Fabrication, Modification, and Emerging Applications of TiO2 Nanotube Arrays by Electrochemical Synthesis: A Review
Figure 6
(a) Scheme of photo-induced processes at a TiO2 semiconductor/electrolyte interface. Light excites valence band electron to conduction band. Electrons and holes react with environment acceptor (A) and/or donor (D). (b) XRD patterns of TNAs film. (c) Comparison of photocatalytic degradation rates of MO for nanoparticle film and two different thicknesses of nanotubes films (A) under the high-pressure mercury lamp illumination. (d) ATR−IR spectra of MO before and after photocatalytic degradation.
