Photoluminescent AuNCs@UiO-66 for Ultrasensitive Detection of Mercury in Water Samples
- Authors
- Govindaraju, Saravanan; Puthiaraj, Pillaiyar; Lee, Min-Ho; Yun, Kyusik
- Issue Date
- Sep-2018
- Publisher
- AMER CHEMICAL SOC
- Citation
- ACS OMEGA, v.3, no.9, pp.12052 - 12059
- Journal Title
- ACS OMEGA
- Volume
- 3
- Number
- 9
- Start Page
- 12052
- End Page
- 12059
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/3395
- DOI
- 10.1021/acsomega.8b01665
- ISSN
- 2470-1343
- Abstract
- 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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Collections - 바이오나노대학 > 바이오나노학과 > 1. Journal Articles
- 산업·환경대학원 > 산업환경공학과 > 1. Journal Articles
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