Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/156257
Full metadata record
DC FieldValueLanguage
dc.contributor.authorLoh, Felicia Yi Huien_US
dc.date.accessioned2022-04-09T12:28:27Z-
dc.date.available2022-04-09T12:28:27Z-
dc.date.issued2022-
dc.identifier.citationLoh, F. Y. H. (2022). Transition metal dichalcogenides composites towards high sensitivity/lower detection limit of Cu2+ ions. Final Year Project (FYP), Nanyang Technological University, Singapore. https://hdl.handle.net/10356/156257en_US
dc.identifier.urihttps://hdl.handle.net/10356/156257-
dc.description.abstractIn this work, an accurate electrochemical sensor was developed for the detection of Cu2+ ions by modifying the surface of glassy carbon electrode (GCE) with vanadium selenide (VSe2) incorporated with cobalt, nickel, and titanium dopants. The doped VSe2 composites were successfully synthesised by a facile hydrothermal approach. The as-prepared VSe2 was confirmed by several analytical and spectroscopic techniques such as X-ray Diffraction (XRD), Scanning Electron Microscopy attached with Energy-Dispersive Spectroscopy (SEM-EDS), and X-ray Photoelectron Spectroscopy (XPS). The electrochemical properties and performance of Co-doped, Ni-doped, and Ti-doped VSe2 composites were investigated by performing linear sweep anodic stripping voltammetry (LSASV), and cyclic voltammetry (CV). The method was successfully applied for the detection of Cu (II) ions, and it shows the peak current increases exponentially with increasing Cu2+ concentration over the range of 10-6 mol/L to 10-2 mol/L. Among all the chemically modified working electrodes, 30% Co-doped VSe2 composite demonstrates the best performance in terms of redox potential, detection of Cu (II) ions with a detection limit of 10-6 mol/L, and reasonable stability. Also, it is evident that 30% Co-doped VSe2 composite possesses highest redox current signals, and electron transfer potential, which provides favourable properties for electrochemical sensing. In addition, it was shown that the chemically modified 30% Co-doped VSe2 composite can be applied to the quantitative determination of copper (II) ions with satisfactory results.en_US
dc.language.isoenen_US
dc.publisherNanyang Technological Universityen_US
dc.subjectEngineering::Materialsen_US
dc.titleTransition metal dichalcogenides composites towards high sensitivity/lower detection limit of Cu2+ ionsen_US
dc.typeFinal Year Project (FYP)en_US
dc.contributor.supervisorAlfred Tok Iing Yoongen_US
dc.contributor.schoolSchool of Materials Science and Engineeringen_US
dc.description.degreeBachelor of Engineering (Materials Engineering)en_US
dc.contributor.supervisoremailMIYTok@ntu.edu.sgen_US
item.grantfulltextembargo_restricted_20230408-
item.fulltextWith Fulltext-
Appears in Collections:MSE Student Reports (FYP/IA/PA/PI)
Files in This Item:
File Description SizeFormat 
Felicia Loh Yi Hui_FYP Report.pdf
  Until 2023-04-08
2.42 MBAdobe PDFUnder embargo until Apr 08, 2023

Page view(s)

51
Updated on Jul 1, 2022

Google ScholarTM

Check

Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.