ZnO-NiO NANOCOMPOSITES SYNTHESIZED VIA A FACILE SONOCHEMICAL ROUTE FOR HIGH-PERFORMANCE PHOTOCATALYTIC AND ELECTROCHEMICAL SENSING APPLICATIONS
Tulsi leaf extract was used in a sonochemical process to produce the Zn: NiONC. Several spectral techniques wereused to study the composite material. Zn: NiONC crystallites of a size of 28 nm are visible in XRD. The SEMreveals a hexagon-shaped particle with an average particle size of about 80 nm. The DRS spectra showthat theenergy band-gap value of Zn: NiO NC is 3.223 eV. The NC PCA was evaluated using Congo Reddyephotodegradation; the results show that under UV-Vis light, the highest absorption was seen at 497 nmwith 80.9%degradation. The Zn: NiONC is also used as an electrode in CV studies. In a 1 M HCl solution, it shows the surfaceredox process of Ni2+ to Ni3+ at 0.31 V and 0.15 V at 10 mV/s. By exhibiting a redox peak in the CVspectrum, theZn: NiONC successfully identified lithium. This suggests that the electrode is suitable for use as a sensor electrode.
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