Fabrication and Characterization of Sulphur-doped Graphitic Carbon Nitride Nanosheets as a Highly Selective and Ultrasensitive Electrochemical Sensor for Detection of 2,4-Dinitrophenol in Real Gym Supplements

Herein, an effective template assisted calcination procedure has been adopted to synthesize the Sulphur-doped graphitic carbon nitride (S_XGCN). Furthermore, the S_XGCN/GCE was then utilized for the electrochemical determination of 2,4-Dinitrophenol (2,4-DNP). It has been inferred that among the variously prepared S_XGCN (x=0 %, 20 %, 40 %, 60 %, 80 %, and 100 %), S₈₀GCN afforded the excellent electrochemical response for detection of 2,4-DNP. The synthesized S_XGCN/GCE (x=80 %) demonstrates with a low detection limit of 0.9083 μM with linear range of 1–90 μM. Furthermore, the practical application of this sensor was successfully proved by detecting spiked 2,4-dinitrophenol in a real gym supplements sample.