AI Article Synopsis

  • * A newly synthesized and characterized Eu-MOF exhibits high photoluminescence, outstanding sensing abilities for iron and ofloxacin, and contributes to the development of efficient white LED components.
  • * The structure of the Eu-MOF features unique one-dimensional channels with carboxyl groups that enhance gas adsorption selectivity and create a platform for efficient proton transfer, showcasing its potential in conductivity applications.

Article Abstract

Lanthanide metal-organic frameworks (Ln-MOFs) combine the lanthanide luminescence characteristics and the advantages of porous materials, which can be used in various research fields by exploring their multifunctional properties. A three-dimensional water-stable and high-temperature resistant Eu-MOF [Eu(HO)(HL)]·0.5MeCN·0.25HO (H4L = 4-(3,5-dicarboxyphenoxy)isophthalic acid), demonstrating a high photoluminescence quantum yield, was synthesized and structurally characterized. In terms of luminescence, the Eu-MOF exhibits excellent selectivity and quenching sensing for Fe (LOD = 4.32 μM) and ofloxacin, as well as color modulation with Tb and La to develop white LED components with high illumination efficiency (color rendering index, CRI = 90). On the other hand, narrow one-dimensional channels of the Eu-MOF decorated with COOH groups enable a rare reverse adsorption selectivity in a CO/CH gas mixture. In addition, the protonated carboxyl groups in the Eu-MOF provide an efficient conducting platform for proton transfer with a conductivity value of 8 × 10 S cm at 50 °C and RH 100%.

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http://dx.doi.org/10.1039/d3dt01323eDOI Listing

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