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Published on: August 16, 2018
A Bifunctional Zn(II) Metal-Organic Framework for C3H6/C2H4 Separation and Fluorescent High-Temperature Sensing
Wei Wang1,2, Hui Hu1, Xue-Hui Liu1
1Shandong Provincial Key Laboratory of Monocrystalline Silicon Semiconductor Materials and Technology, Shandong Universities Engineering Research Center of Integrated Circuits Functional Materials and Expanded Applications, College of Chemistry and Chemical Engineering, Dezhou University, Dezhou253023, P. R. China.
We developed a novel metal-organic framework (MOF) for efficient propylene/ethylene separation and high-temperature sensing. This multifunctional material offers a promising platform for advanced chemical applications.
Area of Science:
- Materials Science
- Chemical Engineering
- Nanotechnology
Background:
- Developing multifunctional materials for simultaneous gas separation and sensing is crucial.
- Metal-organic frameworks (MOFs) offer tunable properties for such applications.
Purpose of the Study:
- To synthesize and characterize a novel Zn-based MOF (DZU-211-Zn) for integrated gas separation and thermometry.
- To evaluate its performance in propylene/ethylene separation and high-temperature fluorescence sensing.
Main Methods:
- Synthesis of {[Zn3(NTB)2(bib)]·(DMA)2·(H2O)4}n (DZU-211-Zn) using H3NTB and bib ligands.
- Gas adsorption experiments to determine separation performance.
- Fluorescence spectroscopy to assess temperature-dependent emission quenching.
Main Results:
- DZU-211-Zn achieved high C3H6/C2H4 selectivity (>10) with efficient separation.
- The MOF exhibited intense blue fluorescence with a high quantum yield (38.4%).
- Reversible, linear fluorescence quenching was observed up to 473 K, enabling high-temperature thermometry.
Conclusions:
- DZU-211-Zn is a rare MOF integrating light-hydrocarbon separation and fluorescence thermometry.
- This work demonstrates a pathway for designing advanced multifunctional MOF materials.
