ZIF-Derived Nitrogen-Doped Porous Carbons for Xe Adsorption and Separation

ZIF-Derived Nitrogen-Doped Porous Carbons for Xe Adsorption and Separation

Currently, finding high capacity adsorbents with large selectivity to capture Xe is still a great challenge. In this work, nitrogen-doped porous carbons were prepared by programmable temperature carbonization of zeolitic imidazolate framework-8 (ZIF-8) and ZIF-8/xylitol composite precursors and the...

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Main Authors: Zhong, Shan, Wang, Qian, Cao, Dapeng
Format: Online
Language:English
Published: Nature Publishing Group 2016
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4756705/
id pubmed-4756705
recordtype oai_dc
spelling pubmed-47567052016-02-25 ZIF-Derived Nitrogen-Doped Porous Carbons for Xe Adsorption and Separation Zhong, Shan Wang, Qian Cao, Dapeng Article Currently, finding high capacity adsorbents with large selectivity to capture Xe is still a great challenge. In this work, nitrogen-doped porous carbons were prepared by programmable temperature carbonization of zeolitic imidazolate framework-8 (ZIF-8) and ZIF-8/xylitol composite precursors and the resultant samples are marked as Carbon-Z and Carbon-ZX, respectively. Further adsorption measurements indicate that ZIF-derived nitrogen-doped Carbon-ZX exhibits extremely high Xe capacity of 4.42 mmol g−1 at 298 K and 1 bar, which is higher than almost all other pristine MOFs such as CuBTC, Ni/DOBDC, MOF-5 and Al-MIL-53, and even more than three times of the matrix ZIF-8 at similar conditions. Moreover, Carbon-ZX also shows the highest Xe/N2 selectivity about ~120, which is much larger than all other reported MOFs. These remarkable features illustrate that ZIF-derived nitrogen-doped porous carbon is an excellent adsorbent for Xe adsorption and separation at room temperature. Nature Publishing Group 2016-02-17 /pmc/articles/PMC4756705/ /pubmed/26883471 http://dx.doi.org/10.1038/srep21295 Text en Copyright © 2016, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
repository_type Open Access Journal
institution_category Foreign Institution
institution US National Center for Biotechnology Information
building NCBI PubMed
collection Online Access
language English
format Online
author Zhong, Shan
Wang, Qian
Cao, Dapeng
spellingShingle Zhong, Shan
Wang, Qian
Cao, Dapeng
ZIF-Derived Nitrogen-Doped Porous Carbons for Xe Adsorption and Separation
author_facet Zhong, Shan
Wang, Qian
Cao, Dapeng
author_sort Zhong, Shan
title ZIF-Derived Nitrogen-Doped Porous Carbons for Xe Adsorption and Separation
title_short ZIF-Derived Nitrogen-Doped Porous Carbons for Xe Adsorption and Separation
title_full ZIF-Derived Nitrogen-Doped Porous Carbons for Xe Adsorption and Separation
title_fullStr ZIF-Derived Nitrogen-Doped Porous Carbons for Xe Adsorption and Separation
title_full_unstemmed ZIF-Derived Nitrogen-Doped Porous Carbons for Xe Adsorption and Separation
title_sort zif-derived nitrogen-doped porous carbons for xe adsorption and separation
description Currently, finding high capacity adsorbents with large selectivity to capture Xe is still a great challenge. In this work, nitrogen-doped porous carbons were prepared by programmable temperature carbonization of zeolitic imidazolate framework-8 (ZIF-8) and ZIF-8/xylitol composite precursors and the resultant samples are marked as Carbon-Z and Carbon-ZX, respectively. Further adsorption measurements indicate that ZIF-derived nitrogen-doped Carbon-ZX exhibits extremely high Xe capacity of 4.42 mmol g−1 at 298 K and 1 bar, which is higher than almost all other pristine MOFs such as CuBTC, Ni/DOBDC, MOF-5 and Al-MIL-53, and even more than three times of the matrix ZIF-8 at similar conditions. Moreover, Carbon-ZX also shows the highest Xe/N2 selectivity about ~120, which is much larger than all other reported MOFs. These remarkable features illustrate that ZIF-derived nitrogen-doped porous carbon is an excellent adsorbent for Xe adsorption and separation at room temperature.
publisher Nature Publishing Group
publishDate 2016
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4756705/
_version_ 1613539785009266688

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