Adsorption behavior and structural transformation mechanism of ZIF-8 material on iodine vapor with varying particle sizes
Abstract Developing effective iodine capture technologies is critical for both nuclear safety and environmental protection. This study investigates the iodine adsorption properties of ZIF-8, a metal–organic framework (MOF). ZIF-8 samples with varying particle sizes (∼50 nm, 90 nm, 150 nm, and 8 μm)...
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| Format: | Article |
| Language: | English |
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Springer
2025-07-01
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| Series: | Discover Applied Sciences |
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| Online Access: | https://doi.org/10.1007/s42452-025-07300-x |
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| author | Tian Lan Xiaofan Ding Songtao Xiao Zhongwei Yuan Taihong Yan Qi Chen Tianchi Li Weifang Zheng |
| author_facet | Tian Lan Xiaofan Ding Songtao Xiao Zhongwei Yuan Taihong Yan Qi Chen Tianchi Li Weifang Zheng |
| author_sort | Tian Lan |
| collection | DOAJ |
| description | Abstract Developing effective iodine capture technologies is critical for both nuclear safety and environmental protection. This study investigates the iodine adsorption properties of ZIF-8, a metal–organic framework (MOF). ZIF-8 samples with varying particle sizes (∼50 nm, 90 nm, 150 nm, and 8 μm) were synthesized and tested for iodine vapor adsorption at 80 °C. Iodine uptake continuously increased with time, reaching ~ 3500 mg/g after 24 h without reaching equilibrium, with no significant dependence on particle size. Structural changes in ZIF-8 were observed, as iodine accumulation led to the breakdown of the framework into an amorphous gel-like substance, representing a previously unreported phase transformation. SEM and XRD characterization confirmed the collapse of the crystalline structure after iodine loading. These results indicate that iodine adsorption in ZIF-8 involves strong chemisorption in addition to physical uptake, causing irreversible framework transformations. This work highlights the influence of particle size and provides important insights for using ZIF-8 in effective radioactive iodine capture. |
| format | Article |
| id | doaj-art-7f490a4d887f4a2fa9d6cc2acdedc28e |
| institution | Kabale University |
| issn | 3004-9261 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Springer |
| record_format | Article |
| series | Discover Applied Sciences |
| spelling | doaj-art-7f490a4d887f4a2fa9d6cc2acdedc28e2025-08-20T03:45:31ZengSpringerDiscover Applied Sciences3004-92612025-07-017711310.1007/s42452-025-07300-xAdsorption behavior and structural transformation mechanism of ZIF-8 material on iodine vapor with varying particle sizesTian Lan0Xiaofan Ding1Songtao Xiao2Zhongwei Yuan3Taihong Yan4Qi Chen5Tianchi Li6Weifang Zheng7China Institute of Atomic EnergyChina Institute of Atomic EnergyChina Institute of Atomic EnergyChina Institute of Atomic EnergyChina Institute of Atomic EnergyChina Institute of Atomic EnergyChina Institute of Atomic EnergyChina Institute of Atomic EnergyAbstract Developing effective iodine capture technologies is critical for both nuclear safety and environmental protection. This study investigates the iodine adsorption properties of ZIF-8, a metal–organic framework (MOF). ZIF-8 samples with varying particle sizes (∼50 nm, 90 nm, 150 nm, and 8 μm) were synthesized and tested for iodine vapor adsorption at 80 °C. Iodine uptake continuously increased with time, reaching ~ 3500 mg/g after 24 h without reaching equilibrium, with no significant dependence on particle size. Structural changes in ZIF-8 were observed, as iodine accumulation led to the breakdown of the framework into an amorphous gel-like substance, representing a previously unreported phase transformation. SEM and XRD characterization confirmed the collapse of the crystalline structure after iodine loading. These results indicate that iodine adsorption in ZIF-8 involves strong chemisorption in addition to physical uptake, causing irreversible framework transformations. This work highlights the influence of particle size and provides important insights for using ZIF-8 in effective radioactive iodine capture.https://doi.org/10.1007/s42452-025-07300-xNuclear fuel reprocessingExhaust gas129IMOFsZIF-8Adsorption |
| spellingShingle | Tian Lan Xiaofan Ding Songtao Xiao Zhongwei Yuan Taihong Yan Qi Chen Tianchi Li Weifang Zheng Adsorption behavior and structural transformation mechanism of ZIF-8 material on iodine vapor with varying particle sizes Discover Applied Sciences Nuclear fuel reprocessing Exhaust gas 129I MOFs ZIF-8 Adsorption |
| title | Adsorption behavior and structural transformation mechanism of ZIF-8 material on iodine vapor with varying particle sizes |
| title_full | Adsorption behavior and structural transformation mechanism of ZIF-8 material on iodine vapor with varying particle sizes |
| title_fullStr | Adsorption behavior and structural transformation mechanism of ZIF-8 material on iodine vapor with varying particle sizes |
| title_full_unstemmed | Adsorption behavior and structural transformation mechanism of ZIF-8 material on iodine vapor with varying particle sizes |
| title_short | Adsorption behavior and structural transformation mechanism of ZIF-8 material on iodine vapor with varying particle sizes |
| title_sort | adsorption behavior and structural transformation mechanism of zif 8 material on iodine vapor with varying particle sizes |
| topic | Nuclear fuel reprocessing Exhaust gas 129I MOFs ZIF-8 Adsorption |
| url | https://doi.org/10.1007/s42452-025-07300-x |
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