期刊
CHEMICAL COMMUNICATIONS
卷 52, 期 76, 页码 11442-11445出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6cc06325j
关键词
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资金
- National Natural Science Foundation of China [51372266, 51572286, 21503266, 51402204]
- Outstanding Youth Fund of Jiangsu Province [BK20160011]
- Thousand Young Talents Program
- Jiangsu Specially-Appointed Professor Program
A simple, general and fast method called electrochemical shock is developed to prepare monolayered transition-metal dichalcogenide (TMD) QDs with an average size of 2-4 nm and an average thickness of 0.85 +/- 0.5 nm with only about 10 min of ultrasonication. Just like nails hammered into a plate, the electrochemical shock with Al3+ ions and the following extraction with the help of oleic acid can disintegrate bulk TMD crystals into ultrafine TMD QDs. The fast-prepared QDs are then applied to detect highly explosive molecules such as 2,4,6-trinitrophenol (TNP) with a low detection limit of 10(-6) M. Our versatile method could be broadly applicable for the fast production of ultrathin QDs of other materials with great promise for various applications.
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