Jump to main content
Jump to site search
PLANNED MAINTENANCE Close the message box

Scheduled maintenance upgrade on Thursday 4th of May 2017 from 8.00am to 9.00am (BST).

During this time our websites will be offline temporarily. If you have any questions please use the feedback button on this page. We apologise for any inconvenience this might cause and thank you for your patience.


Issue 6, 2013
Previous Article Next Article

Highly porous and stable metal–organic frameworks for uranium extraction

Author affiliations

Abstract

Three metal–organic frameworks (MOFs) of the UiO-68 network topology were prepared using the amino-TPDC or TPDC bridging ligands containing orthogonal phosphorylurea groups (TPDC is p,p′-terphenyldicarboxylic acid), and investigated for sorption of uranium from water and artificial seawater. The stable and porous phosphorylurea-derived MOFs were shown to be highly efficient in sorbing uranyl ions, with saturation sorption capacities as high as 217 mg U g−1 which is equivalent to binding one uranyl ion for every two sorbent groups. Coordination modes between uranyl groups and simplified phosphorylurea motifs were investigated by DFT calculations, revealing a thermodynamically favorable monodentate binding of two phosphorylurea ligands to one uranyl ion. Convergent orientation of phosphorylurea groups at appropriate distances inside the MOF cavities is believed to facilitate their cooperative binding with uranyl ions. This work represents the first application of MOFs as novel sorbents to extract actinide elements from aqueous media.

Graphical abstract: Highly porous and stable metal–organic frameworks for uranium extraction

Back to tab navigation
Please wait while Download options loads

Supplementary files

Publication details

The article was received on 26 Jan 2013, accepted on 03 Apr 2013 and first published on 04 Apr 2013


Article type: Edge Article
DOI: 10.1039/C3SC50230A
Citation: Chem. Sci., 2013,4, 2396-2402
  •   Request permissions

    Highly porous and stable metal–organic frameworks for uranium extraction

    M. Carboni, C. W. Abney, S. Liu and W. Lin, Chem. Sci., 2013, 4, 2396
    DOI: 10.1039/C3SC50230A

Search articles by author