The Impact of Structural Defects on Iodine Adsorption in UiO-66
Radioactive I<sub>2</sub> (iodine) produced as a by-product of nuclear fission poses a risk to public health if released into the environment, and it is thus vital to develop materials that can capture I<sub>2</sub> vapour. Materials designed for the capture and storage of I&...
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| Format: | Article |
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MDPI AG
2021-04-01
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| Series: | Chemistry |
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| Online Access: | https://www.mdpi.com/2624-8549/3/2/37 |
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| author | John Maddock Xinchen Kang Lifei Liu Buxing Han Sihai Yang Martin Schröder |
| author_facet | John Maddock Xinchen Kang Lifei Liu Buxing Han Sihai Yang Martin Schröder |
| author_sort | John Maddock |
| collection | DOAJ |
| description | Radioactive I<sub>2</sub> (iodine) produced as a by-product of nuclear fission poses a risk to public health if released into the environment, and it is thus vital to develop materials that can capture I<sub>2</sub> vapour. Materials designed for the capture and storage of I<sub>2</sub> must have a high uptake capacity and be stable for long-term storage due the long half-life of <sup>129</sup>I. UiO-66 is a highly stable and readily tuneable metal-organic framework (MOF) into which defect sites can be introduced. Here, a defective form of UiO-66 (UiO-66-FA) was synthesised and the presence of missing cluster moieties confirmed using confocal fluorescence microscopy and gas sorption measurements. The uptake of I<sub>2</sub> vapour in UiO-66-FA was measured using thermal gravimetric analysis coupled mass spectrometry (TGA-MS) to be 2.25 g g<sup>−1</sup>, almost twice that (1.17 g g<sup>−1</sup>) of the pristine UiO-66. This study will inspire the design of new efficient I<sub>2</sub> stores based upon MOFs incorporating structural defects. |
| first_indexed | 2024-03-10T12:23:50Z |
| format | Article |
| id | doaj.art-1bf6c447bacb4a3eb31f10fdc40d8e03 |
| institution | Directory Open Access Journal |
| issn | 2624-8549 |
| language | English |
| last_indexed | 2024-03-10T12:23:50Z |
| publishDate | 2021-04-01 |
| publisher | MDPI AG |
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| series | Chemistry |
| spelling | doaj.art-1bf6c447bacb4a3eb31f10fdc40d8e032023-11-21T15:10:10ZengMDPI AGChemistry2624-85492021-04-013252553110.3390/chemistry3020037The Impact of Structural Defects on Iodine Adsorption in UiO-66John Maddock0Xinchen Kang1Lifei Liu2Buxing Han3Sihai Yang4Martin Schröder5Department of Chemistry, University of Manchester, Manchester M13 9PL, UKDepartment of Chemistry, University of Manchester, Manchester M13 9PL, UKBeijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Science, Beijing 100190, ChinaBeijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Science, Beijing 100190, ChinaDepartment of Chemistry, University of Manchester, Manchester M13 9PL, UKDepartment of Chemistry, University of Manchester, Manchester M13 9PL, UKRadioactive I<sub>2</sub> (iodine) produced as a by-product of nuclear fission poses a risk to public health if released into the environment, and it is thus vital to develop materials that can capture I<sub>2</sub> vapour. Materials designed for the capture and storage of I<sub>2</sub> must have a high uptake capacity and be stable for long-term storage due the long half-life of <sup>129</sup>I. UiO-66 is a highly stable and readily tuneable metal-organic framework (MOF) into which defect sites can be introduced. Here, a defective form of UiO-66 (UiO-66-FA) was synthesised and the presence of missing cluster moieties confirmed using confocal fluorescence microscopy and gas sorption measurements. The uptake of I<sub>2</sub> vapour in UiO-66-FA was measured using thermal gravimetric analysis coupled mass spectrometry (TGA-MS) to be 2.25 g g<sup>−1</sup>, almost twice that (1.17 g g<sup>−1</sup>) of the pristine UiO-66. This study will inspire the design of new efficient I<sub>2</sub> stores based upon MOFs incorporating structural defects.https://www.mdpi.com/2624-8549/3/2/37metal organic frameworksdefectiodine adsorptionUiO-66 |
| spellingShingle | John Maddock Xinchen Kang Lifei Liu Buxing Han Sihai Yang Martin Schröder The Impact of Structural Defects on Iodine Adsorption in UiO-66 Chemistry metal organic frameworks defect iodine adsorption UiO-66 |
| title | The Impact of Structural Defects on Iodine Adsorption in UiO-66 |
| title_full | The Impact of Structural Defects on Iodine Adsorption in UiO-66 |
| title_fullStr | The Impact of Structural Defects on Iodine Adsorption in UiO-66 |
| title_full_unstemmed | The Impact of Structural Defects on Iodine Adsorption in UiO-66 |
| title_short | The Impact of Structural Defects on Iodine Adsorption in UiO-66 |
| title_sort | impact of structural defects on iodine adsorption in uio 66 |
| topic | metal organic frameworks defect iodine adsorption UiO-66 |
| url | https://www.mdpi.com/2624-8549/3/2/37 |
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