“…These sample defect states are one of the main determinants of the rate and effectiveness of photocatalytic dye degradation by ZnO NPs. The quantity of the photocatalyst and the concentration of the dye that needs to be destroyed are two other crucial factors in photocatalysis [45]. The photocatalytic activity of metal oxides of Co, Cu, and Ce along with the enhancement of their performance due to doping has been reported in detail with recent advancements.…”
ZnO was synthesised by the sol–gel method using zinc nitrate as the precursor. ZnO was doped with Al. Stress in the lattice was evident from the XRD peak shifts. A higher concentration of Al+3 showed a reverse strain effect also causing a reverse effect in the optical properties. An increase in crystallite size due to increased Al+3 was observed. A variation in absorption intensity based on the defect energy levels was observed. A difference in energy of the emission and absorption spectra resulting from defects in the material and non-radiative decay was seen. A change in the band gap was observed with changes in different dopant concentrations. These findings are useful for photocatalytic as well as antibacterial and anticancer treatments.
“…Eqn (3) was utilized to determine the surface area of the NWs. 36 Surface area ¼ 6000 GS Â r x The surface area of NiSe, Ag/C 3 N 4 and C 3 N 4 /Ag-doped NiSe was measured to be 40.95, 44.00, and 50.72 m 2 g −1 , respectively. The surface-to-volume ratio and specic surface area increased as the crystallite size decreased and vice versa.…”
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