Functionalized metal organic frameworks for effective capture of radioactive organic iodides

Handle URI:
http://hdl.handle.net/10754/625642
Title:
Functionalized metal organic frameworks for effective capture of radioactive organic iodides
Authors:
Li, Baiyan; Dong, Xinglong ( 0000-0001-6478-8819 ) ; Wang, Hao; Ma, Dingxuan; Tan, Kui; Shi, Zhan; Chabal, Yves J.; Han, Yu ( 0000-0003-1462-1118 ) ; Li, Jing ( 0000-0001-7792-4322 )
Abstract:
Highly efficient capture of radioactive organic iodides (ROIs) from off-gas mixtures remains a substantial challenge for nuclear waste treatment. Current materials utilized for ROI sequestration suffer from low capacity, high cost (e.g. use of noble metals), and poor recyclability. Recently, we have developed a new strategy to tackle this challenge by functionalizing MOF materials with tertiary amines to create molecular traps for the effective capture and removal of ROIs (e.g. radioactive methyl iodide) from nuclear wastes. To further enhance the uptake capacity and performance of CH3I capture by ROI molecular traps, herein, we carry out a systematic study to investigate the effect of different amine molecules on ROI capture. The results demonstrate a record-high CH3I saturation uptake capacity of 80% for MIL-101-Cr-DMEDA at 150 °C, which is 5.3 times that of Ag0@MOR (15 wt%), a leading adsorbent material for capturing ROIs during nuclear fuel reprocessing. Furthermore, the CH3I decontamination factors (DFs) for MIL-101-Cr-DMEDA are as high as 5000 under simulated reprocessing conditions, largely exceeding that of facility regulatory requirements (DF = 3000). In addition, MIL-101-Cr-DMEDA can be recycled without loss of capacity, illustrating yet another advantage compared to known industrial adsorbents, which are typically of a
KAUST Department:
Advanced Membranes and Porous Materials Research Center; Physical Sciences and Engineering (PSE) Division
Citation:
Li B, Dong X, Wang H, Ma D, Tan K, et al. (2017) Functionalized metal organic frameworks for effective capture of radioactive organic iodides. Faraday Discuss 201: 47–61. Available: http://dx.doi.org/10.1039/c7fd00013h.
Publisher:
Royal Society of Chemistry (RSC)
Journal:
Faraday Discuss.
Issue Date:
27-Jun-2017
DOI:
10.1039/c7fd00013h
Type:
Article
ISSN:
1359-6640; 1364-5498
Sponsors:
Financial support from the Materials Chemistry Program, Office of Science – Basic Energy Sciences of the U.S. Department of Energy through Grant No. DE-FG02-08ER-46491 is gratefully acknowledged. We would also like to acknowledge Micromeritics Instrument Corp. for the donation of a new 3Flex system through its Instrument Grant program.
Additional Links:
http://pubs.rsc.org/en/Content/ArticleLanding/2017/FD/C7FD00013H#!divAbstract
Appears in Collections:
Articles; Advanced Membranes and Porous Materials Research Center; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorLi, Baiyanen
dc.contributor.authorDong, Xinglongen
dc.contributor.authorWang, Haoen
dc.contributor.authorMa, Dingxuanen
dc.contributor.authorTan, Kuien
dc.contributor.authorShi, Zhanen
dc.contributor.authorChabal, Yves J.en
dc.contributor.authorHan, Yuen
dc.contributor.authorLi, Jingen
dc.date.accessioned2017-10-03T12:49:31Z-
dc.date.available2017-10-03T12:49:31Z-
dc.date.issued2017-06-27en
dc.identifier.citationLi B, Dong X, Wang H, Ma D, Tan K, et al. (2017) Functionalized metal organic frameworks for effective capture of radioactive organic iodides. Faraday Discuss 201: 47–61. Available: http://dx.doi.org/10.1039/c7fd00013h.en
dc.identifier.issn1359-6640en
dc.identifier.issn1364-5498en
dc.identifier.doi10.1039/c7fd00013hen
dc.identifier.urihttp://hdl.handle.net/10754/625642-
dc.description.abstractHighly efficient capture of radioactive organic iodides (ROIs) from off-gas mixtures remains a substantial challenge for nuclear waste treatment. Current materials utilized for ROI sequestration suffer from low capacity, high cost (e.g. use of noble metals), and poor recyclability. Recently, we have developed a new strategy to tackle this challenge by functionalizing MOF materials with tertiary amines to create molecular traps for the effective capture and removal of ROIs (e.g. radioactive methyl iodide) from nuclear wastes. To further enhance the uptake capacity and performance of CH3I capture by ROI molecular traps, herein, we carry out a systematic study to investigate the effect of different amine molecules on ROI capture. The results demonstrate a record-high CH3I saturation uptake capacity of 80% for MIL-101-Cr-DMEDA at 150 °C, which is 5.3 times that of Ag0@MOR (15 wt%), a leading adsorbent material for capturing ROIs during nuclear fuel reprocessing. Furthermore, the CH3I decontamination factors (DFs) for MIL-101-Cr-DMEDA are as high as 5000 under simulated reprocessing conditions, largely exceeding that of facility regulatory requirements (DF = 3000). In addition, MIL-101-Cr-DMEDA can be recycled without loss of capacity, illustrating yet another advantage compared to known industrial adsorbents, which are typically of aen
dc.description.sponsorshipFinancial support from the Materials Chemistry Program, Office of Science – Basic Energy Sciences of the U.S. Department of Energy through Grant No. DE-FG02-08ER-46491 is gratefully acknowledged. We would also like to acknowledge Micromeritics Instrument Corp. for the donation of a new 3Flex system through its Instrument Grant program.en
dc.publisherRoyal Society of Chemistry (RSC)en
dc.relation.urlhttp://pubs.rsc.org/en/Content/ArticleLanding/2017/FD/C7FD00013H#!divAbstracten
dc.titleFunctionalized metal organic frameworks for effective capture of radioactive organic iodidesen
dc.typeArticleen
dc.contributor.departmentAdvanced Membranes and Porous Materials Research Centeren
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalFaraday Discuss.en
dc.contributor.institutionDepartment of Chemistry and Chemical Biology, Rutgers University, Piscataway, NJ 08854, USA. Jingli@rutgers.edu.en
dc.contributor.institutionState Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, People's Republic of China.en
dc.contributor.institutionDepartment of Materials Science and Engineering, University of Texas at Dallas, 800 W Campbell Rd., Richardson, TX 75080, USA.en
kaust.authorDong, Xinglongen
kaust.authorHan, Yuen
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