| Title: | Zirconium-based metal-organic framework gels for selective luminescence sensing |
| Author(s): | Sun S; Wei C; Xiao Y; Li G; Zhang J; |
| Address: | "MOE Laboratory of Polymeric Composite and Functional Materials, School of Materials Science and Engineering, School of Chemical Engineering and Technology, School of Chemistry, Sun Yat-Sen University Guangzhou 510275 China zhjyong@mail.sysu.edu.cn" |
| ISSN/ISBN: | 2046-2069 (Electronic) 2046-2069 (Linking) |
| Abstract: | "Metal-organic gelation represents a promising approach to fabricate functional nanomaterials. Herein a series of Zr-carboxylate gels are synthesized from rigid pyrene, porphyrin and tetraphenyl ethylene-derived tetracarboxylate linkers, namely Zr-TBAPy (H(4)TBAPy = 1,3,6,8-tetrakis(4-carboxylphenyl)pyrene), Zr-TCPE (H(4)TCPE = 1,1,2,2-tetra(4-carboxylphenyl)ethylene), and Zr-TCPP (H(4)TCPP = 5,10,15,20-tetrakis(4-carboxyphenyl)porphyrin). The gels are aggregated from metal-organic framework (MOF) nanoparticles. Zr-TBAPy gel consists of NU-901 nanoparticles, and Zr-TCPP gel consists of PCN-224 nanoparticles. The xerogels show high surface areas up to 1203 m(2) g(-1). MOF gel films are also anchored on the butterfly wing template to yield Zr-MOF/B composites. Zr-TBAPy and Zr-TCPE gels are luminescent for solution-phase sensing and vapour-phase sensing of volatile organic compounds, and exhibit a significant luminescence quenching effect for electron-deficient analytes. Arising from the high porosity and good dispersion of luminescent MOF gels, rapid and effective vapour-sensing of nitrobenzene and 2-nitrotoluene within 30 s has been achieved via Zr-TBAPy film or Zr-TBAPy/B" |
| Notes: | "PubMed-not-MEDLINESun, Shujian Wei, Caifeng Xiao, Yali Li, Guangqin Zhang, Jianyong eng England 2020/12/21 RSC Adv. 2020 Dec 21; 10(73):44912-44919. doi: 10.1039/d0ra09035b. eCollection 2020 Dec 17" |
