Electrochemical synthesis of phosphorus-doped graphene quantum dots for free radical scavenging. Issue 18 (21st April 2017)

• Record Type: Journal Article
• Authors: Li, Yan; Li, Sen; Wang, Yingmin; Wang, Jun; Liu, Hui; Liu, Xinqian; Wang, Lifeng; Liu, Xiaoguang; Xue, Wendong; Ma, Ning
• Is Part Of: Physical chemistry chemical physics. Volume 19:Issue 18(2017)
• Page Start: 11631
• Page End: 11638
• Publication Date: 2017-04-21
• Subjects: Chemistry, Physical and theoretical -- Periodicals; 541.3
• DOI: 10.1039/c6cp06377b
• Languages: English
• ISSNs: 1463-9076

Abstract

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. 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 (C6 H6 Na12 O24 P6 ), 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.