Moisture-Stable Zn(II) Metal-Organic Framework as a Multifunctional Platform for Highly Efficient CO2 Capture and Nitro Pollutant Vapor Detection

被引:86
作者
Chen, Di-Ming [1 ]
Tian, Jia-Yue [1 ]
Chen, Min [1 ]
Liu, Chun-Sen [1 ]
Du, Miao [1 ]
机构
[1] Zhengzhou Univ Light Ind, Henan Prov Key Lab Surface & Interface Sci, Zhengzhou 450002, Peoples R China
基金
中国国家自然科学基金;
关键词
metal-organic framework; moisture stability; dynamic structure; selective CO2 sorption; GCMC simulation; nitrobenzene vapor detection; CARBON-DIOXIDE CAPTURE; SELECTIVE DETECTION; CRYSTAL-STRUCTURES; GAS SORPTION; ADSORPTION; FUNCTIONALIZATION; WATER; MOFS; POLYCATENATION; STABILITY;
D O I
10.1021/acsami.6b04611
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
A moisture-stable three-dimensional (3D) metal organic framework (MOP), {(Me2NH2)[Zn-2(bpydb)(2)(ATZ)RDMA)(NMF)(2)](n) (1, where bpydb = 4,4'-(4,4'-bipyridine-2,6-diyl)dibenzoate, ATZ = deprotonated 5-aminotetrazole, DMA = N,N-dimethylacetamide, and NMF = N-methylformamide), with uncoordinated N-donor sites and charged framework skeleton was fabricated. This MOF exhibits interesting structural dynamic upon CO2 sorption at 195 K and high CO2/N-2 (127) and CO2/CH4 (131) sorption selectivity at 298 K and 1 bar. Particularly, its CO2/CH4 selectivity is among the highest MOFs for selective CO2 separation. The results of Grand Canonical Monte Carlo (GCMC) simulation indicate that the polar framework contributes to the strong framework-CO2 binding at zero loading, and the tetrazole pillar contributes to the high CO2 uptake capacity at high loading. Furthermore, the solvent-responsive luminescent properties of 1 indicate that it could be utilized as a fluorescent sensor to detect trace amounts of nitrobenzene in both solvent and vapor systems.
引用
收藏
页码:18043 / 18050
页数:8
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