Jump to main content
Jump to site search

Issue 11, 2017
Previous Article Next Article

A functionalized metal–organic framework decorated with O groups showing excellent performance for lead(II) removal from aqueous solution

Author affiliations

Abstract

Heavy metal ions are highly toxic and widely spread as environmental pollutants. New strategies are being developed to efficiently remove these toxic ions. Herein, we use the intrinsic advantages of metal–organic frameworks (MOFs) and develop a porous Zn(II)-based MOF decorated with O groups for the removal of Pb2+. Benefiting from its multiple porosity, sufficient adsorption sites and strong affinity, the activated MOF material exhibits an ultrahigh Pb2+ uptake capacity (616.64 mg g−1), surpassing all those of reported MOF adsorbents. Moreover, it can selectively capture Pb2+ with high efficiency (>99.27%) against background ions. Even in the presence of a high concentration of competitive ions, such as Ca2+ or Mg2+, effective removal (>99.21%) can also be achieved in a short time. The excellent removal performance demonstrates the strong electrostatic attraction and coordination interaction between the highly accessible O groups and Pb2+. The possible adsorption mechanism was systematically verified by zeta potential, FT-IR and XPS studies. Our work reveals the enormous potential of functionalized MOFs as an appealing platform to construct sorbent materials.

Graphical abstract: A functionalized metal–organic framework decorated with O− groups showing excellent performance for lead(ii) removal from aqueous solution

Back to tab navigation

Supplementary files

Publication details

The article was received on 29 Jul 2017, accepted on 18 Sep 2017 and first published on 18 Sep 2017


Article type: Edge Article
DOI: 10.1039/C7SC03308G
Citation: Chem. Sci., 2017,8, 7611-7619
  • Open access: Creative Commons BY license
  •   Request permissions

    A functionalized metal–organic framework decorated with O groups showing excellent performance for lead(II) removal from aqueous solution

    C. Yu, Z. Shao and H. Hou, Chem. Sci., 2017, 8, 7611
    DOI: 10.1039/C7SC03308G

    This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. Material from this article can be used in other publications provided that the correct acknowledgement is given with the reproduced material.

    Reproduced material should be attributed as follows:

    • For reproduction of material from NJC:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the Centre National de la Recherche Scientifique (CNRS) and the RSC.
    • For reproduction of material from PCCP:
      [Original citation] - Published by the PCCP Owner Societies.
    • For reproduction of material from PPS:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the European Society for Photobiology, the European Photochemistry Association, and RSC.
    • For reproduction of material from all other RSC journals:
      [Original citation] - Published by The Royal Society of Chemistry.

    Information about reproducing material from RSC articles with different licences is available on our Permission Requests page.

Search articles by author

Spotlight

Advertisements