A novel electrochemical sensor based on Fe<sup>3+</sup>-curcumin/multi-walled carbon nanotubes complex enabling electrochemical sensing of hydroxylamine

Xi, W; Kong, Z; Deng, Z; Chen, Y; Mou, H; Zhang, Y; Zhang, Z; Li, Z; Xu, X; Zheng, W

A novel electrochemical sensor based on Fe<sup>3+</sup>-curcumin/multi-walled carbon nanotubes complex enabling electrochemical sensing of hydroxylamine

Xi, W Kong, Z Deng, Z Chen, Y Mou, H Zhang, Y Zhang, Z Li, Z Xu, X

Zheng, W

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Publisher:: Elsevier
Publication Type:: Journal Article
Citation:: Diamond and Related Materials, 2024, 146, pp. 111133
Issue Date:: 2024-06-01

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Field	Value	Language
dc.contributor.author	Xi, W
dc.contributor.author	Kong, Z
dc.contributor.author	Deng, Z
dc.contributor.author	Chen, Y
dc.contributor.author	Mou, H
dc.contributor.author	Zhang, Y
dc.contributor.author	Zhang, Z
dc.contributor.author	Li, Z
dc.contributor.author	Xu, X https://orcid.org/0000-0002-2598-3766
dc.contributor.author	Zheng, W
dc.date.accessioned	2025-03-20T20:49:08Z
dc.date.available	2025-03-20T20:49:08Z
dc.date.issued	2024-06-01
dc.identifier.citation	Diamond and Related Materials, 2024, 146, pp. 111133
dc.identifier.issn	0925-9635
dc.identifier.uri	http://hdl.handle.net/10453/186059
dc.description.abstract	This work reported a novel electrocatalyst, Fe3+-curcumin/multi-walled carbon nanotubes (MWCNTs) complex, for efficient detection of hydroxylamine by modifying the glassy carbon electrode (Fe3+-curcumin/MWCNTs-modified electrode). The Fe3+-curcumin/MWCNTs complex was prepared via a green and facile one-pot synthesis method and the as-prepared complex was characterized using TEM, EDS, XRD, XPS, and EIS. Subsequently, the Fe3+-curcumin/MWCNTs complex modified electrode was adopted as an electrochemical sensor for hydroxylamine detection. The catalytic peak current for sensing the hydroxylamine using the Fe3+-curcumin/MWCNTs-modified electrode was 9.5 times higher the catalytic peak current using the curcumin/MWCNTs-modified electrodes. The overpotential was reduced by 550 mV compared to MWCNTs-modified electrodes. The interfacial electron transfer rate was 0.37 s−1 for the Fe3+-curcumin/MWCNTs-modified electrode. Furthermore, the Fe3+-curcumin/MWCNTs-modified electrode exhibited outstanding sensing performance within analyte concentration range from 0.05 to 1100 μM (a low detection limit of 0.02 μM, S/N = 3). Finally, the constructed sensor was successfully adopted for the hydroxylamine detection from the hydrolysis of the pralidoxime iodide injections, demonstrating the practical applications.
dc.language	en
dc.publisher	Elsevier
dc.relation.ispartof	Diamond and Related Materials
dc.relation.isbasedon	10.1016/j.diamond.2024.111133
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0904 Chemical Engineering, 0910 Manufacturing Engineering, 0912 Materials Engineering
dc.subject.classification	Applied Physics
dc.subject.classification	4016 Materials engineering
dc.subject.classification	4018 Nanotechnology
dc.subject.classification	5104 Condensed matter physics
dc.title	A novel electrochemical sensor based on Fe<sup>3+</sup>-curcumin/multi-walled carbon nanotubes complex enabling electrochemical sensing of hydroxylamine
dc.type	Journal Article
utslib.citation.volume	146
utslib.for	0904 Chemical Engineering
utslib.for	0910 Manufacturing Engineering
utslib.for	0912 Materials Engineering
pubs.organisational-group	University of Technology Sydney
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology/School of Biomedical Engineering
utslib.copyright.status	closed_access	*
dc.date.updated	2025-03-20T20:49:06Z
pubs.publication-status	Published
pubs.volume	146

Abstract:

This work reported a novel electrocatalyst, Fe3+-curcumin/multi-walled carbon nanotubes (MWCNTs) complex, for efficient detection of hydroxylamine by modifying the glassy carbon electrode (Fe3+-curcumin/MWCNTs-modified electrode). The Fe3+-curcumin/MWCNTs complex was prepared via a green and facile one-pot synthesis method and the as-prepared complex was characterized using TEM, EDS, XRD, XPS, and EIS. Subsequently, the Fe3+-curcumin/MWCNTs complex modified electrode was adopted as an electrochemical sensor for hydroxylamine detection. The catalytic peak current for sensing the hydroxylamine using the Fe3+-curcumin/MWCNTs-modified electrode was 9.5 times higher the catalytic peak current using the curcumin/MWCNTs-modified electrodes. The overpotential was reduced by 550 mV compared to MWCNTs-modified electrodes. The interfacial electron transfer rate was 0.37 s−1 for the Fe3+-curcumin/MWCNTs-modified electrode. Furthermore, the Fe3+-curcumin/MWCNTs-modified electrode exhibited outstanding sensing performance within analyte concentration range from 0.05 to 1100 μM (a low detection limit of 0.02 μM, S/N = 3). Finally, the constructed sensor was successfully adopted for the hydroxylamine detection from the hydrolysis of the pralidoxime iodide injections, demonstrating the practical applications.

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http://hdl.handle.net/10453/186059