Layered Photocatalytic Materials K <sub> 2 </ Sub> La <sub> 2 </ Sub> Ti <sub> 3 </ Sub> O <sub> 10 </ Sub> Preparation And Properties Of,

Because of its full of active reaction points, Perovskite-type layered composites become one of the most important kind of photocatalytic materials and will be widely used in overall water splitting . This dissertation was mainly discussed on K₂La₂li₃O₁₀. A series of K₂La₂li₃O₁₀. with different sizes were obtained by Solid-State reaction using TiO₂ with different average particle sizes as raw material. The products were characterized by X-ray diffraction (XRD), transmission electron microcopy (TEM), thermogravity analysis (TG), Fourier transform infrared spectroscopy (FT-IR) experiments. It was found that the average size of the TiO₂ influents the solid-state reaction, the morphology of the layered titanates, H⁺-exchanging, alkylamine-intercalation, pillaring and exfoliation properties of the layered K₂La₂li₃O₁₀. . Ultrafine layered K₂La₂li₃O₁₀. was successfully fabricated by stearic acid method for the first time and it was easily exfoliated in HNO₃. In the H⁺-exchanging section, four different kinds of acid were used and the influence of the acid on the layer structure of the products was studied . It was raised that the layer structure of the products was mainly effected by the anion of the acid . For the first time we attempted to pillar CdS into the layered K₂La₂li₃O₁₀. in order to enhance its photocatalytic activity and we had done it successfully.