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The current study deals with the sensitive electrochemical sensor for ecologically harmful pNitrophenol (pNP) based on a glassy carbon electrode which was modified by nickel-curcumin [Ni(Curc)2]/graphene oxide [GO]. The physicochemical properties of the as-prepared nanocomposites were characterized using a different analytical and spectroscopic method, which include UV-Vis spectrophotometer, fourier-transform infra-red spectrophotometer, field emission scanning electron microscopy and cyclic voltammetry. The reduction of pNP at modified GCE revealed linear range 0.49-760 μM, limit of detection 0.016 μM and high sensitivity 0.671μA μM -1 cm 2 . The recommended sensor was well developed and established the influence of low cost, easily prepare, which is greater to newly reported modified electrodes, thereby permissive practical industrial applications.

international journal of electrochemical science

Fabrication of a Novel Nickel-Curcumin/Graphene Oxide Nanocomposites for Superior Electrocatalytic Activity toward the Detection of Toxic p-nitrophenol