摘要
以Na2WO4和HCl为原料通过液相沉淀法制备了WO3粉体,再用钛酸四丁酯和制备的WO3粉体通过钛酸胶体浸渍法制备了TiO2掺杂的WO3粉体,并利用傅里叶红外光谱仪和紫外-可见分光光度计对产品的性能进行了表征。结果表明,当煅烧温度为550℃、TiO2掺杂量为5%、催化剂最佳用量为0.04g时,TiO2掺杂的WO3粉体的催化降解性能最好,对甲基紫的降解率可达88.56%。
The WOa powder were prepared through liquid precipitation using Na2 WO4 and HC1 as raw mate- rial, and TiO2 doped WO3 powder were prepared through titanium acid colloid impregnation by tetrabutyl titanate and WOa powder. The performances of the products were characterized by Fourier infrared spectrometer and ultraviolet- visible spectrophotometer. The results showed that TiO2 doped WOa powder have the best catalytic degradation per- formance with calcination temperature 550 ℃, TiO2 doping content 5%, and the best dosage of catalyst 0. 04 g, and the degradation rate of methylene violet can reach 88. 56%.
关键词
WO3掺杂制备光催化性能
W03, doping, preparation, photocatalytic performance
