Gene/Protein
Disease
Symptom
Drug
Enzyme
Compound
Pivot Concepts:
Gene/Protein
Disease
Symptom
Drug
Enzyme
Compound
Target Concepts:
Gene/Protein
Disease
Symptom
Drug
Enzyme
Compound
Query: UNIPROT:Q86TM3 (
cage
)
29,987
document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)
The
mercury
ions in waste water have threatened public health and environmental protection. In this sense, novel materials with outstanding performances for removal of Hg
2+
are imperative. Herein, we demonstrate a thiol-functionalized zirconium metal-organic
cage
(MOC-(SH)
2
) with excellent dispersion displays ideal properties for Hg
2+
capture. MOC-(SH)
2
exhibits the ability of removing Hg
2+
in aqueous solutions with a capacity of 335.9 mg
Hg2+
/g
MOC-(SH)2
, which surpasses that of classical Zr-based metal-organic framework Uio-66-(SH)
2
by 1.89 folds. The higher loading capacity of MOC-(SH)
2
is probably owing to the excellent dispersion of the discrete
cage
, which makes the accessibility of binding sites (thiol) easier. Additionally, 99.6% of Hg
2+
can be effectively captured by MOC-(SH)
2
with the concentration decreased from 5 to 0.02 ppm reaching the permissible limit for Hg
2+
, outperforming the performance of Uio-66-(SH)
2
. The excellent absorption property of MOC-(SH)
2
is also achieved in terms of superior selectivity under the presence of competitive metal ions. Meanwhile, the regenerated MOC-(SH)
2
can be reused without apparent loss of Hg
2+
loading capacity. UV-vis absorption spectra, IR spectra and emission spectra further verified the strong chemical affinity between Hg
2+
and the thiol of MOC-(SH)
2
. The study lays the groundwork for using Zr-MOCs in the removal of toxic metal ions and environmental sustainability.
...
PMID:A thiol-functionalized zirconium metal-organic cage for the effective removal of Hg
2+
from aqueous solution. 3324 90
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