Electropolymerization as a new route to g-C3N4 coatings on TiO2 nanotubes for solar applications†
Abstract
Continuous coatings of graphitic carbon nitride (g-C3N4) are obtained on 3D conductive substrates, such as TiO2 nanotubes, by a new and simple process consisting of melamine electropolymerization followed by heat treatment. According to TEM observations, coatings with a thickness of 2–3 nm are uniformly distributed on the surface of the TiO2 nanotubes. The chemical nature of the films is identified by X-ray diffraction and a variety of spectroscopic methods. The properties of the coatings indicate possible solar applications.