Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5355350 | Applied Surface Science | 2016 | 38 Pages |
Abstract
The graphitic carbon nitride (g-C3N4)/iron oxide (α-Fe2O3) composites have been prepared by a one-step pyrolysis of Prussian blue (PB) and melamine. The Fe2O3 nanoparticles derived from PB effectively protect the thin layers of g-C3N4 from restacking and expanding. The as-prepared g-C3N4/α-Fe2O3 composites exhibit a large specific surface area, and demonstrate their excellent electrochemical performance in the supercapacitor and non-enzymatic detection of glucose. The g-C3N4/α-Fe2O3 composites facilitate the faster faradic reaction in 1.0 M KOH electrolyte, and deliver the highest specific capacitance (580 F gâ1) at the current density of 1.0 A gâ1. The resultant composites also show an excellent long cycle life (up to 1000 cycles) at the current density of 2 A gâ1. In addition, the modified electrode based on the g-C3N4/α-Fe2O3 hybrids are also used for the non-enzymatic detection of glucose. The as-fabricated modified electrode exhibits good electrochemical performance towards the oxidation of glucose with a response time <3 s and a linear range of 2.0 Ã 10â6 â 2.4 Ã 10â3 mol Lâ1. The electrode modified by the g-C3N4/α-Fe2O3 composites exhibits good anti-interference performance and stability. The g-C3N4/α-Fe2O3 hybrids have great potential in the application of electrochemical storage devices and sensors.
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Authors
Lin Liu, Jinxiang Wang, Chengyin Wang, Guoxiu Wang,