中文摘要：

应用一锅法合成了Keggin结构ⅡB族元素取代的钨硼杂多酸盐K7[BW11O39M（H2O）]（M=Zn,Cd）,用元素分析、傅里叶变换红外光谱、紫外光谱、X射线粉末衍射等手段对其结构进行了表征。以生物偶氮染料甲基红模拟废水,考察了紫外光照射下K7[BW11O39M（H2O）]的光催化性能。结果表明,对pH 2的25μmol.L^-1甲基红水溶液,K7[BW11O39M（H2O）]投加量为20mg.L^-1,光照60min时,甲基红的降解率可达95%以上。

英文摘要：

The Keggin ⅡB element-monosubstitiuted heteropoly compounds with the stoichiometry of K7（M=Zn,Cd） were prepared by one-pot method and characterizated via elemental analyses,FTIR,UV and XRD.The photocatalytic activity of K7 was tested vis degradation of the model molecule,methyl red（MR）.After 60 min irradiation in the presence of K7（20 mg·L-1）,the degradation rate of an aqueous MR（25 μmol·L-1,pH 2） got to 95%.