A luminescent Zr-based metal–organic framework for sensing/capture of nitrobenzene and high-pressure separation of CH4/C2H6. Issue 46 (28th October 2015)

• Record Type: Journal Article
• Authors: Zou, Ruyi; Ren, Xueling; Huang, Fang; Zhao, Yifang; Liu, Jia; Jing, Xiping; Liao, Fuhui; Wang, Yinxia; Lin, Jianhua; Zou, Ruqiang; Sun, Junliang
• Is Part Of: Journal of materials chemistry. Volume 3:Issue 46(2015)
• Page Start: 23493
• Page End: 23500
• Publication Date: 2015-10-28
• Subjects: Materials -- Research -- Periodicals; Chemistry, Analytic -- Periodicals; Environmental sciences -- Research -- Periodicals; 543.0284
• DOI: 10.1039/c5ta03361f
• Languages: English
• ISSNs: 2050-7488

Abstract

Abstract : A novel LMOF based on a new tetracarboxylate ligand is reported with not only high performance of sensing and capture of nitrobenzene but also high-pressure separation of CH4 /C2 H6 . Abstract : We present a novel luminescent metal–organic framework (LMOF) based on zirconium metal oxide cluster Zr6 O8 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 C2 H6 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.