Effects of -NO2 and -NH2 functional groups in mixed-linker Zr-based MOFs on gas adsorption of CO2 and CH4

Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review

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Author(s)

  • Zana Hassan Rada
  • Hussein Rasool Abid
  • Hongqi Sun
  • Jiaye Li
  • Yingdian He
  • Shaomin Liu
  • Shaobin Wang

Related Research Unit(s)

Detail(s)

Original languageEnglish
Pages (from-to)160-167
Journal / PublicationProgress in Natural Science: Materials International
Volume28
Issue number2
Online published13 Mar 2018
Publication statusPublished - Apr 2018

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Publisher's Copyright Statement
  • Rada, Z. H., Abid, H. R., Sun, H., Shang, J., Li, J., He, Y., ... Wang, S. (2018). Effects of -NO2 and -NH2 functional groups in mixed-linker Zr-based MOFs on gas adsorption of CO2 and CH4. Progress in Natural Science: Materials International, 28(2), 160-167. DOI: 10.1016/j.pnsc.2018.01.016. This full text is made available under CC-BY-NC-ND 4.0. https://creativecommons.org/licenses/by-nc-nd/4.0/
Link to Scopus https://www.scopus.com/record/display.uri?eid=2-s2.0-85043461891&origin=recordpage
Permanent Link https://scholars.cityu.edu.hk/en/publications/publication(1693501d-205d-46fe-ad00-fc4e13d74c34).html

Abstract

This study was undertaken to evaluate the effects of mixing BDC-NO2 and BDC-NH2 linkers in the synthesis of Zr-based metal organic frameworks (Zr-MOFs) on their adsorption and separation of CO2 and CH4. UiO-66 with single or binary -NO2 and -NH2 samples were synthesized under solvothermal conditions and activated by solvent exchanging using methanol. Structural analyses of the materials were conducted using FTIR, XRD, TGA, SEM, 1HNMR and N2 adsorption/desorption techniques and adsorption of CO2 and CH4 at high pressures and different temperatures (273 and 298 K) was investigated. It was found that UiO-66-NH2 exhibited higher CO2 and CH4 adsorption capacities than those of UiO-66-NO2. Addition of -NH2 functional group in UiO-66-NO2 could enhance CO2 and CH4 adsorption due to the extra CO2 adsorption sites of -NH2 functional groups. Addition of -NO2 functional group to UiO-66-NH2 at a low loading could also increase CO2 and CH4 adsorption, however, a high loading of NO2 functional group to UiO-66-NH2 would result in decreased adsorption.

Research Area(s)

  • Carbon dioxide, Methane adsorption, Multi-linker MOFs, UiO-66-NH2, UiO-66–NO2

Citation Format(s)

[ RIS ] [ BibTeX ]

Effects of -NO2 and -NH2 functional groups in mixed-linker Zr-based MOFs on gas adsorption of CO2 and CH4. / Rada, Zana Hassan; Abid, Hussein Rasool; Sun, Hongqi et al.

In: Progress in Natural Science: Materials International, Vol. 28, No. 2, 04.2018, p. 160-167.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review

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