1. Facile fabrication of MIL-103(Eu) porous coordination polymer nanostructures and their sorption and sensing properties.
- Author
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Liu, Qing, Yang, Ji-Min, Guo, Fan, Jin, Li-Na, and Sun, Wei-Yin
- Subjects
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COORDINATION polymers synthesis , *NANOROD synthesis , *EUROPIUM compounds , *GAS absorption & adsorption , *POROUS polymers , *CHEMICAL derivatives , *BENZOIC acid , *X-ray diffraction , *CHEMICAL detectors - Abstract
Nano/microscale lanthanide porous coordination polymer MIL-103(Eu) [Eu(BTB)] (H3BTB = 4,4′,4′′-benzene-1,3,5-triyl-tribenzoic acid) crystals have been fabricated at room temperature by a facile, convenient and environmentally friendly method. The structures of the products were confirmed by powder X-ray diffraction, and the crystal morphologies, including microrods, nanorods and nanospheres, were characterized by scanning electron microscopy. It is found that the addition of sodium acetate and the concentration of the reactants have an important impact on the morphology and size of the MIL-103(Eu) crystals. Gas adsorption measurements reveal that the products show high specific surface areas among the rare earth based coordination polymers and the MIL-103(Eu) nanorods can selectively adsorb CO2 over N2 under ambient conditions. Furthermore, all the products exhibit red emission corresponding to the 5D0→7F2 transition of the Eu(iii) ion, and MIL-103(Eu) nanorods display sensitive and selective sensing for Cu(ii) ions and acetone molecules in solution. [ABSTRACT FROM AUTHOR]
- Published
- 2016
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