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A stable metal cluster-metalloporphyrin MOF with high capacity for cationic dye removalElectronic supplementary information (ESI) available: Crystal structure, formulae and size of dyes, TG, gas and dye adsorption, etc. CCDC 1812995. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c8ta06249h
A metalloporphyrin Cu 5 -cluster based MOF (metal-organic framework), [Cu 4.5 ((H 4 TZPP)(TZPP)Cl 2 )(H 2 O) 0.5 ]·CH 3 NH 2 CH 3 ·7EtOH·8H 2 O (LIFM-WZ-3) was synthesized from the tetrapodal ligand 5,10,15,20-tetrakis[4-(2,3,4,5-tetrazolyl)phenyl]porphyrin (H 6 TZPP) and copper chloride. LIFM-WZ-3...
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Main Authors: | , , , , , , , |
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Format: | Article |
Language: | English |
Online Access: | Get full text |
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Summary: | A metalloporphyrin Cu
5
-cluster based MOF (metal-organic framework), [Cu
4.5
((H
4
TZPP)(TZPP)Cl
2
)(H
2
O)
0.5
]·CH
3
NH
2
CH
3
·7EtOH·8H
2
O (LIFM-WZ-3) was synthesized from the tetrapodal ligand 5,10,15,20-tetrakis[4-(2,3,4,5-tetrazolyl)phenyl]porphyrin (H
6
TZPP) and copper chloride. LIFM-WZ-3 exhibits a rare 2D + 3D → 3D interpenetration topology, of which the frl-type 3D MOF and a layered 2D HOF (hydrogen bond organic framework) are intertwined, leading to an anionic framework with 1D spindle-like channels. Powder X-ray diffraction analysis reveals that the framework is stable in acid, base and various organic solvent environments. LIFM-WZ-3 exhibits moderately high separation performances for CO
2
/CH
4
, CO
2
/N
2
, C
3
H
6
/CH
4
, C
2
H
6
/CH
4
, and C
2
H
4
/CH
4
at room temperature. Specifically, the anionic framework in LIFM-WZ-3 containing dimethylamine cations can selectively adsorb cationic organic dyes from aqueous pollutants for recycle purpose. The high adsorption capacity for methylene-blue (MB
+
, 983 mg g
−1
) and crystal violet (CV
+
, 713.5 mg g
−1
) ranks the highest among those MOFs ever reported.
A super stable anionic MOF was built from Cu
5
-cluster and Cu-porphyrin to exhibit 2D-HOF/3D-MOF interpenetrated topology, showing high adsorption capacity for cationic dyes. |
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ISSN: | 2050-7488 2050-7496 |
DOI: | 10.1039/c8ta06249h |