Fluorescent Sensors Based on Cu-Doped Carbon Quantum Dots for the Detection of Rutin
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Journal of the Brazilian Chemical Society (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532019000500988 |
Resumo: | In this paper, Cu-doped carbon quantum dots (Cu-CQDs) were prepared by carrying out thermolysis of Na2[Cu(EDTA)] and hydroxylamine hydrochloride at 300 ºC for 2 h. The as-prepared Cu-CQDs were characterized by UV-Vis, Fourier transform infrared (FTIR) spectroscopy, transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD). The Cu-CQDs exhibited good fluorescence property, high stability, excitation-dependent emission behavior and a quantum yield of 9.8%. More significantly, the synthesized Cu-CQDs were developed for sensing rutin (RT) based on the fluorescence quenching of the prepared Cu-CQDs. A good linear relationship between the fluorescence quenching of Cu-CQDs and different concentrations of RT was obtained in the range of 0.1-15 µg mL-1 with a correlation coefficient of 0.9959. The detection limit was as low as 0.05 µg mL-1 (signal-to-noise ratio, S/N = 3). The possible mechanism of fluorescence quenching was explored, which was proved to be inner filter effect. Importantly, the proposed method was successfully applied in the detection of RT tablet samples and with satisfactory results, showing the practical applications. |
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Fluorescent Sensors Based on Cu-Doped Carbon Quantum Dots for the Detection of RutinCu-doped carbon quantum dotsrutinNa2[Cu(EDTA)]fluorescence sensorsIn this paper, Cu-doped carbon quantum dots (Cu-CQDs) were prepared by carrying out thermolysis of Na2[Cu(EDTA)] and hydroxylamine hydrochloride at 300 ºC for 2 h. The as-prepared Cu-CQDs were characterized by UV-Vis, Fourier transform infrared (FTIR) spectroscopy, transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD). The Cu-CQDs exhibited good fluorescence property, high stability, excitation-dependent emission behavior and a quantum yield of 9.8%. More significantly, the synthesized Cu-CQDs were developed for sensing rutin (RT) based on the fluorescence quenching of the prepared Cu-CQDs. A good linear relationship between the fluorescence quenching of Cu-CQDs and different concentrations of RT was obtained in the range of 0.1-15 µg mL-1 with a correlation coefficient of 0.9959. The detection limit was as low as 0.05 µg mL-1 (signal-to-noise ratio, S/N = 3). The possible mechanism of fluorescence quenching was explored, which was proved to be inner filter effect. Importantly, the proposed method was successfully applied in the detection of RT tablet samples and with satisfactory results, showing the practical applications.Sociedade Brasileira de Química2019-05-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532019000500988Journal of the Brazilian Chemical Society v.30 n.5 2019reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.21577/0103-5053.20180245info:eu-repo/semantics/openAccessWang,Cheng-yaShang,ShanzhaiZheng,XudongLei,PingHan,JingmeiYuan,LindaLi,ZhiqiangWang,RuGong,WeiminTang,JianguoYang,Yalingeng2019-04-02T00:00:00Zoai:scielo:S0103-50532019000500988Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2019-04-02T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
Fluorescent Sensors Based on Cu-Doped Carbon Quantum Dots for the Detection of Rutin |
title |
Fluorescent Sensors Based on Cu-Doped Carbon Quantum Dots for the Detection of Rutin |
spellingShingle |
Fluorescent Sensors Based on Cu-Doped Carbon Quantum Dots for the Detection of Rutin Wang,Cheng-ya Cu-doped carbon quantum dots rutin Na2[Cu(EDTA)] fluorescence sensors |
title_short |
Fluorescent Sensors Based on Cu-Doped Carbon Quantum Dots for the Detection of Rutin |
title_full |
Fluorescent Sensors Based on Cu-Doped Carbon Quantum Dots for the Detection of Rutin |
title_fullStr |
Fluorescent Sensors Based on Cu-Doped Carbon Quantum Dots for the Detection of Rutin |
title_full_unstemmed |
Fluorescent Sensors Based on Cu-Doped Carbon Quantum Dots for the Detection of Rutin |
title_sort |
Fluorescent Sensors Based on Cu-Doped Carbon Quantum Dots for the Detection of Rutin |
author |
Wang,Cheng-ya |
author_facet |
Wang,Cheng-ya Shang,Shanzhai Zheng,Xudong Lei,Ping Han,Jingmei Yuan,Linda Li,Zhiqiang Wang,Ru Gong,Weimin Tang,Jianguo Yang,Yaling |
author_role |
author |
author2 |
Shang,Shanzhai Zheng,Xudong Lei,Ping Han,Jingmei Yuan,Linda Li,Zhiqiang Wang,Ru Gong,Weimin Tang,Jianguo Yang,Yaling |
author2_role |
author author author author author author author author author author |
dc.contributor.author.fl_str_mv |
Wang,Cheng-ya Shang,Shanzhai Zheng,Xudong Lei,Ping Han,Jingmei Yuan,Linda Li,Zhiqiang Wang,Ru Gong,Weimin Tang,Jianguo Yang,Yaling |
dc.subject.por.fl_str_mv |
Cu-doped carbon quantum dots rutin Na2[Cu(EDTA)] fluorescence sensors |
topic |
Cu-doped carbon quantum dots rutin Na2[Cu(EDTA)] fluorescence sensors |
description |
In this paper, Cu-doped carbon quantum dots (Cu-CQDs) were prepared by carrying out thermolysis of Na2[Cu(EDTA)] and hydroxylamine hydrochloride at 300 ºC for 2 h. The as-prepared Cu-CQDs were characterized by UV-Vis, Fourier transform infrared (FTIR) spectroscopy, transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD). The Cu-CQDs exhibited good fluorescence property, high stability, excitation-dependent emission behavior and a quantum yield of 9.8%. More significantly, the synthesized Cu-CQDs were developed for sensing rutin (RT) based on the fluorescence quenching of the prepared Cu-CQDs. A good linear relationship between the fluorescence quenching of Cu-CQDs and different concentrations of RT was obtained in the range of 0.1-15 µg mL-1 with a correlation coefficient of 0.9959. The detection limit was as low as 0.05 µg mL-1 (signal-to-noise ratio, S/N = 3). The possible mechanism of fluorescence quenching was explored, which was proved to be inner filter effect. Importantly, the proposed method was successfully applied in the detection of RT tablet samples and with satisfactory results, showing the practical applications. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-05-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532019000500988 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532019000500988 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.21577/0103-5053.20180245 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Química |
publisher.none.fl_str_mv |
Sociedade Brasileira de Química |
dc.source.none.fl_str_mv |
Journal of the Brazilian Chemical Society v.30 n.5 2019 reponame:Journal of the Brazilian Chemical Society (Online) instname:Sociedade Brasileira de Química (SBQ) instacron:SBQ |
instname_str |
Sociedade Brasileira de Química (SBQ) |
instacron_str |
SBQ |
institution |
SBQ |
reponame_str |
Journal of the Brazilian Chemical Society (Online) |
collection |
Journal of the Brazilian Chemical Society (Online) |
repository.name.fl_str_mv |
Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ) |
repository.mail.fl_str_mv |
||office@jbcs.sbq.org.br |
_version_ |
1750318181719736320 |