N-doped carbon quantum dots obtained by oleylamine through electrochemical routes: structural study and a proof of concept in the employ as a probe for detection of copper through surface-enhanced ultraviolet absorbance (SEUVA)

Página do item simplificado
dc.contributor.authorName L.L.
dc.contributor.authorLieb L.C.
dc.contributor.authorTiba D.Y.
dc.contributor.authorCanevari T.C.
dc.date.accessioned2024-03-12T19:07:37Z
dc.date.available2024-03-12T19:07:37Z
dc.date.issued2024
dc.description.abstract© 2023, King Abdulaziz City for Science and Technology.This work reports the characterization and application of N-doped carbon quantum dots (CdotN) obtained electrochemically from oleylamine as a copper (II) UV probe. It has been observed that copper salts dissolved in ethanol show a well-defined UV absorption band with an apex at 372 nm. Moreover, CdotN as a complexing agent, promotes emerging surface-enhanced ultraviolet absorbance (SEUVA) events that facilitate copper determination. The characterization of CdotN nanomaterial has been performed by FTIR, UV–Vis, Raman spectroscopy, Atomic force microscopy (AFM), Transmission electron microscopy (TEM), Differential thermal analysis (DTA), and Thermogravimetric analysis (TGA). The detection limit in the standard sample has been assigned as 156 ppb, and the limit of quantification as 312 ppb. The SEUVA technique using CdotN as a probe has been employed to determine copper in real samples present recovery of about 105 and 109%. The copper determination by CdotN did not suffer significantly interfere with other cationic ions or dyes.
dc.description.firstpage149
dc.description.issuenumber1
dc.description.lastpage160
dc.description.volume14
dc.identifier.doi10.1007/s13204-023-02963-7
dc.identifier.issn2190-5517
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/33974
dc.relation.ispartofApplied Nanoscience (Switzerland)
dc.rightsAcesso Restrito
dc.subject.otherlanguageCarbon quantum dots
dc.subject.otherlanguageCopper ions
dc.subject.otherlanguageSurface-enhanced ultraviolet absorbance
dc.subject.otherlanguageUv–Vis spectroscopy
dc.titleN-doped carbon quantum dots obtained by oleylamine through electrochemical routes: structural study and a proof of concept in the employ as a probe for detection of copper through surface-enhanced ultraviolet absorbance (SEUVA)
dc.typeArtigo
local.scopus.citations2
local.scopus.eid2-s2.0-85173790852
local.scopus.subjectCarbon quantum dots
local.scopus.subjectCopper determination
local.scopus.subjectCopper ions
local.scopus.subjectDoped carbons
local.scopus.subjectElectrochemical routes
local.scopus.subjectN-doped
local.scopus.subjectStructural studies
local.scopus.subjectSurface-enhanced ultraviolet absorbance
local.scopus.subjectUltraviolet absorbance
local.scopus.subjectUV/ Vis spectroscopy
local.scopus.updated2024-10-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85173790852&origin=inward
Arquivos
Coleções
Artigos de periódico