Copper(I) oxide nanospheres decorated with graphene quantum dots display improved electrocatalytic activity for enhanced luminol electrochemiluminescence

We report on an in-situ method for fabricating Cu2O nanospheres decorated with graphene quantum dots

Yuting Yan; Qian Liu; Xiaoya Dong; Nan Hao; Saibo Chen; Tianyan You; Hanping Mao; Kun Wang

2016

Scholarcy highlights

  • We report on an in-situ method for fabricating Cu2O nanospheres decorated with graphene quantum dots
  • The material was characterized by transmission electron microscopy, X-ray photoelectron spectroscopy and X-ray diffraction
  • Compared to the use of plain Cu2O nanospheres, the incorporation of GQDs improves the catalytic performance of Cu2O nanospheres towards luminol oxidation effectively
  • This is attributed to the improved electron transfer capability of GQDs
  • The assay displays a linear response in the 0.02 to 300 ng mL−1 concentration range, with a detection limit of 6.6 pg mL−1

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