g-C3N4/TiO2 hybrid photocatalyst with wide absorption wavelength range and effective photogenerated charge separation

► g-C3N4/TiO2 can superpose visible light response of g-C3N4 and UV response of TiO2. ► g-C3N4/TiO2 hybrid displays good photogenerated charge separation capability. ► g-C3N4/TiO2 photocatalyst is used to decompose toxic pollutants for the first time.