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One-Step Synthesis of Boron Nitride Quantum Dots: Simple Chemistry Meets Delicate Nanotechnology
journal contribution
posted on 2016-12-23, 00:00 authored by B Liu, S Yan, Z Song, M Liu, X Ji, Wenrong YangWenrong Yang, J LiuHerein, a conceptually new and straightforward aqueous route is described for the synthesis of hydroxyl- and amino-functionalized boron nitride quantum dots (BNQDs) with quantum yields (QY) as high as 18.3 % by using a facile bottom-up approach, in which a mixture of boric acid and ammonia solution was hydrothermally treated in one pot at 200 °C for 12 h. The functionalized BNQDs, with excellent photoluminescence properties, could be easily dispersed in an aqueous medium and applied as fluorescent probes for the detection of ferrous (Fe2+) and ferric (Fe3+) ions with excellent selectivity and low detection limits. The mechanisms for the hydrothermal reaction and fluorescence quenching were also simulated by using density functional theory (DFT), which confirmed the feasibility and advantages of this strategy. It provides a scalable and eco-friendly method for preparation of BNQDs with good dispersability and could also be generalized to the synthesis of other 2D quantum dots and nanoplates.
History
Journal
Chemistry - A European JournalVolume
22Issue
52Pagination
18899 - 18907Publisher DOI
ISSN
0947-6539eISSN
1521-3765Publication classification
C Journal article; C1 Refereed article in a scholarly journalCopyright notice
2016, Wiley-VCH Verlag GmbH &Co. KGaA, WeinheimUsage metrics
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