Preparation and photocatalytic properties of porous C and N co-doped TiO2 deposited on brick by a fast, one-step microwave irradiation method

The surface of the brick was fully covered by (C, N)-TiO2 layer, and carbon and nitrogen atoms were successfully doped into ATiO2, which can provide a longer lifetime for photo-produced electron-hole pairs. Besides, the as-prepared sample contained many pores ranging widely in sizes which can greatly improve the ability to adsorb MO and sunlight, and therefore good photocatalytic properties. The preparation of (C, N)-TiO2/brick has environmental significance, and it is inexpensive, highly efficient, and recyclable.70