Facile preparation of highly fluorescent nitrogen-doped graphene quantum dots for sensitive Fe3+ detection

Hao Zhou,Meigui Ou,Donghao Sun,Chunlin Yang

Optics & Laser Technology（2022）

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摘要

•N-GQDs (19.1%) has a higher quantum yield than GQDs (1.7%).•The fluorescence intensity of N-GQDs is stronger than that of GQDs, and the enhancement mechanism was analyzed.•The ultra-high Fe3+ detection selectivity and sensitivity of Nitrogen-doped graphene quantum dots were proved.

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关键词

Nitrogen-doped graphene quantum dots,Photoluminescence,Fe3+ detection,Bandgap

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