A carbon-dot fluorescence capillary sensor for the determination of chemical oxygen demand

Rong Zhang,Yong-Sheng Li,Ya-Xiong Luo,Xu-Yan Zhang,Rong Wen,Xiu-Feng Gao

Microchemical Journal（2023）

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摘要

•A reversibly redox-switchable CD-FCS is first reported.•An adsorption/IFE mechanism of MnO2 for CDs fluorescence is proposed with kinetics.•The highly sensitive detection of COD is realized based on recirculating-flow system.•The sensor is well used in potable, waste and natural water for COD measurement.

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关键词

Fluorescence capillary sensor,Chemical oxygen demand,Reirculating-flow system,Carbon dots

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