Photoelectrochemical Performance of Nb-doped TiO<sub>2</sub> Nanoparticles Fabricated by Hydrothermal Treatment of Titanate Nanotubes in Niobium Oxalate Aqueous Solution

Photoelectrochemical Performance of Nb-doped TiO₂ Nanoparticles Fabricated by Hydrothermal Treatment of Titanate Nanotubes in Niobium Oxalate Aqueous Solution

Lizhen Long^1,², Liangpeng Wu¹, Xu Yang¹, Xinjun Li^1,^*

Fig. 3. EIS Nyquist plots of undoped and Nb-doped TiO 2 under UV illumination.