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Sökning: onr:"swepub:oai:DiVA.org:umu-203971" > Sulfur quantum dot ...

LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00003941naa a2200457 4500
001oai:DiVA.org:umu-203971
003SwePub
008230124s2023 | |||||||||||000 ||eng|
024a https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-2039712 URI
024a https://doi.org/10.1016/j.jlumin.2023.1196932 DOI
040 a (SwePub)umu
041 a engb eng
042 9 SwePub
072 7a ref2 swepub-contenttype
072 7a art2 swepub-publicationtype
100a Liu, Yong-fengu Umeå universitet,Institutionen för fysik,College of Physical Science and Technology, Yangzhou University, Yangzhou, China; Microelectronics Industry Research Institute, Yangzhou University, Jiangsu, Yangzhou, China4 aut0 (Swepub:umu)yoli0007
2451 0a Sulfur quantum dot as a fluorescent nanoprobe for Fe3+ ions :b Uncovering of detection mechanism, high sensitivity, and large detection range
264 1b Elsevier,c 2023
338 a electronic2 rdacarrier
520 a Sulfur quantum dots (SQDs), as a novel metal-free fluorescent material, are getting increasingly tremendous attention in metal ion detection, especially for Fe3+, due to the merits of antimicrobial potential, low toxicity, and exciting optoelectronic properties. However, sensing mechanism of SQD based fluorescent probe for Fe3+ is not clear yet, and high sensitivity and large detection range remain a challenge. Here, we report the synthesis of hydrophilic SQDs as a fluorescent nanoprobe for Fe3+ via a fluorescent turn-off mode. We systematically studied the quenching mechanism by ultraviolet–visible absorption spectra, steady-state and time-resolved photoluminescent spectra, and temperature-dependent quenching constants. Results unclearly evidenced the quenching behavior to both inner filter effect and static quenching. Furthermore, the nanoprobe presents a large detection range from 2.5 to 700 μM and a limit of detection low to 53.6 nM, both of which are the record performance to our knowledge. At last, it shows high selectivity toward Fe3+ and presents no ionic strength effect in the range of investigation, which enables surprising results for Fe3+ detection in deionized water with interference ion and real water samples.
650 7a NATURVETENSKAPx Fysikx Atom- och molekylfysik och optik0 (SwePub)103022 hsv//swe
650 7a NATURAL SCIENCESx Physical Sciencesx Atom and Molecular Physics and Optics0 (SwePub)103022 hsv//eng
653 a Detection mechanism
653 a Fe3+ detection
653 a Fluorescent quenching
653 a Inner filter effect
653 a Static quenching
653 a Sulfur quantum dots
700a Shao, Xiuwenu College of Physical Science and Technology, Yangzhou University, Yangzhou, China4 aut
700a Gao, Zhaojuu College of Physical Science and Technology, Yangzhou University, Yangzhou, China4 aut
700a Zhu, Xiaolinu College of Physical Science and Technology, Yangzhou University, Yangzhou, China4 aut
700a Pan, Zhangchengu College of Physical Science and Technology, Yangzhou University, Yangzhou, China4 aut
700a Ying, Yupengu College of Physical Science and Technology, Yangzhou University, Yangzhou, China4 aut
700a Yang, Jinpengu College of Physical Science and Technology, Yangzhou University, Yangzhou, China4 aut
700a Pei, Weiu College of Physical Science and Technology, Yangzhou University, Yangzhou, China4 aut
700a Wang, Jiau Umeå universitet,Institutionen för fysik4 aut0 (Swepub:umu)jiwa0007
710a Umeå universitetb Institutionen för fysik4 org
773t Journal of Luminescenced : Elsevierg 257q 257x 0022-2313x 1872-7883
856u https://umu.diva-portal.org/smash/get/diva2:1730162/FULLTEXT01.pdfx primaryx Raw objecty fulltext:print
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-203971
8564 8u https://doi.org/10.1016/j.jlumin.2023.119693

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