Mn-Based MOF as an Unusual Turn-On and Turn-Off Sensor for d¹⁰ Heavy Metal Ions and an Efficient Adsorbent to Capture Iodine

Amine- and Imine-Functionalized Mn-Based MOF as an Unusual Turn-On and Turn-Off Sensor for d¹⁰ Heavy Metal Ions and an Efficient Adsorbent to Capture Iodine

Adsorption of iodine in metal–organic framework materials

Enhanced Thermoelectric Properties of a Semiconducting Two-Dimensional Metal–Organic Framework via Iodine Loading

Contact Info

Product

Resources

About

Radioactive iodine capture by metal organic frameworks in liquid and vapour phases: An experimental, kinetic and mechanistic study

Cited by 35 publications

References 52 publications

Amine- and Imine-Functionalized Mn-Based MOF as an Unusual Turn-On and Turn-Off Sensor for d10 Heavy Metal Ions and an Efficient Adsorbent to Capture Iodine

Amine- and Imine-Functionalized Mn-Based MOF as an Unusual Turn-On and Turn-Off Sensor for d10 Heavy Metal Ions and an Efficient Adsorbent to Capture Iodine

Adsorption of iodine in metal–organic framework materials

Enhanced Thermoelectric Properties of a Semiconducting Two-Dimensional Metal–Organic Framework via Iodine Loading

Contact Info

Product

Resources

About

Amine- and Imine-Functionalized Mn-Based MOF as an Unusual Turn-On and Turn-Off Sensor for d¹⁰ Heavy Metal Ions and an Efficient Adsorbent to Capture Iodine

Amine- and Imine-Functionalized Mn-Based MOF as an Unusual Turn-On and Turn-Off Sensor for d¹⁰ Heavy Metal Ions and an Efficient Adsorbent to Capture Iodine