Novel highly selective fluorescence sensing strategy for Mercury(Ⅱ) in water based on nitrogen-doped carbon quantum dots

Guiqiao Wang,Shurong Zhang,Jinzhi Cui,Wensu Gao,Xing Rong,Yaxin Lu,Canzhu Gao

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy（2023）

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摘要

•Fluorescent ion sensor is developed based on nitrogen-doped carbon quantum dots (NCQDs).•The NCQDs shows a low detection limit of 0.9 μM for Hg2+ ions.•The applicability of NCQDs for Hg2+ detection in river water and tap water was studied.•The acute toxicity of NCQDs to zebrafish was low.

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关键词

Nitrogen-doped carbon quantum dots,Mercury ions,Fluorescence quenching,Acute toxicity

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