Green emitting N, P-doped carbon dots as efficient fluorescent nanoprobes for determination of Cr(VI) in water and soil samples

Amidou Tall,Francisco Antônio Cunha,Boukaré Kaboré,Cintya d'Angeles do E. S. Barbosa,Uéslen Rocha,Tasso O. Sales,Marília O. Fonseca Goulart,Issa Tapsoba,Josué Carinhanha Caldas Santos

Microchemical Journal（2021）

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摘要

•Green emitting N, P-CDs derived from phytic acid, and L-arginine were produced.•Environmentally friendly precursors allowing CDs doped with N and P.•High sensitive and selective fluorescence quenching induced by Cr(VI) ions.•Cr(VI) reduced to Cr(III) upon interactions with N, P-CDs in acid medium.•The method was applied to water and soil samples with high recoveries.

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关键词

Carbon dots,Heteroatoms doping,Metal sensing,Environmental samples

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