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Electrochemical synthesis of phosphorus-doped graphene quantum dots for free radical scavenging

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Abstract

In this work, phosphorus-doped graphene quantum dots (P-GQDs) with a high phosphorus doping content (>7 at%) are synthesized via an electrochemical approach. Sodium phytate (C6H6Na12O24P6), a green food antioxidant additive, is used as the electrolyte for providing both a phosphorus source and an electrolysis environment. The obtained P-GQDs exhibit excellent scavenging activity of free radicals, such as hydroxyl radicals (˙OH) and 2,2-diphenyl-1-picrylhydrazyl (DPPH). Combined with Raman, FT-IR, and XPS spectral analyses, the reason for high phosphorus content and the mechanism of free radical scavenging of P-GQDs are investigated in our work.

Graphical abstract: Electrochemical synthesis of phosphorus-doped graphene quantum dots for free radical scavenging

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Publication details

The article was received on 15 Sep 2016, accepted on 07 Apr 2017 and first published on 07 Apr 2017


Article type: Paper
DOI: 10.1039/C6CP06377B
Citation: Phys. Chem. Chem. Phys., 2017, Advance Article
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    Electrochemical synthesis of phosphorus-doped graphene quantum dots for free radical scavenging

    Y. Li, S. Li, Y. Wang, J. Wang, H. Liu, X. Liu, L. Wang, X. Liu, W. Xue and N. Ma, Phys. Chem. Chem. Phys., 2017, Advance Article , DOI: 10.1039/C6CP06377B

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