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Tytuł:
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Facile synthesis of BCNO quantum dots with applications for ion detection, chemosensor and fingerprint identification.
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Autorzy:
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Jia X; School of Materials Science and Engineering, Hebei University of Technology, Tianjin, China.
Li L; School of Materials Science and Engineering, Hebei University of Technology, Tianjin, China.
Yu J; School of Materials Science and Engineering, Hebei University of Technology, Tianjin, China.
Gao X; College of Biomedical Engineering and Technology, Tianjin Medical University, Tianjin, China.
Yang X; School of Materials Science and Engineering, Hebei University of Technology, Tianjin, China.
Lu Z; School of Materials Science and Engineering, Hebei University of Technology, Tianjin, China.
Zhang X; School of Materials Science and Engineering, Hebei University of Technology, Tianjin, China. Electronic address: .
Liu H; School of Materials Science and Engineering, Tianjin University, Tianjin, China.
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Źródło:
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Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy [Spectrochim Acta A Mol Biomol Spectrosc] 2018 Oct 05; Vol. 203, pp. 214-221. Date of Electronic Publication: 2018 May 28.
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Typ publikacji:
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Journal Article
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Język:
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English
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Imprint Name(s):
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Publication: : Amsterdam : Elsevier
Original Publication: [Kidlington, Oxford, U.K. ; Tarrytown, NY] : Pergamon, c1994-
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Contributed Indexing:
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Keywords: BCNO QDs; Chemical sensor; Fingerprint identification; Ion detection; Quantum dots
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Entry Date(s):
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Date Created: 20180606 Date Completed: 20180626 Latest Revision: 20180626
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Update Code:
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20240105
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DOI:
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10.1016/j.saa.2018.05.099
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PMID:
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29870905
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Boron carbon oxynitride quantum dots (BCNO QDs) with blue emission were prepared via the template of SBA-15 (a typical mesoporous silica). A modulated photoluminescence sensor was developed based on the different quenching effects of Cu 2+ or Hg 2+ ions on the luminescence intensity of BCNO QDs. The Cu 2+ or Hg 2+ ions have an interaction with BCNO QDs due to the electrons transfer between the BCNO and Cu 2+ or Hg 2+ ions, and the detection limit of Cu 2+ or Hg 2+ ion concentration can be as less as 10 nM. The BCNO-Cr 6+ mixture can be served as a turn-on fluorescent sensor for detecting the ascorbic acid based on the inner filter effect since overlapping of excitation and emission spectra between Cr 6+ ions and BCNO QDs. Moreover, the BCNO QDs can also be applied to fingerprint identification and organic fluorescent films under ultraviolet excitation.
(Copyright © 2018. Published by Elsevier B.V.)
