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High quantum yield aminophenylboronic acid-functionalized N-doped carbon dots for highly selective hypochlorite ion detection

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Abstract
High quantum yield 3-aminophenylboronic acid-functionalized nitrogen-doped carbon dots (GAAP-CDs) were fabricated using a simple hydrothermal route and used as a sensing probe for toxic hypochlorite (ClO-). The as-synthesized GAAP-CDs showed absorption peaks at 252, 297, and 370 nm and an emission peak at 375 nm with an excitation wavelength of 310 nm. The quantum yield of GAAP-CDs reached 58.28%, with no noticeable fluorescence change observed under high ionic strength conditions and a three-month long-term test. GAAP-CDs-based ClO- sensing was carried out by UV-vis absorbance and fluorescence spectroscopy; the detection limit was as low as 0.77 mu M (linear range of 0-100 mu M), and 0.50 mu M (linear range of 0.1-100 mu M), respectively. In addition, the as-synthesized GAAP-CDs showed excellent selectivity towards ClO- ions in the presence of various interfering chemicals. The satisfactory results from the proposed method of ClO- detection in tap water and drinking water samples, suggesting promising application of GAAP-CDs for ClO- detection. (C) 2021 Elsevier B.V. All rights reserved.
Author(s)
왕림림정진석허승현Jayasmita Jana
Issued Date
2021
Type
Article
Keyword
3-Aminophenylboronic acidCarbon dotsColorimetricFluorescenceFluorescence spectroscopyHypochlorite ionQuantum yield
DOI
10.1016/j.saa.2021.119895
URI
https://oak.ulsan.ac.kr/handle/2021.oak/8821
https://ulsan-primo.hosted.exlibrisgroup.com/primo-explore/fulldisplay?docid=TN_cdi_gale_infotracacademiconefile_A664846009&context=PC&vid=ULSAN&lang=ko_KR&search_scope=default_scope&adaptor=primo_central_multiple_fe&tab=default_tab&query=any,contains,High%20quantum%20yield%20aminophenylboronic%20acid-functionalized%20N-doped%20carbon%20dots%20for%20highly%20selective%20hypochlorite%20ion%20detection&offset=0
Publisher
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
Location
영국
Language
영어
ISSN
1386-1425
Citation Volume
260
Citation Number
1
Citation Start Page
119895
Citation End Page
119895
Appears in Collections:
Engineering > Aerospace Engineering
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