A new bifunctional acid–base
catalyst, core–shell
UiO-66@SNW-1, with robust chemical and thermal stability, recyclability,
and durable catalytic activity is synthesized by a convenient, universal
strategy. Interestingly, this hybrid material can effectively catalyze
deacetalization-Knoevenagel condensation reaction in the presence
of excellent compartmentalization to spatially isolate opposing acid–base
sites.
A bifunctional luminescent Eu-MOF can be applied as a highly selective and sensitive bifunctional luminescence sensor to detect NB and 4-AP through an energy competition mechanism with low detection limits of 5–70 ppm and 5–110 ppm, respectively.
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