Photoelectrocatalytic Performance of Benzoic Acid on TiO₂ Nanotube Array Electrodes

Table 3

𝑄_net and degradation efficiency of 0.4 mmol/L benzoic acid with different NaNO₃ concentrations under illumination of 7.9 mW/cm² and a fixed applied bias voltage of 2.5 V.

Electrolyte concentration (mol/L)	0.5	1	1.5	2
𝑄net (mC)	0.008112	0.009260	0.009415	0.009436
DE (%)	85.57	97.68	99.31	99.54