“…In recent years, the research on photocatalysis technology of TiO 2 has attracted increasing attention from scientic communities due to its appealing advantages such as the high catalytic oxidation activity, the fast photocatalysis degradation reaction, the high photocatalytic activity, and so on. 2,3 Thus, TiO 2 based photocatalysts have great potential for applications in a wide range of areas, for example, environmental management, 4 development of new energy, [5][6][7][8][9] air purication, 10,11 sewage treatment, 12 self-cleaning ceramics, 13,14 sterilization material, [15][16][17][18] photoelectric conversion, 19,20 etc. However, the application of TiO 2 based photocatalysts is still limited due to the following two aspects.…”