“…Titanium dioxide (TiO 2 , titania) is widely recognized as an efficient, stable, and green photocatalytic material (long term stability, chemical inertness and corrosion resistance). Therefore, its application potential in photocatalysis is still growing and presently focuses on emergency areas, such as environmental remediation (water treatment and air purification), renewable energy processes (i.e., photocurrent generation, water splitting for hydrogen production, conversion of CO 2 to hydrocarbons) and self-cleaning surfaces [1][2][3][4][5]. However, the application of titania is still limited to regions with a high intensity of solar radiation due to its wide bandgap (ca.…”