Preparation and photo-degradation performance of composite catalysts

Through facile mixing and heating method, g-C₃N₄ and ZnO organic – inorganic composite with varying the content of g-C₃N₄ has been synthesized. The composite catalysts were characterized by X-ray diffraction, BET surface area measurements and etc. The activity of composite photocatalyst g-C₃N₄–ZnO with 50% or 70% g-C₃N₄ for photo-degradation of MO is higher than that of either single-phase g-C₃N₄ or ZnO under visible light irradiation. Due to the enhancement of electron–hole separation, the as-prepared organic-inorganic composite exhibits an improved photo-degradation performance. (paper)