期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 3, 期 46, 页码 23493-23500出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ta03361f
关键词
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资金
- National Natural Science Foundation of China [51322205, 21371014]
- New Star Program of Beijing Committee of Science and Technology [2012004]
We present a novel luminescent metal-organic framework (LMOF) based on zirconium metal oxide cluster Zr6O8 bonding with a new tetratopic linker 1,3,6,8-tetrakis(4'-carboxy[1,1'-biphenyl]-4-yl-)pyrene. This (4,12)-connected ftw-a-type net is composed of a large solvent-accessible volume of 79.5% volume per unit cell with a BET surface area up to 3540.5 m(2) g(-1). The activated LMOF exhibits an unprecedented fluorescence quenching effect triggered by nitrobenzene (NB) with quench percentage up to 99.5%, and could reversibly take up 14.7 mmol g(-1) of NB under atmospheric conditions. The breakthrough curve of CH4 and C2H6 at 298 K and 2.0 MPa demonstrates that the activated LMOF has high-performance selective adsorption for CH4 with a selectivity of 25.45, which is an unusually high value as compared with those of reported materials.
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