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dc.contributor.authorHe, Linwei
dc.contributor.authorChen, Long
dc.contributor.authorDong, Xinglong
dc.contributor.authorZhang, Shitong
dc.contributor.authorZhang, Mingxing
dc.contributor.authorDai, Xing
dc.contributor.authorLiu, Xiajie
dc.contributor.authorLin, Peng
dc.contributor.authorLi, Kunfeng
dc.contributor.authorChen, Cailing
dc.contributor.authorPan, Tingting
dc.contributor.authorMa, Fuyin
dc.contributor.authorChen, Junchang
dc.contributor.authorYuan, Mengjia
dc.contributor.authorZhang, Yugang
dc.contributor.authorChen, Lei
dc.contributor.authorZhou, Ruhong
dc.contributor.authorHan, Yu
dc.contributor.authorChai, Zhifang
dc.contributor.authorWang, Shuao
dc.date.accessioned2021-01-17T06:16:13Z
dc.date.available2021-01-17T06:16:13Z
dc.date.issued2020-12
dc.date.submitted2020-05-02
dc.identifier.citationHe, L., Chen, L., Dong, X., Zhang, S., Zhang, M., Dai, X., … Wang, S. (2020). A nitrogen-rich covalent organic framework for simultaneous dynamic capture of iodine and methyl iodide. Chem. doi:10.1016/j.chempr.2020.11.024
dc.identifier.issn2451-9294
dc.identifier.issn2451-9308
dc.identifier.doi10.1016/j.chempr.2020.11.024
dc.identifier.urihttp://hdl.handle.net/10754/666911
dc.description.abstractThe capture of radioiodine species during nuclear fuel reprocessing and nuclear accidents is crucial for nuclear safety, environmental protection, and public health. Previously reported emerging materials for iodine uptake cannot outperform commercial zeolites and active carbon under the practical dynamic scenario. Herein, we present a new design philosophy aiming at significantly enhanced specific host-guest interactions and obtain a nitrogen-rich covalent organic framework material by introducing a bipyridine group into the building block for the simultaneous capture of both iodine gas through enhanced electron-pair effect and organic iodide via the methylation reaction. These efforts give rise to not only an ultrahigh uptake capacity of 6.0 g g−1 for iodine gas and a record-high value of 1.45 g g−1 for methyl iodide under static sorption conditions but also, more importantly, a record-high iodine loading capability under dynamic conditions demonstrated from the breakthrough experiments.
dc.description.sponsorshipThis work was supported by grants from the National Natural Science Foundation of China (21825601, 21790374, 21806117, and 21906116) and the National Key R&D Program of China (2018YFB1900203). We thank Prof. Gang Zhou (Hubei University of Technology) as well as Prof. Wei Liu and Prof. Litao Kang (Yantai University) for their support in DFT calculations and Raman measurements, respectively. S.W. conceived and supervised the project; L.H. L.C. and M.Z. performed the synthesis and characterization of the COF material; L.H. X.D. X.L. P.L. and X.L. designed and carried out the static and dynamic adsorption experiments; S.Z. and X.D. performed the computational studies; L.H. F.M. J.C. L.C. and M.Y. carried out the BET analyses and XPS spectra analyses; Y.Z. and C.C. performed the electron microscopy test; T.P. performed the regeneration experiments; S.W. L.H. L.C. Y.H. and X.D. prepared the manuscript. All authors discussed the paper. The authors declare no competing interests.
dc.publisherElsevier BV
dc.relation.urlhttps://linkinghub.elsevier.com/retrieve/pii/S2451929420306318
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Chem. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Chem, [, , (2020-12)] DOI: 10.1016/j.chempr.2020.11.024 . © 2020. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.titleA nitrogen-rich covalent organic framework for simultaneous dynamic capture of iodine and methyl iodide
dc.typeArticle
dc.contributor.departmentAdvanced Membranes and Porous Materials Research Center
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.contributor.departmentChemical Science
dc.contributor.departmentChemical Science Program
dc.identifier.journalChem
dc.rights.embargodate2021-12-01
dc.eprint.versionPost-print
dc.contributor.institutionState Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X) and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, China
dc.contributor.institutionEnvironmental Engineering Center, China Nuclear Power Technology Research Institute Co. Ltd., Shenzhen 518028, China
kaust.personDong, Xinglong
kaust.personChen, Cailing
kaust.personPan, Tingting
kaust.personHan, Yu
dc.date.accepted2020-11-24
dc.identifier.eid2-s2.0-85099158793
refterms.dateFOA2021-01-17T08:00:06Z


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