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.
出处
《环境化学》
CAS
CSCD
北大核心
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
关键词
WO3
MOO3
光催化
掺杂
tungsten trioxide, molybdenum trioxide, photocatalysis, doping.