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Open Access A facile hydrothermal method to synthesize fluorescent carbon dots for detecting iron

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A new carbon source (mint) is proposed to prepare carbon dots with excellent photostability and strong photobleaching properties by one-step hydrothermal method. The average particle diameter for carbon dots is 5.0 nm, emitting blue luminescence, and the quantum yield is 4.5%. Fluorescence can be obviously quenched in Fe3+ solution. Further, A method based on fluorescence quenching of carbon dots for detecting Fe3+ is established, which has a linear range of 0.5∼100 μM with a detection limit of 0.104 μM. This may provide an easy and sensitive method for iron detection.

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Keywords: CARBON DOTS; DETECTION; FLUORESCENCE; HYDROTHERMAL METHOD; IRON; MINT

Document Type: Research Article

Publication date: July 1, 2020

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  • Materials Express is a peer-reviewed multidisciplinary journal reporting emerging researches on materials science, engineering, technology and biology. Cutting-edge researches on the synthesis, characterization, properties, and applications of a very wide range of materials are covered for broad readership; from physical sciences to life sciences. In particular, the journal aims to report advanced materials with interesting electronic, magnetic, optical, mechanical and catalytic properties for industrial applications.
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