A luminescent nanocrystal metal–organic framework for sensing of nitroaromatic compounds

The treatment of Cd(II) ion with the sodium salt of H2atc (H2atc = 2-aminoterephthalic acid) in aqueous solution facilely yields crystal nanorods of metal–organic framework at room temperature. The nanocrystal metal–organic framework (NMOF) of [Cd(atc)(H2O)2]n (NMOF 1) has been realized for the straightforward and highly sensitive sensing of nitroaromatic compounds in ethanol solution by the fluorescence quenching and fluorescence titration experiments.

Nanocrystal metal–organic framework 1 (NMOF 1) has an very high density arranged with lengths of 4–6 μm, and the superstructures are built from one dimensional (1D) nanorods with thicknesses of 20–40 nm and widths of 80–100 nm. The maximum fluorescence intensities of the ethanol solution of NMOF 1 nanorods with different analytes show that NMOF 1 has an ability for sensing nitroaromatic compounds efficiently.Figure optionsDownload as PowerPoint slide