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Defect-engineered Co-Fe3N/rGO nanoarchitectures via urea-assisted nitridation for selective detection of gourmet flavorant vanillin in food products
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DOI：10.1016/j.foodchem.2026.149291.png)
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Abstract
En 中文
• First report of defect-engineered Co-Fe₃N/rGO via green urea-assisted nitridation for vanillin sensing. • Ultra-low detection limit of 0.249 nM – among the lowest reported for vanillin. • Nitrogen vacancies in Co-Fe₃N create abundant active sites for selective vanillin oxidation. • Synergistic Co-Fe₃N/rGO interface enables wide linear range (0.01–1322 μM). • Successful real-sample validation in 6 food matrices with >99% recovery.
Keywords:
Co-Fe₃N/rGO
vanillin sensing
nitrogen vacancies
food analysis
selective detection
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9.8
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4.6W
Citations:
24.4W
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