基于高比表面介孔双晶TiO2晶须(TiO2 (m)),通过共同负载活性组分Pt和CdS量子点(QDs),制备得到CdS-Pt-TiO2(m)三元复合催化剂.使用透射电子显微镜(TEM)、X线衍射仪(XRD)、紫外-可见光吸收光谱仪(UV-Vis)和N2吸附-脱附方法对催化剂的形貌和结构进行表征,并以生物质甘油-水为光催化产氢评价体系.结果表明:通过多种活性组分的共同负载,使得TiO2光催化剂实现了较好的可见光催化活性,CdS-Pt-TiO2 (m)的平均产氢速率达到0.56 mmol/(g·h).
Based on the mesoporous bicrystalline TiO2 whiskers (TiO2(m)),CdS-Pt-TiO2 (m) ternary catalyst was prepared by loading of Pt and CdS quantum dots (QDs).The morphology and the structure of catalyst were characterized by transmission electron microscopy (TEM),X-ray powder diffraction (XRD),ultraviolet-visible absorption spectrum (UV-Vis),and N2 adsorption-desorption method with glycerol aqueous solution as the photocatalytic test system.Results showed that TiO2 photocatalyst achieved preferable photocatalytic performance under visible light by the co-loading of active components,the hydrogen production rate of CdS-Pt-TiO2(m) was 0.56 mmol/(g·h).