Novel oxidative cutting graphene oxide to graphene quantum dots for electrochemical sensing application

For the first time, an integrated O3/H2O2/ultrasound process was proposed for the synthesis of graphene quantum dots with uniform lateral dimension of 4–10 nm

Jiawei Wen; Mingjie Li; Jiadong Xiao; Chenming Liu; Zehui Li; Yongbing Xie; Pengge Ning; Hongbin Cao; Yi Zhang

2016

Scholarcy highlights

  • For the first time, an integrated O3/H2O2/ultrasound process was proposed for the synthesis of graphene quantum dots with uniform lateral dimension of 4–10 nm
  • The hydroxyl radicals dominated cleavage effect was mainly responsible for tailoring graphene sheets into quantum dots
  • The resultant graphene quantum dots exhibited superior performance as electrode materials for electrochemically monitoring trace Cu2+ with a detection limit as low as 3 × 10−10 M

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