Preparation of CdS-K_2La_2Ti_(3-x)Pb_xO_(10) and Its Photocatalytic Property

K2La2Ti3-xPbxO10 powder was synthesized via a stearic acid method.CdS-intercalated K2La2Ti3-xPbxO10 composite photocatalysts were synthesized via ion-exchange reaction,butylamine pillaring and sulfuration processes under the assistance of the microwave irradiation(designated as CdS-K2La2Ti3-xPbxO10).The photocatalysts were determined by X-ray diffraction(XRD),scanning electron microscope(SEM),X-ray energy dispersive spectroscope(EDS),ultraviolet-visible diffuse reflection spectra(UV-Vis),X-ray photoelectron spectroscopy(XPS),and photoluminescence measurement(PL).The photocatalytic activities of CdS-K2La2Ti3-xPbxO10 for hydrogen production were also investigated under UV and visible light irradiation.The results reveal that the Pb ions doping and CdS-intercalated K2La2Ti3-xPbxO10 photocatalysts can widen the range of absorb visible light and greatly enhances the photocatalytic activity.The photocatalytic activities for hydrogen production of the CdS-intercalated K2La2Ti3-xPbxO10prepared via a microwave assisted procedure are 230.15 and 3.35 mmol/(g cat) under UV light and visible light irradiation,respectively,after 3 h irradiation.The mechanism photocatalysis is deduced as well.