Interpenetration-Dependent Luminescent Probe in Indium-Organic Frameworks for Selectively Detecting Nitrofurazone in Water

Two novel anionic In-MOFs V101 and V102 were synthesized and structurally characterized.
The structrual
transformation from 2-fold interpenetration to noninterpenetration
was completed by changing solvent from DMF to DEF. Luminescence investigations
reveal that only V102 not V101 can sensitively
and selectively detect traces of antibiotics nitrofurazone in water
solution via an environmentally friendly manner, and the detection
limit can reach to 0.2 ppm. The luminescent difference between V101 and V102 mainly originates from the divergence
of interpenetration structures. Namely, through interpenetration-control,
the luminescent probe can switch on or off to detect nitrofurazone.
This is the first example of interpenetration-dependent MOFs-based
luminescent probe.