Sökning: onr:"swepub:oai:DiVA.org:umu-203971" >
Sulfur quantum dot ...
-
Liu, Yong-fengUmeå universitet,Institutionen för fysik,College of Physical Science and Technology, Yangzhou University, Yangzhou, China; Microelectronics Industry Research Institute, Yangzhou University, Jiangsu, Yangzhou, China
(författare)
Sulfur quantum dot as a fluorescent nanoprobe for Fe3+ ions : Uncovering of detection mechanism, high sensitivity, and large detection range
- Artikel/kapitelEngelska2023
Förlag, utgivningsår, omfång ...
-
Elsevier,2023
-
electronicrdacarrier
Nummerbeteckningar
-
LIBRIS-ID:oai:DiVA.org:umu-203971
-
https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-203971URI
-
https://doi.org/10.1016/j.jlumin.2023.119693DOI
Kompletterande språkuppgifter
-
Språk:engelska
-
Sammanfattning på:engelska
Ingår i deldatabas
Klassifikation
-
Ämneskategori:ref swepub-contenttype
-
Ämneskategori:art swepub-publicationtype
Anmärkningar
-
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.
Ämnesord och genrebeteckningar
Biuppslag (personer, institutioner, konferenser, titlar ...)
-
Shao, XiuwenCollege of Physical Science and Technology, Yangzhou University, Yangzhou, China
(författare)
-
Gao, ZhaojuCollege of Physical Science and Technology, Yangzhou University, Yangzhou, China
(författare)
-
Zhu, XiaolinCollege of Physical Science and Technology, Yangzhou University, Yangzhou, China
(författare)
-
Pan, ZhangchengCollege of Physical Science and Technology, Yangzhou University, Yangzhou, China
(författare)
-
Ying, YupengCollege of Physical Science and Technology, Yangzhou University, Yangzhou, China
(författare)
-
Yang, JinpengCollege of Physical Science and Technology, Yangzhou University, Yangzhou, China
(författare)
-
Pei, WeiCollege of Physical Science and Technology, Yangzhou University, Yangzhou, China
(författare)
-
Wang, JiaUmeå universitet,Institutionen för fysik(Swepub:umu)jiwa0007
(författare)
-
Umeå universitetInstitutionen för fysik
(creator_code:org_t)
Sammanhörande titlar
-
Ingår i:Journal of Luminescence: Elsevier2570022-23131872-7883
Internetlänk
Hitta via bibliotek
Till lärosätets databas