Cu_2O/Bi_2MoO_6光催化剂的制备、表征与性质研究  

Preparation,characterization and properties of visible-light photocatalyst Cu_2O/Bi_2MoO_6

作　　者：李欣欣[1] 曾志伟[1] 胡海琴[1] 师亚利[1] 宋继梅[1] 

机构地区：[1]安徽大学化学化工学院,功能无机材料化学安徽省重点实验室,安徽合肥230601

出　　处：《环境污染与防治》2015年第2期63-67,73,共6页Environmental Pollution & Control

基　　金：国家自然科学基金资助项目(No.21171002);安徽省自然科学基金资助项目(No.11040606M55);安徽省教育厅自然科学基金资助项目(No.KJ2010A015);安徽大学研究生学术创新研究项目(No.01001770-10117700078);安徽大学大学生科研训练计划项目(No.kyxl2013014)

摘　　要：通过溶剂热法成功合成了一系列不同掺杂比的Cu2O/Bi2MoO6复合纳米光催化剂,利用X射线衍射(XRD)、拉曼(Raman)光谱、透射电子显微镜(TEM)、X射线光电子能谱(XPS)和紫外—可见漫反射光谱(DRS)等手段对所得产物进行表征。以染料结晶紫为模拟污染物,研究了所合成产物的光催化性能。结果表明,Cu、Mo摩尔比为0.08的复合纳米光催化剂的光催化效率最高,可见光照射100min对结晶紫溶液的降解率可达95.60%。此外,探讨了Cu2O掺杂量对光催化剂性能的影响,提出了可能的光催化反应机制。A coupled system of Cu2O/Bi2MoO6 with enhanced visible-light photocatalytic activity was successfully synthesized using ethylene glycol （EG） as a solvent. The products were characterized by X-ray power diffraction （XRD） ,Raman spectrum, transmission electron microscopy （TEM）, X-ray photoelectron spectroscopy （XPS）, and UV-vis diffuse reflection spectrum （DRS） in detail. The photocatalytic activity of the samples was evaluated using crystal violet （CV） as a model organic pollution. As a result,the sample with the mole ratio of Cu/Mo 0.08 exhibited the excellent visible-light-driven photocatalytic performance, and the degradation ratio of crystal violet reached 95.60% within 100 rain. The effects of the amount of cuprous oxide on catalytic activity of the as-synthesized Cu2O/Bi2 MoO6 were investigated and the possible reaction mechanism of the system was proposed.

关 键 词：CU2O Bi2MoO4光催化结晶紫 

分 类 号：X703[环境科学与工程—环境工程] O643.36[理学—物理化学]