Why is anatase important? "Titanium oxide nanoparticles (TiO2, anatase) are the most explored photocatalytic nanoparticles, and they have extensive application within catalysis, self-cleaning, UVshielding, optical filters, organic photovoltaic (OPV), organic and printed electronics, and many others", as told by particularmaterials.com. "Recently, a broad range of research efforts has been devoted to enhancing the optical and electrical properties of TiO2, resulting in improved photocatalytic activity" . In Kang and coworkers review, the "state-of-the-art modification strategies in optimizing the photocatalytic performance of TiO2" are given.