期刊
ACS OMEGA
卷 3, 期 9, 页码 12052-12059出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsomega.8b01665
关键词
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资金
- National Research Foundation of Korea (NRF) grant - Korea Government (MSIP) [2017R1A2B4004700]
- Research program of Ministry of Trade, Industry and Energy [20000580]
- Korea Evaluation Institute of Industrial Technology (KEIT) [20000580] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
In this work, we synthesized gold nanoclusters within a Zirconium-based metal-organic framework ( AuNCs@UiO-66) that may create new prospects for the development of novel sensing materials for biosensor applications. The resulting AuNCs@UiO-66 nanocomposite exhibits red fluorescence with a high quantum yield ( 11%), and the AuNCs are homogeneously distributed along UiO-66. Analytical and morphological characterizations of the resulting material were carried out by UV-visible spectroscopy, photoluminescence spectroscopy, X-ray photoelectron spectroscopy, X-ray diffraction, and high-resolution transmission electron microscopy. The synthesized AuNCs@UiO-66 nanocomposite was used for the effective detection of Hg2+ ions with a detection limit as low as 77 pM. Moreover, the fabricated sensors also successfully detected Hg2+ in real water samples. This sensor is stable and highly fluorescent, developed using a simple fabrication method, and would be constructive for the detection of other metal ions and in biological applications.
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