Selective removal of transition metal ions from aqueous solution by metal–organic frameworks
作者： Yutian Zhang , Xudong Zhao , Hongliang Huang , Zhengjie Li , Dahuan Liu
DOI: 10.1039/C5RA09897A
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摘要: 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 two carboxyl on adjacent organic ligand as well Jahn–Teller effect, UiO-66(Zr)–2COOH exhibits highest selectivity (up about 27) Cu2+/Ni2+ in solution among reported adsorbents far we know. In addition, process is fast less than 60 min equilibration, and stability regenerability are good. These results may be helpful not only efficient treatment wastewater containing heavy transition metal ions, but also enrichment recycling.
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