Abstract
The present study is focused on nanostructured thin films of nitrogen-doped titanium dioxide (N-TiO2) deposited on ITO glass substrate using the sol–gel spin coating method. The influence of varying ionic strength of electrolytes on the photoelectrochemical response was investigated in the mixture of electrolytes (NaOH + Na2SO4 and KOH + K2SO4). The concentration of electrolytes varied from 0.1 M to 3.1 M. The photocurrent-voltage (J-V) characteristic of N-TiO2 electrodes was studied and analyzed for all variables. A maximum photocurrent of 13.25 mA at 1.23 V/RHE was obtained at an ionic strength of 0.7 M in a mixture of NaOH and Na2SO4 electrolytes.
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