MoO_3掺杂WO_3催化剂的制备及其光催化性能  

STUDY OF PREPARATION AND PHOTOCATALYTIC ACTIVITY OF WO_3 DOPED WITH MoO_3

作　　者：宋娟[1] 宋继梅[1] 胡媛[1] 陈盼盼[1] 王为[1] 

机构地区：[1]安徽大学化学化工学院,合肥230039

出　　处：《环境化学》2008年第6期721-725,共5页Environmental Chemistry

基　　金：安徽省教育厅自然科学基金(No.2005KJ100);安徽省高等学校'十五'优秀人才建设经费资助;安徽大学人才队伍建设经费资助项目

摘　　要：采用低温水热法制备掺杂MoO3的WO3粉体,利用XRD,XPS,DRS和PL光谱对产物进行表征,以太阳光为光源对番红花红T溶液进行光催化降解研究.结果表明:MoO3掺杂含量为10%的WO3粉体对番红花红T溶液的脱色率为89.65%,COD去除率为88.9%.借助DRS和PL光谱分析结果,初步探讨了MoO3掺杂WO3粉体对番红花红T光催化降解的过程与机理.WO3 powders doped with MoO3 were successfully prepared by the hydrothermal method. The products were characterized via X-ray powder diffraction （XRD）, X-ray photoelectron spectroscopy （XPS） analysis, UV-Vis diffused reflectance spectra （DRS） and photoluminescence （PL） spectrum. The photocatalytic degradation of safranin T in MoO3/WO3 products under sunlight was studied. The results showed that the decoloration rate of safranin T in 10% MoO3/WO3 sample was 89.65%, and the removal rate of chemical oxygen demand （COD） was 88.9%. Moreover, by means of the analytical results of DRS and PL spectrum, the photocatalytic degradation process and mechanism of safranin T in MoO3/WO3 samples were tentatively discussed.

关 键 词：WO3 MOO3 光催化 掺杂 

分 类 号：O643.36[理学—物理化学] TQ426.8[理学—化学]