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dc.contributor.authorHasanzadeh, M
dc.contributor.authorKarimzadeh, A
dc.contributor.authorSadeghi, S
dc.contributor.authorMokhtarzadeh, A
dc.contributor.authorShadjou, N
dc.contributor.authorJouyban, A
dc.date.accessioned2018-08-26T07:27:59Z
dc.date.available2018-08-26T07:27:59Z
dc.date.issued2016
dc.identifier.urihttp://dspace.tbzmed.ac.ir:8080/xmlui/handle/123456789/46928
dc.description.abstractIn the present study, the magnetic graphene quantum dot (Fe3O4 MNPs-GQDs) was synthesized successfully and characterized by using fourier transform infrared spectroscopy, transmission electron microscopy and atomic force microscopy (AFM). For the first time, as-synthesized GQDs and Fe3O4 MNPs-GQDs was electrodeposited on GCE by cyclic voltammetry (CV) in the potential range from -1.0 to 1.0 V and the prepared films were used for detection of Vitamin C at physiological pH. Herein, we explore the electrocatalytical activity of Fe3O4 MNPs-GQDs. We have illustrated that the as-obtained Fe3O4 MNPs-GQDs exhibited a much higher electroactivity individual GQDs and Fe3O4 MNPs for the electrooxidation and detection of Vitamin C which was about two fold higher than for GQDs. More importantly, a substantial (+0.21 V) decrease in the overvoltage of the Vitamin C oxidation reaction (compared to ordinary electrodes) was observed using Mag-GQDs-GCE. In general, Fast response time, excellent catalytic activity, lower overvoltage and ease of preparation are the advantages of the proposed nanosensor.
dc.language.isoEnglish
dc.relation.ispartofJOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
dc.titleGraphene quantum dot as an electrically conductive material toward low potential detection: a new platform for interface science
dc.typeArticle
dc.citation.volume27
dc.citation.issue6
dc.citation.spage6488
dc.citation.epage6495
dc.citation.indexWeb of science
dc.identifier.DOIhttps://doi.org/10.1007/s10854-016-4590-6


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