Abstract
In the present work, a dual-emission sensor constructed with CdTe quantum dots and Zr-MOF, was developed for sensing ascorbic acid (AA). Based on the distinct fluorescent responses of CdTe and UiO-66-NH2 to AA, UiO-66-NH2@CdTe can be developed as a ratiometric sensor for AA detection. In this ratiometric sensor, the emission of UiO-66-NH2 is quenched while the emission of CdTe is increased with the addition of AA. Benefiting from the confinement effect of the UiO-66-NH2 host, the presented sensor showed good sensitivity toward AA and great selectivity over other structural analogs.
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