期刊
OPTICAL MATERIALS
卷 121, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.optmat.2021.111622
关键词
Metal-organic frameworks; Quantum dots; Ascorbic acid; Ratiometric fluorescence
资金
- Natural Science Foundation Projects of China [81950410634, QNJ20200010003]
- Independent Innovation Fund Project of Agricultural Science and Technology of Jiangsu Province in 2017 [CX (17) 1003]
- Chinese College Students Innovation Project for the R&D of Novel Drugs [201910316195]
In this study, a dual-emission sensor was developed for sensing ascorbic acid (AA) using CdTe quantum dots and Zr-MOF. The sensor showed good sensitivity towards AA and great selectivity over other structural analogs, benefiting from the confinement effect of the UiO-66-NH2 host.
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-66NH2@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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