中山大学学报（自然科学版）2011，Vol.50Issue(1)：85-88,4.
La-CdS/TiO2光催化剂的制备及表征
Preparation and Characterization of La-CdS/TiO2 Photocatalyst
摘要
Abstract
The La-CdS/TiO2 photocatalysts were prepared using hydrothermal method by metal doping coupled with semiconductor composite method. The products were characterized by SEM, XRD and UVvisible DRS, respectively. The photocatalytic performances of samples were studied on the degradation of methyl orange (MO). It was found that the absorption of La-CdS/TiO2 enhanced significantly, both in ultraviolet and visible light region. And the absorption edge was 452 nm, which shifted to the low energies ( visible light region). Compared to bare TiO2, La doping reduced combination rates of the electronhole pairs and the coupled of CdS improved the response of TiO2 to visible light, which resulted in the optical response enhancement. After being irradiated for 15 minutes, the degradation rate on MO for the LaCdS/TiO2 catalyst almost reached 99％.关键词
镧掺杂/CdS/二氧化钛/光催化活性分类
化学化工引用本文复制引用
高洪涛,刘园园..La-CdS/TiO2光催化剂的制备及表征[J].中山大学学报（自然科学版）,2011,50(1):85-88,4.基金项目
山东省优秀中青年科学家科研奖励基金资助项目(2008BS09016) （2008BS09016）
