Journal
RSC ADVANCES
Volume 5, Issue 88, Pages 72107-72112Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ra09897a
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Funding
- National Key Basic Research Program of China (973) [2013CB733503]
- Natural Science Foundation of China [21136001, 21276008]
- Beijing Higher Education Young Elite Teacher Project [YETP0486]
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Water stable Zr-based metal-organic frameworks (MOFs) with different functional groups were used for selective removal of Cu2+ over Ni2+ from aqueous solution. Due to the unique chelation effect of two carboxyl groups on the adjacent organic ligand as well as the Jahn-Teller effect, UiO-66(Zr)-2COOH exhibits the highest selectivity (up to about 27) for Cu2+/Ni2+ in aqueous solution among the reported adsorbents as far as we know. In addition, the removal process is fast with less than 60 min for equilibration, and the stability and regenerability are good. These results may be helpful not only for the efficient treatment of wastewater containing heavy transition metal ions, but also for metal enrichment and recycling.
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